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Computerized corneal topography of furrow corneal degeneration
1Department of Ophthalmology, Western Galilee-Nahariya Medical Center, Nahariya, Israel.
Purpose:
To analyze the corneal topography features of furrow corneal degeneration.
Setting:
Western Galilee-Nahariya Medical Center, Nahariya, Israel.
Methods:
Computer-assisted corneal topography analysis of two patients with furrow corneal degeneration was obtained and studied.
Results:
The typical appearance of circumferential peripheral thinning in the lucid interval between the limbus and corneal arcus indicated a clinical diagnosis of furrow corneal degeneration. The corneal topography maps showed central flattening and excentric localized steepening. A step of 1.50 diopters was seen central to the peripheral furrow.
Conclusion:
Keratometry and noncomputerized keratoscopy are insufficient methods of evaluating the topographic features of furrow corneal degeneration. Computer-assisted corneal topography showed steepening and central flattening that may be attributed to the thinned peripheral circumference.