Abstract
Abstract: :
Purpose: To determine the incidence of glare, halos, and difficulty with night vision in patients before and after laser in situ keratomileusis (LASIK). Methods:147 patients who underwent bilateral LASIK were evaluated preoperatively, at 1 month (N=58), and 3 months (N=40) postoperatively through a quality of vision questionnaire. Results:Thirty-eight, 38, and 43% of patients reported some amount of glare preoperatively, at 1 month and 3 months postoperatively, respectively. Out of these patients, 0% and 6% reported severe glare at 1 and 3 months, respectively.Thirty-two, 43, and 43% reported some amount of halos preoperatively, at 1 month and 3 months postoperatively. Out of these patients, 0% and 6% reported severe halos at 1 and 3 months, respectively. Forty-eight, 36, and 25% of patients reported some amount of difficulty with night vision preoperatively, at 1 month and 3 months postoperatively. Out of these patients, 20 and 10% reported severe difficulty with night vision at 1 and 3 months, respectively. The incidence of severe glare, halos, and difficulty with night vision before LASIK was 0.68%, 0.68% and 3.4%, respectively. The incidence of severe glare, halos, and difficulty with night vision 3 months after LASIK was 2.5 % in each group. Conclusion:Glare and halos before and after LASIK are common. However, severe symptoms are uncommon. Difficulties with night vision seemed to improve after LASIK.
Keywords: 369 cornea: clinical science • 550 refractive surgery: optical quality • 548 refractive surgery: LASIK