Pellucid marginal degeneration with superior corneal thinning.
OBJECTIVE
Pellucid marginal degeneration is a noninflammatory thinning disorder typically involving the inferior cornea. We describe a patient with superior corneal thinning similar to classic pellucid marginal degeneration.


METHODS
An 80-year-old man was evaluated for high astigmatism.


RESULTS
The right superior cornea had a prominent band of thinning with ectasia. Both inferior corneas had characteristic zones of thinning without inflammation.


CONCLUSIONS
Superior pellucid marginal corneal degeneration should be considered in the differential diagnosis of superior corneal ectatic disorders.
Bower
K S
KS
Department of Ophthalmology, University of Pittsburgh Medical Center, Pennsylvania 15213, USA.
Dhaliwal
D K
DK
Barnhorst
D A
DA
Warnicke
J
J
D000368:Aged; D000369:Aged, 80 and over; D001251:Astigmatism / Q000175:diagnosis / Q000628:therapy; D003315:Cornea / Q000473:pathology*; D003317:Corneal Dystrophies, Hereditary / Q000175:diagnosis*; D003937:Diagnosis, Differential; D005139:Eyeglasses; D005500:Follow-Up Studies; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008297:Male; D014792:Visual Acuity