Computerized analysis of corneal topography as an aid in fitting contact lenses after radial keratotomy.
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.
McDonnell
P J
PJ
Doheny Eye Institute, University of Southern California School of Medicine, Los Angeles 90033.
Garbus
J J
JJ
Caroline
P
P
Yoshinaga
P D
PD
D003261:Contact Lenses; D003315:Cornea / Q000473:pathology*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D007646:Keratotomy, Radial / Q000009:adverse effects*; D011182:Postoperative Care; D012030:Refractive Errors / Q000209:etiology / Q000628:therapy