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Secondary laser in situ keratomileusis 1 year after primary LASIK for high myopia
A Ozdamar1, C Aras, H Bahçecioğlu
1Istanbul University, Eye Research Center, Turkey.
Purpose:
To report the results of the laser in situ keratomileusis (LASIK) using a second-cut hinged corneal flap to treat regression 1 year after primary LASIK for high myopia.
Setting:
Istanbul University, Eye Research Center, Istanbul, Turkey.
Methods:
Six eyes of 4 patients who had a mean myopic regression of -6.20 diopters (D) +/- 1.10 (SD) 1 year after primary LASIK were retreated with secondary LASIK performed using the Automated Corneal Shaper (Chiron Vision) and a 193 nm excimer laser (Chiron Technolas, Keracor 116). Fluence was 130 mJ/cm2 and the repetition rate, 10 Hz.
Results:
Mean follow-up was 12.16 +/- 0.75 months. At the last follow-up, the mean spherical equivalent was -0.18 +/- 0.77 D (range +0.12 to -1.25 D). Two eyes (33.3%) remained within +/- 0.50 D of emmetropia; 5 eyes (83.3%) were within +/- 1.00 D of emmetropia. No patient lost best spectacle-corrected visual acuity. No complications occurred such as detachment of the former corneal flap and rolling, irregularity, or tearing of the new corneal flap.
Conclusion:
Secondary LASIK was an effective, safe method to treat regression after primary LASIK for high myopia.