Abstract
Pellucid marginal corneal degeneration (PMCD) is an ectatic corneal disorder characterized by a peripheral, noninflammatory band of thinning of the inferior cornea. This condition often is misdiagnosed with keratoconus, with which it shares several clinical, videotopographic, and histologic aspects. Furthermore, as with keratoconus, hydrops and spontaneous corneal perforation can occur. We report the case of a 56-year-old man with confirmed PMCD, emphasizing the diagnostic approach, the disease follow-up, and its complication in spontaneous acute corneal hydrops. Finally, regarding this case, authors collect the clinical and videotopographic characteristics of PMCD and discuss the different therapeutic options.
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