Predictability of radial keratotomy after excimer laser photorefractive keratectomy.

Purpose: To evaluate the results of radial keratotomy (RK) after photorefractive keratectomy (PRK).
Setting: London Centre for Refractive Surgery.
Methods: This study comprised six eyes having RK enhancement after PRK. Outcome measures were the effect of the incisions on post-PRK haze and best corrected visual acuity (BCVA), predictability of the result on already flattened corneas, and the validity of standard radial keratotomy (RK) nomograms. All PRKs were done when refraction was stable with one of two VISX lasers: the Twenty-Twenty or Star. Mean follow-up was 14 months.
Results: All eyes had further corneal flattening. The standard RK nomograms were deemed appropriate. There was no loss of BCVA because of aggravated haze of irregular astigmatism.
Conclusion: Radial keratotomy after PRK proved safe, economical, and effective after PRK in six eyes.