Laser in situ keratomileusis to correct XXXX after keratoplasty.

@entity940 @entity1 @entity1714 @entity2516
PURPOSE: To assess the safety and effectiveness of excimer laser in situ keratomileusis (LASIK) to correct refractive @entity1714 , @entity940 , or both after keratoplasty. SETTING: Eye Clinic Day Hospital, S  o Paulo, Brazil. METHODS: Twenty-two eyes that had previously had corneal transplantation were studied. Laser in situ keratomileusis was performed using the Chiron automated microkeratome and the VISX Twenty-Twenty B excimer laser. RESULTS: Mean follow-up after LASIK was 10.09 months +/- 3.87 (SD). The spherical equivalent refraction dropped from -4.55 +/- 3.66 D before LASIK to -0.67 +/- 1.24 D after surgery. At the last examination, 72.7% of @entity1 had a @entity2516 within +/- 1.00 D of emmetropia and 54.5% had uncorrected visual acuity of 20/40 or better. Vector analysis of astigmatic correction showed an index of success of 54.0%. Best spectacle-corrected visual acuity was unchanged in 8 cases, improved in 9, and decreased in 5. Significant endothelial cell loss, keratoplasty wound dehiscence, and other serious complications did not develop in any eye. CONCLUSION: The correction of @entity2516 with LASIK in postkeratoplasty @entity1 proved to be safe, effective, and predictable. Further studies with longer follow-up are needed to determine the method's clinical value.
