Abstract
Abstract: :
Purpose: To prospectively examine the efficacy, predictability and safety of LASIK enhancement after initial hyperopic LASIK. Methods: Sixteen eyes underwent hyperopic LASIK followed by retreatment using the VISX S2 Smoothscan excimer laser. The mean time to retreatment was 10 months. Uncorrected visual acuity (UCVA), manifest refraction, and best-spectacle corrected visual acuity (BSCVA) were evaluated three months after retreatment. The 16 eyes were grouped for analysis based on the refractive error prior to retreatment. Seven eyes were treated for residual hyperopia, 4 eyes for consecutive myopia, and 2 eyes for mixed astigmatism. Three eyes underwent enhancement to achieve monovision. Results: Residual hyperopia was corrected to a mean of +.125 + .48, and consecutive myopia was corrected to a mean of -.33 + .38. The eyes with mixed astigmatism were corrected to a mean of +.937 + .75 and those corrected for monovision were corrected to a mean of -1.83 + .88. All eyes but one were corrected to within 1 D of attempted correction. UCVA was 20/40 or better in 100% of eyes in which emmetropia was the preoperative goal. No eyes lost two or more lines of BSCVA, and no flap complications were seen. Conclusion: Retreatment of patients after LASIK for hyperopia, whether for residual hyperopia, consecutive myopia, mixed astigmatism, or desire for monovision, is effective, predictable, and safe.
Keywords: refractive surgery: LASIK