PELLUCID MARGINAL DEGENERATION WITH SUPERIOR CORNEAL THINNING

Purpose. Pellucid marginal degeneration is a noninflammatory thinning disorder typically involving the inferior cornea. We describe a patien t with superior corneal thinning similar to classic pellucid marginal degeneration. Methods, An 80-year-old man was evaluated for high astig matism. Results, The right superior cornea had a prominent band of thi nning with ectasia. Both inferior corneas had characteristic zones of thinning without inflammation. Conclusions, Superior pellucid marginal corneal degeneration should be considered in the differential diagnos is of superior corneal ectatic disorders.