pellucid marginal corneal degeneration

pellucid mar·gi·nal cor·ne·al de·gen·er·a·tion

bilateral opacification and vascularization of the periphery of the cornea, progressing to formation of a gutter and ectasia.

pel·lu·cid mar·gi·nal cor·ne·al de·gen·er·a·tion

(pĕ-lū'sid mahr'ji-năl kōr'nē-ăl dĕ-jen'ĕr-ā'shŭn)
Bilateral thinning of the inferior cornea, progressing to formation of corneal ectasia.