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<meta name="keywords" content="C2751308, achromatopsia 5, cod4, cone dystrophy 4, cone dystrophy caused by mutation in pde6c, cone dystrophy type 4, cone-rod dystrophy 4, disease or syndrome, pde6c, pde6c cone dystrophy, autosomal dominant, autosomal recessive, birth defects, chromosomal disease, chromosome, clinical features, clinical findings, clinical genetics, clinical recommendations, clinvar, congenital chromosomal disease, consumer genetic resources, cytogenetic location, disease characteristics, disease definitions, disease descriptions, disease ontology, disease synonyms, disease vocabulary, dysmorphology, entrez, familial disease, gene, gene-disease relationship, genereviews, genetic disease, genetic disorder, genetic terminology, genetic testing registry, genetics home reference, genomic disease, gtr, hereditary disease, heritable disease, hpo, human phenotype ontology, inherited disease, management guidelines, maternal inheritance, medgen, medical genetics, medical subject headings, mesh, mitochondrial inheritance, mode of inheritance, national center for biotechnology information, national institutes of health, national library of medicine, ncbi, nih, nlm, omim, ordo, orphanet, paternal inheritance, phenome, position statements, professional practice guidelines, rare disease, reference sequence, refseq, snomed ct, syndrome, undiagnosed diseases, x-linked recessive" /><meta name="description" content="Achromatopsia is characterized by reduced visual acuity, pendular nystagmus, increased sensitivity to light (photophobia), a small central scotoma, eccentric fixation, and reduced or complete loss of color discrimination. All individuals with achromatopsia (achromats) have impaired color discrimination along all three axes of color vision corresponding to the three cone classes: the protan or long-wavelength-sensitive cone axis (red), the deutan or middle-wavelength-sensitive cone axis (green), and the tritan or short-wavelength-sensitive cone axis (blue). Most individuals have complete achromatopsia, with total lack of function of all three types of cones. Rarely, individuals have incomplete achromatopsia, in which one or more cone types may be partially functioning. The manifestations are similar to those of individuals with complete achromatopsia, but generally less severe. Hyperopia is common in achromatopsia. Nystagmus develops during the first few weeks after birth followed by increased sensitivity to bright light. Best visual acuity varies with severity of the disease; it is 20/200 or less in complete achromatopsia and may be as high as 20/80 in incomplete achromatopsia. Visual acuity is usually stable over time; both nystagmus and sensitivity to bright light may improve slightly. Although the fundus is usually normal, macular changes (which may show early signs of progression) and vessel narrowing may be present in some affected individuals. Defects in the macula are visible on optical coherence tomography." /><meta name="robots" content="index,nofollow,noarchive" />
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<title>Cone dystrophy 4 (Concept Id: C2751308)
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<!--
UID=416518
ConceptID=C2751308
-->
<!--imgCountBooks = 0--><h1 class="medgenTitle"><div class="MedGenTitleText">Cone dystrophy 4<span class="h1sub">(COD4)</span></div></h1><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>416518</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C2751308</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div><table class="medgenTable"><tbody><tr><td>Synonyms:</td>
<td>COD4; Cone-Rod Dystrophy 4</td></tr>
<tr><td colspan="2" class="small"> </td></tr><tr><td><a class="help jig-ncbi-popper" data-jig="ncbipopper" href="#target-gene-loc">Gene (location):<img class="pulldown" src="//static.pubmed.gov/portal/portal3rc.fcgi/4223267/img/4204968" /></a><div class="display-none" id="target-gene-loc">
Gene(s) directly associated with<br />
this condition or phenotype.</div></td>
<td><a target="_blank" title="PDE6C - ID: 5146 - NCBI Gene" href="/gene/5146" class="medgenPMinfo">PDE6C</a> (10q23.33)</td></tr>
<tr><td colspan="2" class="small"> </td></tr><tr><td>Monarch Initiative:</td>
<td><a href="https://monarchinitiative.org/disease/MONDO:0013129" target="_blank">MONDO:0013129</a></td></tr>
<tr><td>OMIM<span class="superscript">®</span>:</td>
<td><a href="https://omim.org/entry/613093" target="_blank">613093</a></td></tr>
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<div class="portlet mgSection" id="ID_101">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Disease_characteristics">Disease characteristics</h1><a sid="101" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><div class="excerpt">Excerpted from the <i>GeneReview: </i><a href="/books/NBK1418" target="_blank">Achromatopsia</a></div><div>Achromatopsia is characterized by reduced visual acuity, pendular nystagmus, increased sensitivity to light (photophobia), a small central scotoma, eccentric fixation, and reduced or complete loss of color discrimination. All individuals with achromatopsia (achromats) have impaired color discrimination along all three axes of color vision corresponding to the three cone classes: the protan or long-wavelength-sensitive cone axis (red), the deutan or middle-wavelength-sensitive cone axis (green), and the tritan or short-wavelength-sensitive cone axis (blue). Most individuals have complete achromatopsia, with total lack of function of all three types of cones. Rarely, individuals have incomplete achromatopsia, in which one or more cone types may be partially functioning. The manifestations are similar to those of individuals with complete achromatopsia, but generally less severe. Hyperopia is common in achromatopsia. Nystagmus develops during the first few weeks after birth followed by increased sensitivity to bright light. Best visual acuity varies with severity of the disease; it is 20/200 or less in complete achromatopsia and may be as high as 20/80 in incomplete achromatopsia. Visual acuity is usually stable over time; both nystagmus and sensitivity to bright light may improve slightly. Although the fundus is usually normal, macular changes (which may show early signs of progression) and vessel narrowing may be present in some affected individuals. Defects in the macula are visible on optical coherence tomography. [from <a title="GeneReviews" href="https://www.ncbi.nlm.nih.gov/books/NBK1116" class="defSource" target="_blank">GeneReviews</a>]</div><div