Cornea/Refractive Surgery Quiz 7
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Figure 1
Figures 1-3. Anterior segment photographs of 3 different individuals with the same corneal condition. |
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Figure 2
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Figure 3
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Questions and Answers | |
1. What is your diagnosis? Answer: Discrete milky white, granular deposits in the anterior stroma are characteristic of granular dystrophy. 2. Will this process extend to involve the entire cornea? Answer: No, granular dystrophy does not extend to the limbus. 3. What is the inheritance pattern of this condition? Answer: Autosomal dominant. 4. When does this condition become evident? Answer: The disease is evident early in life, but patients remain asymptomatic for years. 5. What are the symptoms? Answer: Slowly progressive visual loss, rarely below 20/200. Recurrent erosions are rare. 6. What would light microscopy SHOW in this condition? Answer: Clumps of hyaline material concentrated in the anterior stroma that stains well with Masson's trichrome stain. 7. What treatment would you recommend? Answer: In the early stages granular dystrophy no treatment is needed. When visual acuity is limited, penetrating keratoplasty offers a relatively good prognosis though the disease may recur after many years. | |
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