Abstract
Background and Objectives: LASIK (laser in situ keratomileusis) is the most common referactive surgery especially for myopia and retinal nerve fiber layer damage may be occure due to increased intraocular pressure during making the flap. To evaluate the effect of on retinal nerve fiber layer (RNFL) thickness measurements obtained with OCT (optical coherence to mography)
Material and Methods: 28 eyes (14 patients) undergoing LASIK were enrolled in this study. OCT examination was performed 1 week prior to and 4 week after LASIK surgery. Intraocular pressur was normal at all preoperative and post operative examinations. Mean RNFL thickness measurements along the whole circle and the four sectors were obtained by OCT and compared with paired t test.
Results: Mean patient age was 30 3.5 (SD) years (range, 24 to 36 years). Mean preoperative spherical equvalant refractive errors was – 4.75 2 diopters (D) (range, - 1.75 to – 9.5D) Mean ablation depth was 72.5 25.5 (rang, 30 to 118 ). Mean RNFL thicknesses obtained by OCT were unchanged 1 week and 4 weeks after LASIK (p > 0.05, for all comparsions, paired t test)
Conclusions: LASIK does not affect RNFL thickness.