class="spaceAbove"><strong>Full text of <i>GeneReview</i> (by section):</strong><br /><a class="medgenPMinfo" href="/books/NBK1418#achm.Summary" target="NBK1418">Summary</a>  |  <a class="medgenPMinfo" href="/books/NBK1418#achm.GeneReview_Scope" target="NBK1418">GeneReview Scope</a>  |  <a class="medgenPMinfo" href="/books/NBK1418#achm.Diagnosis" target="NBK1418">Diagnosis</a>  |  <a class="medgenPMinfo" href="/books/NBK1418#achm.Clinical_Characteristics" target="NBK1418">Clinical Characteristics</a>  |  <a class="medgenPMinfo" href="/books/NBK1418#achm.Genetically_Related_Allelic_Disorde" target="NBK1418">Genetically Related (Allelic) Disorders</a>  |  <a class="medgenPMinfo" href="/books/NBK1418#achm.Differential_Diagnosis" target="NBK1418">Differential Diagnosis</a>  |  <a class="medgenPMinfo" href="/books/NBK1418#achm.Management" target="NBK1418">Management</a>  |  <a class="medgenPMinfo" href="/books/NBK1418#achm.Genetic_Counseling" target="NBK1418">Genetic Counseling</a>  |  <a class="medgenPMinfo" href="/books/NBK1418#achm.Resources" target="NBK1418">Resources</a>  |  <a class="medgenPMinfo" href="/books/NBK1418#achm.Molecular_Genetics" target="NBK1418">Molecular Genetics</a>  |  <a class="medgenPMinfo" href="/books/NBK1418#achm.Chapter_Notes" target="NBK1418">Chapter Notes</a>  |  <a class="medgenPMinfo" href="/books/NBK1418#achm.References" target="NBK1418">References</a></div><div class="spaceAbove"><strong>Authors:</strong><br />
Susanne Kohl  |  Herbert Jägle  |  Bernd Wissinger<i>, et. al.</i>   <a href="/books/NBK1418" target="NBK1418" title="NCBI Bookshelf: Achromatopsia">view full author information</a></div></div>
</div>
<div class="portlet mgSection" id="ID_117">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Additional_description">Additional description</h1><a sid="117" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><div class="mgSection"><strong>From OMIM</strong><br />Cone photoreceptor disorders form a clinical spectrum of diseases that include progressive cone dystrophy (COD) and complete and incomplete achromatopsia (ACHM). Impairment or death of cone photoreceptor cells is the clinical hallmark of these disorders. COD is a progressive cone disorder in which patients may initially have normal cone function but develop progressive visual acuity loss, increasing photophobia, color vision disturbances, and diminished cone responses on ERG, usually in the first or second decade of life. The visual acuity of these patients generally worsens to legal blindness before the fourth decade of life. ACHM is a stationary congenital autosomal recessive cone disorder characterized by low visual acuity, photophobia, nystagmus, and severe color vision defects. Patients with the complete ACHM subtype have no cone function on electroretinography, whereas those with incomplete ACHM show residual cone function (summary by Thiadens et al., 2009).  <a target="_blank" href="http://www.omim.org/entry/613093">http://www.omim.org/entry/613093</a></div></div>
</div>
<div class="portlet mgSection" id="ID_102">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Clinical_features">Clinical features</h1><a sid="102" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln clinfeat"><strong>From HPO</strong><br />
<div class="divPopper rprt" id="clin_43220"><div><strong>Photophobia</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>43220</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0085636</a></dd><dt><span class="dotprefix"></span></dt><dd>Sign or Symptom</dd></dl></div></div></div>
<div class="spaceAbove">Excessive sensitivity to light with the sensation of discomfort or pain in the eyes due to exposure to bright light.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/43220">Feature record</a> | <a href="/medgen?term=%22Photophobia%22%5BClinical%20Features%5D%20OR%2043220%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_45166"><div><strong>Nystagmus</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>45166</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0028738</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Rhythmic, involuntary oscillations of one or both eyes related to abnormality in fixation, conjugate gaze, or vestibular mechanisms.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/45166">Feature record</a> | <a href="/medgen?term=%22Nystagmus%22%5BClinical%20Features%5D%20OR%2045166%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_65889"><div><strong>Reduced visual acuity</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>65889</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0234632</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Diminished clarity of vision.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/65889">Feature record</a> | <a href="/medgen?term=%22Reduced%20visual%20acuity%22%5BClinical%20Features%5D%20OR%2065889%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_602333"><div><strong>Absent foveal reflex</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>602333</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0423420</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Lack of the foveal reflex, which normally occurs as a result of the reflection of light from the ophthalmoscope in the foveal pit upon examination. The foveal reflex is a bright pinpoint of light that is observed to move sideways or up and down in response to movement of the opthalmoscope.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/602333">Feature record</a> | <a href="/medgen?term=%22Absent%20foveal%20reflex%22%5BClinical%20Features%5D%20OR%20602333%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_163559"><div><strong>Dyschromatopsia</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>163559</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0858618</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">A form of colorblindness in which only two of the three fundamental colors can be distinguished due to a lack of one of the retinal cone pigments.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/163559">Feature record</a> | <a href="/medgen?term=%22Dyschromatopsia%22%5BClinical%20Features%5D%20OR%20163559%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_777085"><div><strong>Visual impairment</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>777085</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C3665347</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Visual impairment (or vision impairment) is vision loss (of a person) to such a degree as to qualify as an additional support need through a significant limitation of visual capability resulting from either disease, trauma, or congenital or degenerative conditions that cannot be corrected by conventional means, such as refractive correction, medication, or surgery.