Title: An Analysis of Regression After Laser in Situ Kerato Mileusis for Treatment of Myopia
Abstract: Objective To evaluate the regression relevant reasons of laser in situ keratomileusis(LASIK) for treatment of myopia. Methods Seven hundred and nighty-eight eyes of 486 patients with myopia who received LASIK were studied. They were divided into 2 groups according to preoperative diopters(-1.25~-6.25D in 492 eyes,-6.25~-20.00 D in 306 eyes).The mean follow-up was 48 months,and the results of the postoperative visual acuity,refractive diopter,corneal thickness and the diameter of the ablation zone were statistically analyzed. Results (1)A group: There were 51 eyes(10.37%,post-operative diopter≥-1.00D),the mean postoperative corneal thickness was(486.58±35.46) μm(P0.01 in comparison with that of the normal operative eyes and the mean post-operative diopter was -1.35±0.28 D. (2)B group:There were 114 eyes (37.25%),the mean post-operative corneal thickness was 441.38±24.53 μm(P0.05 in comparison with that of the normal operative eyes),the mean post-operative diopter was-1.95±1.05D. Conclusions In allcases with small laser ablation diameter and the thiner pre-operative corneal thickness of high myopia, the refractive regression is easy to occur after the surgery.
Publication Year: 2004
Publication Date: 2004-01-01
Language: en
Type: article
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