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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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Fleischer ring is characteristic of -
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The correct answer is  In keratoconus slit lamp examination may show thinning and ectasia of central cornea, opacity at the apex and Fleischer's ring at the base of cone, folds in Descemet's and Bowman's membranes. Very fine, veical, deep stromal striae (Vogt lines) which disappear with external pressure on the globe are peculiar feature.Reference:Comprehensive ophthalmology,AK Khurana,4th edition,page no.119