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/777085">Feature record</a> | <a href="/medgen?term=%22Visual%20impairment%22%5BClinical%20Features%5D%20OR%20777085%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_893040"><div><strong>Undetectable light-adapted electroretinogram</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>893040</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C4072955</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">No detectable response to the light-adapted 3.0 ERG (single-flash cone response). This type of ERG measures responses of the cone system; a-waves arise from cone photoreceptors and cone off-bipolar cells; the b-wave comes from On- and Off-cone bipolar cells.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/893040">Feature record</a> | <a href="/medgen?term=%22Undetectable%20light-adapted%20electroretinogram%22%5BClinical%20Features%5D%20OR%20893040%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_896366"><div><strong>Cone-rod dystrophy</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>896366</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C4085590</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">There are more than 30 types of cone-rod dystrophy, which are distinguished by their genetic cause and their pattern of inheritance: autosomal recessive, autosomal dominant, and X-linked. Additionally, cone-rod dystrophy can occur alone without any other signs and symptoms or it can occur as part of a syndrome that affects multiple parts of the body.\n\nThe first signs and symptoms of cone-rod dystrophy, which often occur in childhood, are usually decreased sharpness of vision (visual acuity) and increased sensitivity to light (photophobia). These features are typically followed by impaired color vision (dyschromatopsia), blind spots (scotomas) in the center of the visual field, and partial side (peripheral) vision loss. Over time, affected individuals develop night blindness and a worsening of their peripheral vision, which can limit independent mobility. Decreasing visual acuity makes reading increasingly difficult and most affected individuals are legally blind by mid-adulthood. As the condition progresses, individuals may develop involuntary eye movements (nystagmus).\n\nCone-rod dystrophy is a group of related eye disorders that causes vision loss, which becomes more severe over time. These disorders affect the retina, which is the layer of light-sensitive tissue at the back of the eye. In people with cone-rod dystrophy, vision loss occurs as the light-sensing cells of the retina gradually deteriorate.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/896366">Feature record</a> | <a href="/medgen?term=%22Cone-rod%20dystrophy%22%5BClinical%20Features%5D%20OR%20896366%5Buid%5D">Search on this feature</a></div></div><div class="TreeLite" data-jigconfig="closed: 1"><div class="concept-def"><a class="small" href="#" onclick="jQuery(&quot;.TreeLite&quot;,&quot;#ID_102&quot;).TreeLite().openAll(); return false;">Show all</a><a class="small" href="#" onclick="jQuery(&quot;.TreeLite&quot;,&quot;#ID_102&quot;).TreeLite().closeAll(); return false;">Hide all</a></div><ul><li><span class="TLline">Abnormality of the eye</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_602333" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Absent foveal reflex</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_896366" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Cone-rod dystrophy</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_163559" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Dyschromatopsia</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_45166" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Nystagmus</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_65889" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Reduced visual acuity</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_893040" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Undetectable light-adapted electroretinogram</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_777085" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Visual impairment</a></span></li></ul></li><li><span class="TLline">Abnormality of the nervous system</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_43220" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Photophobia</a></span></li></ul></li></ul></div></div>
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<div class="portlet_content ln"><h3 class="subhead">PubMed<a class="help jig-ncbi-popper" data-jig="ncbipopper" href="#guidelinesHelpPM"><img class="pulldown" src="//static.pubmed.gov/portal/portal3rc.fcgi/4223267/img/4204968" /></a></h3>
<div class="nl"><a target="_blank" href="/pubmed/36934831">Foveal photoreceptor disruption in ocular diseases: An optical coherence tomography-based differential diagnosis.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Singh SR,
Vaidya H,
Borrelli E,
Chhablani J</span><br />
<span class="medgenPMjournal">Surv Ophthalmol</span>
2023 Jul-Aug;68(4):655-668.
Epub 2023 Mar 18
doi: 10.1016/j.survophthal.2023.03.003.
<span class="bold">PMID: </span><a href="/pubmed/36934831" target="_blank">36934831</a></div>
<div class="nl"><a target="_blank" href="/pubmed/35170407">Clinical Observation and Genotype-Phenotype Analysis of ABCA4- Related Hereditary Retinal Degeneration before Gene Therapy.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Xiao X,
Ye L,
Chen C,
Zheng H,
Yuan J</span><br />
<span class="medgenPMjournal">Curr Gene Ther</span>
2022;22(4):342-351.
doi: 10.2174/1566523222666220216101539.
<span class="bold">PMID: </span><a href="/pubmed/35170407" target="_blank">35170407</a><a href="/pmc/articles/PMC10495610" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/33544131">Revealing How Color Vision Phenotype and Genotype Manifest in Individual Cone Cells.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Zhang F,
Kurokawa K,
Bernucci MT,
Jung HW,
Lassoued A,
Crowell JA,
Neitz J,
Neitz M,
Miller DT</span><br />
<span class="medgenPMjournal">Invest Ophthalmol Vis Sci</span>
2021 Feb 1;62(2):8.
doi: 10.1167/iovs.62.2.8.
