Ectatic corneal disorders, such as keratoconus, pellucid marginal degeneration, and keratoglobus, are considered contraindications to corneal refractive surgery. Corneal topography is of great ...

Corneal topography is an indispensable tool and plays ... although these are often not helpful in diagnosing pellucid marginal degeneration, which is characterized by a classic pattern of against ...