SUMMARY
We described a 47-year-old man with a noninflammatory bilateral corneal ectasia. Superior thinning was present between 11 and 2 hours, with a localized steep area coincident to the thinning. An edge of apparently non-affected cornea was observed adjacent to the limbus. No deposits, stress lines or deep neovascularization was observed. This case does not match classic descriptions such as keratoconus or pellucid marginal degeneration. Differential diagnosis among noninflammatory ectasia are discussed, focusing in the same-pathology theory.
Key Words:
Corneal ectasia; Keratoconus; Pellucid Marginal Degeneration; Corneal Stroma
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From the Department of Ophthalmology, Federal University of São Paulo (UNIFESP) Paulista School of Medicine (EPM), São Paulo Hospital, São Paulo, Brasil.
REFERENCES
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1CAMERON, J. A.; MAHMOOD, M. A. - Superior corneal thinning with pellucid marginal corneal degeneration. Am. J. Ophthalmol., 109 (4): 486-487, 1990.
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2ETZINE, S. - Corneal-thinning syndrome: keratoleptynsis. Ophthalmologica, 157: 263-7, 1969.
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3KRACHMER, J. H. - Pellucid Corneal Marginal Degeneration. Arch. Ophthalmol., 96: 1217-1221, 1978.
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4KAYAZAWA, F.; NISHIMURA, K.; KODAMA, Y. et al. - keratoconus with pellucid marginal corneal degeneration. Arch. Ophthalmol., 102: 895-896, 1984.
Publication Dates
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Publication in this collection
Oct 1995