<span class="bold">PMID: </span><a href="/pubmed/33544131" target="_blank">33544131</a><a href="/pmc/articles/PMC7873503" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=(cone%20dystrophy%204)%20AND%20(%22english%20and%20humans%22%5BFilter%5D)%20AND%20(%20(%22practice%20guideline%22%5BFilter%5D)%20OR%20(practice*%5Btitl%5D%20AND%20(guideline%5Btitl%5D%20OR%20parameter%5Btitl%5D%20OR%20resource%5Btitl%5D%20OR%20bulletin%5Btitl%5D%20OR%20best%5Btitl%5D))%20OR%20(genetic*%5Btitl%5D%20AND%20(evaluation%5Btitl%5D%20OR%20counseling%5Btitl%5D%20OR%20screening%5Btitl%5D%20OR%20test*%5Btitl%5D))%20OR%20(clinical%5Btitl%5D%20AND%20((expert%5Btitl%5D%20AND%20consensus%5Btitl%5D)%20OR%20utility%5Btitl%5D%20OR%20guideline*%5Btitl%5D))%20OR%20(management%5Btitl%5D%20AND%20(clinical%5Btitl%5D%20OR%20diagnos*%5Btitl%5D%20OR%20recommendation%5Btitl%5D%20OR%20pain%5Btitl%5D%20OR%20surveillance%5Btitl%5D%20OR%20emergency%5Btitl%5D%20OR%20guideline*%5Btitl%5D%20OR%20therap*))%20OR%20(treatment%5Btitl%5D%20AND%20((evaluation%5Btitl%5D%20AND%20diagnosis%5Btitl%5D)%20OR%20(assessment%5Btitl%5D%20AND%20prevention%5Btitl%5D)%20OR%20therap*))%20OR%20(Diagnos*%5Btitl%5D%20AND%20(prenatal%5Btitl%5D%20OR%20treatment%5Btitl%5D%20OR%20follow-up%5Btitl%5D%20OR%20statement%5Btitl%5D%20OR%20criteria%5Btitl%5D%20OR%20newborn%5Btitl%5D%20OR%20differential%5Btitl%5D%20OR%20neonatal%5Btitl%5D%20OR%20neonate%5Btitl%5D))%20OR%20(guideline*%5Btitl%5D%20AND%20(pharmacogenetic*%5Btitl%5D%20OR%20recommendation%5Btitl%5D%20OR%20therap*%5Btitl%5D%20OR%20evidence-based%5Btitl%5D%20OR%20consensus%5Btitl%5D%20OR%20(technical%5Btitl%5D%20AND%20standard*%5Btitl%5D)%20OR%20(molecular%5Btitl%5D%20AND%20testing%5Btitl%5D)))%20OR%20(risk%5Btitl%5D%20AND%20assessment%5Btitl%5D)%20OR%20(recommendation*%5Btitl%5D%20AND%20(statement%5Btitl%5D%20OR%20Evidence-based%5Btitl%5D%20OR%20Consensus%5Btitl%5D))%20OR%20(care%20AND%20((Patient%5Btitl%5D%20AND%20standard*%5Btitl%5D)%20OR%20primary%5Btitl%5D%20OR%20psychosocial%5Btitl%5D))%20OR%20(Health%5Btitl%5D%20AND%20supervision%5Btitl%5D)%20OR%20(statement%5Btitl%5D%20AND%20(policy%5Btitl%5D%20OR%20position%5Btitl%5D%20OR%20Consensus%5Btitl%5D))%20OR%20(pharmacogenetics%5Btitl%5D%20AND%20(Dosing%5Btitl%5D%20OR%20therap*%5Btitl%5D%20OR%20genotype*%5Btitl%5D%20OR%20drug*%5Btitl%5D))%20OR%20(Chemotherapy%5Btitl%5D%20AND%20decision*%5Btitl%5D)%20OR%20(screening%5Btitl%5D%20AND%20(newborn%5Btitl%5D%20OR%20neonat*%5Btitl%5D%20OR%20detection%5Btitl%5D%20OR%20diagnos*%5Btitl%5D))%20OR%20(criteria%5Btitl%5D%20OR%20genotype*%5Btitl%5D)%20)%20NOT%20(%22Case%20reports%22%5BPublication%20type%5D%20OR%20%22clinical%20study%22%5BPublication%20Type%5D%20OR%20%22randomized%20controlled%20trial%22%5BPublication%20Type%5D)" title="PubMed search">See all (26)</a></div><h3 class="subhead">Curated<a class="help jig-ncbi-popper" data-jig="ncbipopper" href="#guidelinesHelpCurated"><img class="pulldown" src="//static.pubmed.gov/portal/portal3rc.fcgi/4223267/img/4204968" /></a></h3>
<div class="nl"><a target="_blank" href="/pubmed/21267001">Clinical utility gene card for: achromatopsia.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Kohl S,
Hamel CP</span><br />
<span class="medgenPMjournal">Eur J Hum Genet</span>
2011 Jun;19(6)
Epub 2011 Jan 26
doi: 10.1038/ejhg.2010.231.
<span class="bold">PMID: </span><a href="/pubmed/21267001" target="_blank">21267001</a><a href="/pmc/articles/PMC3110037" target="_blank" class="PubMedFree">Free PMC Article</a></div>
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<div class="display-none help-popup" id="guidelinesHelpPM">These guidelines are articles in PubMed that match specific search criteria developed by MedGen to capture the most relevant practice guidelines. This list may not be comprehensive and may include broader topics as well. See the <a href="/medgen/docs/faq/" title="Frequently asked questions" target="_blank">FAQ</a> for details.</div><div class="display-none help-popup" id="guidelinesHelpCurated">These guidelines are manually curated by the MedGen team
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<div class="portlet mgSection" id="ID_103">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Recent_clinical_studies">Recent clinical studies</h1><a sid="103" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><h3 class="subhead">Etiology</h3>
<div class="nl"><a target="_blank" href="/pubmed/36835061">High-Efficiency CRISPR/Cas9-Mediated Correction of a Homozygous Mutation in Achromatopsia-Patient-Derived iPSCs.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Siles L,
Gaudó P,
Pomares E</span><br />
<span class="medgenPMjournal">Int J Mol Sci</span>
2023 Feb 11;24(4)
doi: 10.3390/ijms24043655.
