Pellucid marginal degeneration

Pellucid marginal degeneration (PMD; keratotorus), is a degenerative corneal condition, often confused with keratoconus. It is typically characterized by a clear, bilateral thinning (ectasia) in the inferior and peripheral region of the cornea, although some cases affect only one eye. The cause of the disease remains unclear (idiopathic).

单词	Keratotorus
释义	Keratotorus 英语百科 Pellucid marginal degeneration Pellucid marginal degeneration (PMD; keratotorus), is a degenerative corneal condition, often confused with keratoconus. It is typically characterized by a clear, bilateral thinning (ectasia) in the inferior and peripheral region of the cornea, although some cases affect only one eye. The cause of the disease remains unclear (idiopathic).
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Keratotorus

Pellucid marginal degeneration