Corneoscopy in Keratorefractive Surgery

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Abstract
Map topography of the cornea allows the surgeon to determine discrete areas of the corneal topography which contribute to astigmatism or refractive error. Microsurgical repair of these disparate corneal areas may be documented quantitatively. We present a method of corneal topography analysis using the corneascope and high resolution digitization analysis of the resultant photographs. Cold-plated steel balls of known radius of curvature are the calibration standards to develop the linear regression analysis presented. Data storage, acquisition, and comparison to subsequent photographs to determine minute topographical shifts is greatly facilitated by this new technique.

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