<span class="bold">PMID: </span><a href="/pubmed/36835061" target="_blank">36835061</a><a href="/pmc/articles/PMC9964936" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/30578505">Ciliopathy: Usher Syndrome.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Tsang SH,
Aycinena ARP,
Sharma T</span><br />
<span class="medgenPMjournal">Adv Exp Med Biol</span>
2018;1085:167-170.
doi: 10.1007/978-3-319-95046-4_32.
<span class="bold">PMID: </span><a href="/pubmed/30578505" target="_blank">30578505</a></div>
<div class="nl"><a target="_blank" href="/pubmed/30578497">Rod Monochromatism (Achromatopsia).</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Tsang SH,
Sharma T</span><br />
<span class="medgenPMjournal">Adv Exp Med Biol</span>
2018;1085:119-123.
doi: 10.1007/978-3-319-95046-4_24.
<span class="bold">PMID: </span><a href="/pubmed/30578497" target="_blank">30578497</a></div>
<div class="nl"><a target="_blank" href="/pubmed/29603930">Electroretinographical determination of human color vision type.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Aher AJ,
Martins CMG,
Barboni MTS,
Nagy BV,
Hauzman E,
Bonci DMO,
Ventura DF,
Kremers J</span><br />
<span class="medgenPMjournal">J Opt Soc Am A Opt Image Sci Vis</span>
2018 Apr 1;35(4):B92-B99.
doi: 10.1364/JOSAA.35.000B92.
<span class="bold">PMID: </span><a href="/pubmed/29603930" target="_blank">29603930</a></div>
<div class="nl"><a target="_blank" href="/pubmed/26780318">Screening of ABCA4 Gene in a Chinese Cohort With Stargardt Disease or Cone-Rod Dystrophy With a Report on 85 Novel Mutations.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Jiang F,
Pan Z,
Xu K,
Tian L,
Xie Y,
Zhang X,
Chen J,
Dong B,
Li Y</span><br />
<span class="medgenPMjournal">Invest Ophthalmol Vis Sci</span>
2016 Jan 1;57(1):145-52.
doi: 10.1167/iovs.15-18190.
<span class="bold">PMID: </span><a href="/pubmed/26780318" target="_blank">26780318</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Cone%20dystrophy%204%22%20AND%20Etiology%2Fbroad%5Bfilter%5D%20%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (360)</a></div><h3 class="subhead">Diagnosis</h3>
<div class="nl"><a target="_blank" href="/pubmed/39012573">Principal test for color sensation: clinical aspects.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Sawa M</span><br />
<span class="medgenPMjournal">Jpn J Ophthalmol</span>
2024 Jul;68(4):259-292.
Epub 2024 Jul 16
doi: 10.1007/s10384-024-01075-1.
<span class="bold">PMID: </span><a href="/pubmed/39012573" target="_blank">39012573</a></div>
<div class="nl"><a target="_blank" href="/pubmed/32037395">Copy-number variation contributes 9% of pathogenicity in the inherited retinal degenerations.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Zampaglione E,
Kinde B,
Place EM,
Navarro-Gomez D,
Maher M,
Jamshidi F,
Nassiri S,
Mazzone JA,
Finn C,
Schlegel D,
Comander J,
Pierce EA,
Bujakowska KM</span><br />
<span class="medgenPMjournal">Genet Med</span>
2020 Jun;22(6):1079-1087.
Epub 2020 Feb 10
doi: 10.1038/s41436-020-0759-8.
<span class="bold">PMID: </span><a href="/pubmed/32037395" target="_blank">32037395</a><a href="/pmc/articles/PMC7272325" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/26692730">Achondroplasia and Macular Coloboma.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Ahoor MH,
Amizadeh Y,
Sorkhabi R</span><br />
<span class="medgenPMjournal">Middle East Afr J Ophthalmol</span>
2015 Oct-Dec;22(4):522-4.
doi: 10.4103/0974-9233.167819.
<span class="bold">PMID: </span><a href="/pubmed/26692730" target="_blank">26692730</a><a href="/pmc/articles/PMC4660545" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/17032466">Retinitis pigmentosa.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Hamel C</span><br />
<span class="medgenPMjournal">Orphanet J Rare Dis</span>
2006 Oct 11;1:40.
doi: 10.1186/1750-1172-1-40.
<span class="bold">PMID: </span><a href="/pubmed/17032466" target="_blank">17032466</a><a href="/pmc/articles/PMC1621055" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/411904">Steady-state evoked potentials.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Regan D</span><br />
<span class="medgenPMjournal">J Opt Soc Am</span>
1977 Nov;67(11):1475-89.
doi: 10.1364/josa.67.001475.
<span class="bold">PMID: </span><a href="/pubmed/411904" target="_blank">411904</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Cone%20dystrophy%204%22%20AND%20Diagnosis%2Fbroad%5Bfilter%5D%20%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (585)</a></div><h3 class="subhead">Therapy</h3>
<div class="nl"><a target="_blank" href="/pubmed/29259520">Gene Therapy for Color Blindness.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Hassall MM,
Barnard AR,
MacLaren RE</span><br />
<span class="medgenPMjournal">Yale J Biol Med</span>
2017 Dec;90(4):543-551.
Epub 2017 Dec 19
<span class="bold">PMID: </span><a href="/pubmed/29259520" target="_blank">29259520</a><a href="/pmc/articles/PMC5733843" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/9638755">Congenital dyschromatopsia and school achievement.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Grassivaro Gallo P,
Panza M,
Viviani F,
Lantieri PB</span><br />
<span class="medgenPMjournal">Percept Mot Skills</span>
1998 Apr;86(2):563-9.
doi: 10.2466/pms.1998.86.2.563.
