Average, inferior, and superior summary parameters were used to detect the thinning. There were 60 patients ... control group having thicker central corneal thickness (CCT) compared with the ...

Pellucid Marginal Degeneration. Classic pellucid marginal degeneration (PMD) has clinical features consisting of a zone of inferior corneal thinning within 2-3 mm of the inferior limbus.

Theoretically, this leaves most of the corneal nerves intact and should lead to superior post-operative preservation of corneal sensitivity than previous photorefractive procedures. SMILE was also ...