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Corneal Dystrophies
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<span>Corneal Dystrophies</span>
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<p>Corneal dystrophies are eye diseases that involve changes in the cornea (the clear front layer of your eye). These diseases usually run in families.</p><p>Most corneal dystrophies are <strong>progressive</strong> — they get worse over time. Some cause vision loss or pain, but some have no symptoms. The only way to know for sure if you have a corneal dystrophy is to get a comprehensive dilated eye exam. Your eye doctor will use a microscope with a bright light attached (called a slit lamp) to check your eyes for signs of corneal dystrophies.</p>
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Keratoconus
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<p>Keratoconus is usually diagnosed in teens and young adults. It causes the middle and lower parts of the cornea to get thinner over time. While a normal cornea has a rounded shape, a cornea with keratoconus can bulge outward and become a cone shape. This different cornea shape can cause vision problems.</p><p>Symptoms of keratoconus include:</p><ul><li>Itchy eyes</li><li>Double vision</li><li>Blurry vision</li><li>Nearsightedness (when far-away objects look blurry)</li><li>Astigmatism (when things look blurry or distorted)</li><li>Sensitivity to light</li></ul><p>As keratoconus gets worse, it may cause eye pain and more serious vision problems.</p><p>Most people with keratoconus can correct their vision problems by wearing glasses, soft contact lenses, or special hard contact lenses that change the shape of the cornea. Your doctor may also recommend a procedure called corneal cross-linking to strengthen your cornea. If your keratoconus causes severe corneal scarring or you have trouble wearing contact lenses, you may need a corneal transplant.</p>
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Did you know?
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<p>Keratoconus is the most common corneal dystrophy in the United States</p>
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<p>It affects 1 in 2,000 Americans</p>
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Fuchs’ dystrophy
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<p>Most people with Fuchs’ dystrophy start to have symptoms around age 50 to 60. This disease makes a type of cornea cells (called endothelial cells) stop working. When these cells stop working, the cornea swells and gets thicker. These cornea changes can cause vision problems.</p><p>Symptoms of Fuchs’ dystrophy include:</p><ul><li>Blurry vision that’s worse in the morning and gets better later in the day</li><li>Glare and halos in your vision that make it hard to see things at night or in low light</li><li>Cloudy corneas</li><li>Sensitivity to light</li></ul><p>As Fuchs’ dystrophy gets worse, it may cause eye pain and more serious vision problems.</p><p>Treatments for Fuchs’ dystrophy include eye drops, ointments, and special contact lenses to help reduce corneal swelling. If your disease is more severe, you may need a corneal transplant.</p>
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Lattice dystrophy and map-dot-fingerprint dystrophy
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<p>Lattice dystrophy usually begins in childhood. It causes material to build up on the cornea in a lattice (grid) pattern. As the material builds up, it can cause vision problems.</p><p>Map-dot-fingerprint dystrophy (also called epithelial basement membrane dystrophy) is most common in adults ages 40 to 70. It causes a layer of the cornea to develop folds that can look like continents on a map, clusters of dots, or small fingerprints. Sometimes these folds cause vision problems, which may come and go over time.</p><p>Lattice dystrophy and map-dot-fingerprint dystrophy can both cause <strong>corneal erosion</strong>, when the outer layer of the cornea isn’t attached to the eye correctly and starts to erode (wear away).</p><p>Symptoms of corneal erosion include:</p><ul><li>Eye pain that’s worse in the morning and gets better later in the day</li><li>Feeling like there’s something in your eye</li><li>Blurry vision</li><li>Sensitivity to light</li><li>Watery eyes</li></ul><p>Treatments include eye drops, ointments, and special eye patches or contact lenses that stop your eyelid from rubbing against your cornea. If you have severe corneal erosions or corneal scarring, you may need a surgical treatment, like laser eye surgery or a corneal transplant.</p>
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<p class="views-element-container c-last-updated" id="block-views-block-nei-last-updated-block-1"><strong>Last updated:</strong> December 6, 2024</p>
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