<span class="bold">PMID: </span><a href="/pubmed/9638755" target="_blank">9638755</a></div>
<div class="nl"><a target="_blank" href="/pubmed/8014369">Pseudophakic erythropsia.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Bennett LW</span><br />
<span class="medgenPMjournal">J Am Optom Assoc</span>
1994 Apr;65(4):273-6.
<span class="bold">PMID: </span><a href="/pubmed/8014369" target="_blank">8014369</a></div>
<div class="nl"><a target="_blank" href="/pubmed/3488118">Dyschromatopsia following cataract surgery.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Jordan DR,
Valberg JD</span><br />
<span class="medgenPMjournal">Can J Ophthalmol</span>
1986 Jun;21(4):140-3.
<span class="bold">PMID: </span><a href="/pubmed/3488118" target="_blank">3488118</a></div>
<div class="nl"><a target="_blank" href="/pubmed/4539087">Glaucopsia--blue-grey vision.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Jones WT,
Kipling MD</span><br />
<span class="medgenPMjournal">Br J Ind Med</span>
1972 Oct;29(4):460-1.
doi: 10.1136/oem.29.4.460.
<span class="bold">PMID: </span><a href="/pubmed/4539087" target="_blank">4539087</a><a href="/pmc/articles/PMC1069461" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Cone%20dystrophy%204%22%20AND%20Therapy%2Fbroad%5Bfilter%5D%20%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (128)</a></div><h3 class="subhead">Prognosis</h3>
<div class="nl"><a target="_blank" href="/pubmed/38309476">A Retrospective Longitudinal Study of 460 Patients with ABCA4-Associated Retinal Disease.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Fenner BJ,
Whitmore SS,
DeLuca AP,
Andorf JL,
Daggett HT,
Luse MA,
Haefeli LM,
Riley JB,
Critser DB,
Wilkinson ME,
Dumitrescu AV,
Drack AV,
Boyce TM,
Russell JF,
Binkley EM,
Sohn EH,
Russell SR,
Boldt HC,
Mullins RF,
Tucker BA,
Scheetz TE,
Han IC,
Stone EM</span><br />
<span class="medgenPMjournal">Ophthalmology</span>
2024 Aug;131(8):985-997.
Epub 2024 Feb 1
doi: 10.1016/j.ophtha.2024.01.035.
<span class="bold">PMID: </span><a href="/pubmed/38309476" target="_blank">38309476</a><a href="/pmc/articles/PMC11398085" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/33691693">Whole-exome sequencing in 168 Korean patients with inherited retinal degeneration.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Ma DJ,
Lee HS,
Kim K,
Choi S,
Jang I,
Cho SH,
Yoon CK,
Lee EK,
Yu HG</span><br />
<span class="medgenPMjournal">BMC Med Genomics</span>
2021 Mar 10;14(1):74.
doi: 10.1186/s12920-021-00874-6.
<span class="bold">PMID: </span><a href="/pubmed/33691693" target="_blank">33691693</a><a href="/pmc/articles/PMC7945660" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/32037395">Copy-number variation contributes 9% of pathogenicity in the inherited retinal degenerations.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Zampaglione E,
Kinde B,
Place EM,
Navarro-Gomez D,
Maher M,
Jamshidi F,
Nassiri S,
Mazzone JA,
Finn C,
Schlegel D,
Comander J,
Pierce EA,
Bujakowska KM</span><br />
<span class="medgenPMjournal">Genet Med</span>
2020 Jun;22(6):1079-1087.
Epub 2020 Feb 10
doi: 10.1038/s41436-020-0759-8.
<span class="bold">PMID: </span><a href="/pubmed/32037395" target="_blank">32037395</a><a href="/pmc/articles/PMC7272325" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/26780318">Screening of ABCA4 Gene in a Chinese Cohort With Stargardt Disease or Cone-Rod Dystrophy With a Report on 85 Novel Mutations.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Jiang F,
Pan Z,
Xu K,
Tian L,
Xie Y,
Zhang X,
Chen J,
Dong B,
Li Y</span><br />
<span class="medgenPMjournal">Invest Ophthalmol Vis Sci</span>
2016 Jan 1;57(1):145-52.
doi: 10.1167/iovs.15-18190.
<span class="bold">PMID: </span><a href="/pubmed/26780318" target="_blank">26780318</a></div>
<div class="nl"><a target="_blank" href="/pubmed/17032466">Retinitis pigmentosa.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Hamel C</span><br />
<span class="medgenPMjournal">Orphanet J Rare Dis</span>
2006 Oct 11;1:40.
doi: 10.1186/1750-1172-1-40.
<span class="bold">PMID: </span><a href="/pubmed/17032466" target="_blank">17032466</a><a href="/pmc/articles/PMC1621055" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Cone%20dystrophy%204%22%20AND%20Prognosis%2Fbroad%5Bfilter%5D%20%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (184)</a></div><h3 class="subhead">Clinical prediction guides</h3>
<div class="nl"><a target="_blank" href="/pubmed/37775373">Color Vision in the Mountains.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Lankford HV,
Hovis JK</span><br />
<span class="medgenPMjournal">Wilderness Environ Med</span>
2023 Dec;34(4):610-617.
Epub 2023 Sep 27
doi: 10.1016/j.wem.2023.08.003.
<span class="bold">PMID: </span><a href="/pubmed/37775373" target="_blank">37775373</a></div>
<div class="nl"><a target="_blank" href="/pubmed/34937251">Clinically relevant colour album test for the colour defective medical student.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Singh K,
Gotmare ND,
Bhattacharyya M</span><br />
<span class="medgenPMjournal">Indian J Ophthalmol</span>
2022 Jan;70(1):261-265.
doi: 10.4103/ijo.IJO_1696_21.
