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Computerized analysis of corneal topography as an aid in fitting contact lenses after radial keratotomy
P J McDonnell1, J J Garbus, P Caroline
1Doheny Eye Institute, University of Southern California School of Medicine, Los Angeles 90033.
Ophthalmic Surgery
|January 1, 1992
Abstract:
To select an appropriate base curve to use in fitting a contact lens in 16 eyes of 10 patients following radial keratotomy, we used a videokeratoscope that generates a 32-ring image, covering the entire cornea, to measure the midperipheral corneal curvature. We then based contact-lens selection on the curvature 3.5 mm superior to the visual axis. Photographic documentation of fluorescein patterns and subjective reports of the patients indicated a successful fitting in all cases.