Retreatment of central islands after photorefractive keratectomy

Abstract
In this study, 22 eyes retreated for central islands were retrospectively analyzed. All initial corrections and retreatments were performed with the Chiron Technolas Keracor 116 laser. Results: A marked decrease in symptoms was observed in almost all cases. Topographic analysis confirmed these results but revealed persistence of minimal islands in several cases. Retreatment of central islands also induced a small myopic correction. Using a 2.5 mm zone, the mean induced refractive effect was 0.21 diopter of myopic correction per diopter of retreatment. Conclusion: Retreatment of central islands appeared safe, was relatively easy, and provided good results with a rapid recovery. **Reprint requests to Dr. Gilles Lafond 2875 Boulevard Laurier Sainte-Foy,Bureau 200, Quebec, Canada. Accepted October 26, 1998. © 1999 by Lippincott Williams & Wilkins, Inc....