<span class="bold">PMID: </span><a href="/pubmed/34937251" target="_blank">34937251</a><a href="/pmc/articles/PMC8917595" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/33691693">Whole-exome sequencing in 168 Korean patients with inherited retinal degeneration.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Ma DJ,
Lee HS,
Kim K,
Choi S,
Jang I,
Cho SH,
Yoon CK,
Lee EK,
Yu HG</span><br />
<span class="medgenPMjournal">BMC Med Genomics</span>
2021 Mar 10;14(1):74.
doi: 10.1186/s12920-021-00874-6.
<span class="bold">PMID: </span><a href="/pubmed/33691693" target="_blank">33691693</a><a href="/pmc/articles/PMC7945660" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/32037395">Copy-number variation contributes 9% of pathogenicity in the inherited retinal degenerations.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Zampaglione E,
Kinde B,
Place EM,
Navarro-Gomez D,
Maher M,
Jamshidi F,
Nassiri S,
Mazzone JA,
Finn C,
Schlegel D,
Comander J,
Pierce EA,
Bujakowska KM</span><br />
<span class="medgenPMjournal">Genet Med</span>
2020 Jun;22(6):1079-1087.
Epub 2020 Feb 10
doi: 10.1038/s41436-020-0759-8.
<span class="bold">PMID: </span><a href="/pubmed/32037395" target="_blank">32037395</a><a href="/pmc/articles/PMC7272325" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/30578497">Rod Monochromatism (Achromatopsia).</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Tsang SH,
Sharma T</span><br />
<span class="medgenPMjournal">Adv Exp Med Biol</span>
2018;1085:119-123.
doi: 10.1007/978-3-319-95046-4_24.
<span class="bold">PMID: </span><a href="/pubmed/30578497" target="_blank">30578497</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Cone%20dystrophy%204%22%20AND%20Clinical%20prediction%20guides%2Fbroad%5Bfilter%5D%20%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (336)</a></div></div>
</div>
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<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Recent_systematic_reviews">Recent systematic reviews</h1><a sid="104" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln">
<div class="nl"><a target="_blank" href="/pubmed/27162253">Consistency of secondary colour vision tests in transport industries.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Bailey KGH,
Carter T</span><br />
<span class="medgenPMjournal">Occup Med (Lond)</span>
2016 Jun;66(4):268-275.
doi: 10.1093/occmed/kqw012.
<span class="bold">PMID: </span><a href="/pubmed/27162253" target="_blank">27162253</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Cone%20dystrophy%204%22%20AND%20systematic%5Bsb%5D%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (1)</a></div></div>
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<h2 class="offscreen_noflow">Supplemental Content</h2>
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<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Table_of_contents">Table of contents</h1><a sid="113" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><ul id="my-toc"></ul></div>
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<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Genetic_Testing_Registry">Genetic Testing Registry</h1><a sid="106" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><ul><li><a href="/gtr/tests?term=C2751308%5bDISCUI%5d&amp;filter=method%3A2%5F8" target="_blank">Deletion/duplication analysis (16)</a></li>
<li><a href="/gtr/tests?term=C2751308%5bDISCUI%5d&amp;filter=method%3A2%5F7" target="_blank">Sequence analysis of the entire coding region (22)</a></li>
<li><a href="/gtr/tests?term=C2751308%5bDISCUI%5d&amp;filter=method%3A2%5F19" target="_blank">Targeted variant analysis (3)</a></li>
<li class="portletSeeAll portletSeeAllPad"><total><a href="/gtr/tests?term=C2751308%5bDISCUI%5d" target="_blank">See all (24)</a></total></li>
</ul></div>
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<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Clinical_resources">Clinical resources</h1><a sid="119" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><ul><li><a href="https://www.omim.org/search?index=entry&amp;start=1&amp;limit=10&amp;sort=score%20desc&amp;field=number&amp;search=613093" target="_blank">OMIM</a></li><li><a href="https://clinicaltrials.gov/search?cond=Cone%20dystrophy%204" target="_blank">ClinicalTrials.gov</a></li></ul></div>
