Pellucid marginal degeneration with superior corneal thinning.
PURPOSE: Pellucid marginal degeneration is a noninflammatory thinning disorder typically involving the inferior cornea. We describe a patient with superior corneal thinning similar to classic pellucid marginal degeneration. METHODS: An 80-year-old man was evaluated for high astigmatism. RESULTS: The right superior cornea had a prominent band of thinning with ectasia. Both inferior corneas had characteristic zones of thinning without inflammation. CONCLUSIONS: Superior pellucid marginal corneal degeneration should be considered in the differential diagnosis of superior corneal ectatic disorders.
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