5 Year outcome of Laser in Situ Keratomileusis for Myopia in Mongolians

Abstract

Background: Laser-assisted in situ keratomileusis (LASIK) is the most common ophthalmologic surgery to correct myopia [1-4]. Over thirty years, tremendous studies have been conducted and revealed that 99% of patients could achieve better than 20/40 uncorrected visual acuity after the surgical procedure. Aim: To compare the pre and post-operative outcomes of Mongolian patients who had LASIK surgery. Materials and Methods: We conducted hospital based prospective study. A total of 176consecutive patients who underwent conventional LASIK were examined for the correction of myopia. Study participants were followed for 5 years after surgery. Results: The mean age was 29.89±6.42 years. 145 patients were female and 31 were male. The mean UCVA was 0.10±0.09 Decimal and the mean BCVA was 0.81±0.16 Decimal. Preoperative analysis showed that UCVA and BCVA were significantly different in mild, moderate, and high myopia groups. Especially, patients with mild myopia had higher acuity compared to other groups (0.21±0.13 and 0.86±0.12, respectively). Moreover, the manifest spherical equivalent the of mild myopia group also had significantly lower compared to the other two groups (-1.73±1.17). Conclusion: Our results support the view that preoperative clinical examination is an extremely important part of the LASIK procedure to improve refractive predictability.