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<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Practice_guidelines">Practice guidelines</h1><a sid="121" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><ul class="a_poppers"><li><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=(cone%20dystrophy%204)%20AND%20(%22english%20and%20humans%22%5BFilter%5D)%20AND%20(%20(%22practice%20guideline%22%5BFilter%5D)%20OR%20(practice*%5Btitl%5D%20AND%20(guideline%5Btitl%5D%20OR%20parameter%5Btitl%5D%20OR%20resource%5Btitl%5D%20OR%20bulletin%5Btitl%5D%20OR%20best%5Btitl%5D))%20OR%20(genetic*%5Btitl%5D%20AND%20(evaluation%5Btitl%5D%20OR%20counseling%5Btitl%5D%20OR%20screening%5Btitl%5D%20OR%20test*%5Btitl%5D))%20OR%20(clinical%5Btitl%5D%20AND%20((expert%5Btitl%5D%20AND%20consensus%5Btitl%5D)%20OR%20utility%5Btitl%5D%20OR%20guideline*%5Btitl%5D))%20OR%20(management%5Btitl%5D%20AND%20(clinical%5Btitl%5D%20OR%20diagnos*%5Btitl%5D%20OR%20recommendation%5Btitl%5D%20OR%20pain%5Btitl%5D%20OR%20surveillance%5Btitl%5D%20OR%20emergency%5Btitl%5D%20OR%20guideline*%5Btitl%5D%20OR%20therap*))%20OR%20(treatment%5Btitl%5D%20AND%20((evaluation%5Btitl%5D%20AND%20diagnosis%5Btitl%5D)%20OR%20(assessment%5Btitl%5D%20AND%20prevention%5Btitl%5D)%20OR%20therap*))%20OR%20(Diagnos*%5Btitl%5D%20AND%20(prenatal%5Btitl%5D%20OR%20treatment%5Btitl%5D%20OR%20follow-up%5Btitl%5D%20OR%20statement%5Btitl%5D%20OR%20criteria%5Btitl%5D%20OR%20newborn%5Btitl%5D%20OR%20differential%5Btitl%5D%20OR%20neonatal%5Btitl%5D%20OR%20neonate%5Btitl%5D))%20OR%20(guideline*%5Btitl%5D%20AND%20(pharmacogenetic*%5Btitl%5D%20OR%20recommendation%5Btitl%5D%20OR%20therap*%5Btitl%5D%20OR%20evidence-based%5Btitl%5D%20OR%20consensus%5Btitl%5D%20OR%20(technical%5Btitl%5D%20AND%20standard*%5Btitl%5D)%20OR%20(molecular%5Btitl%5D%20AND%20testing%5Btitl%5D)))%20OR%20(risk%5Btitl%5D%20AND%20assessment%5Btitl%5D)%20OR%20(recommendation*%5Btitl%5D%20AND%20(statement%5Btitl%5D%20OR%20Evidence-based%5Btitl%5D%20OR%20Consensus%5Btitl%5D))%20OR%20(care%20AND%20((Patient%5Btitl%5D%20AND%20standard*%5Btitl%5D)%20OR%20primary%5Btitl%5D%20OR%20psychosocial%5Btitl%5D))%20OR%20(Health%5Btitl%5D%20AND%20supervision%5Btitl%5D)%20OR%20(statement%5Btitl%5D%20AND%20(policy%5Btitl%5D%20OR%20position%5Btitl%5D%20OR%20Consensus%5Btitl%5D))%20OR%20(pharmacogenetics%5Btitl%5D%20AND%20(Dosing%5Btitl%5D%20OR%20therap*%5Btitl%5D%20OR%20genotype*%5Btitl%5D%20OR%20drug*%5Btitl%5D))%20OR%20(Chemotherapy%5Btitl%5D%20AND%20decision*%5Btitl%5D)%20OR%20(screening%5Btitl%5D%20AND%20(newborn%5Btitl%5D%20OR%20neonat*%5Btitl%5D%20OR%20detection%5Btitl%5D%20OR%20diagnos*%5Btitl%5D))%20OR%20(criteria%5Btitl%5D%20OR%20genotype*%5Btitl%5D)%20)%20NOT%20(%22Case%20reports%22%5BPublication%20type%5D%20OR%20%22clinical%20study%22%5BPublication%20Type%5D%20OR%20%22randomized%20controlled%20trial%22%5BPublication%20Type%5D)" title="PubMed search">PubMed</a><div class="help-popup">See practice and clinical guidelines in PubMed. The search results may include broader topics and may not capture all published guidelines. See the <a href="/medgen/docs/faq/" title="Frequently asked questions" target="_blank">FAQ</a> for details.</div></li></ul><h3 class="subhead">Curated</h3><ul class="a_poppers"><li><a target="_blank" href="/pmc/articles/PMC3110037/">EuroGentest, 2011</a><div>Clinical utility gene card for: achromatopsia</div></li></ul></div>
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<div class="portlet_content ln"><ul><li><a href="http://www.omim.org/search?index=entry&amp;start=1&amp;limit=10&amp;sort=score%20desc&amp;field=number&amp;search=600827" target="_blank">OMIM</a></li><li><a href="/clinvar/?term=5146[geneid]" target="_blank">View PDE6C variations in ClinVar</a></li><li><a href="/nuccore/291084806" target="_blank">RefSeqGene</a></li><li><a href="https://catalog.coriell.org/Search?q=613093" target="_blank">Coriell Institute for Medical Research</a></li></ul></div>
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<div class="portlet_content ln"><ul><li><a href="http://www.diseaseinfosearch.org/Cone+dystrophy+4/8036" target="_blank">Genetic Alliance</a></li><li><a href="https://www.malacards.org/card/cone_dystrophy_4" target="_blank">MalaCards</a></li><li><a href="https://vsearch.nlm.nih.gov/vivisimo/cgi-bin/query-meta?v:project=medlineplus&amp;query=Cone%20dystrophy%204" target="_blank">MedlinePlus</a></li><li><a href="https://rarediseases.info.nih.gov/diseases/16449/disease" target="_blank">NCATS Office of Rare Diseases Research (GARD)</a></li></ul></div>
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<a class="brieflinkpopperctrl" href="/gene?LinkName=medgen_gene_diseases&amp;from_uid=416518" ref="log$=recordlinks">Gene</a>
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<a class="brieflinkpopperctrl" href="/gtr/tests?term=C2751308[DISCUI]" ref="log$=recordlinks">GTR</a>
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<div class="brieflinkpop offscreen_noflow">Links to PubMed based on citations in GeneReviews and Medical Genetics Summaries</div>
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<a class="brieflinkpopperctrl" href="/pubmed?LinkName=medgen_pubmed_genereviews&amp;from_uid=416518" ref="log$=recordlinks">PubMed (GeneReviews)</a>
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<a class="brieflinkpopperctrl" href="/pubmed?LinkName=medgen_pubmed_omim&amp;from_uid=416518" ref="log$=recordlinks">PubMed (OMIM)</a>
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<a class="htb ralinkpopperctrl" ref="log$=activity&amp;linkpos=1" href="/portal/utils/pageresolver.fcgi?recordid=67d2d80c84f3725e596d59eb">Cone dystrophy 4</a>
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