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为了评价准分子激光屈光性角膜切削术治疗近视、近视散光的疗效。应用美国ＶＩＳＸ２０／２０型准分子激光仪，采用多削区治疗近视屈光度为－１．７５～－１６．００Ｄ的患者，观察２年以上，按术前球镜屈光度分为二组，Ⅰ组为－１．７５～６．００Ｄ（１２１眼），Ⅱ组为－６．２５～－１６．００Ｄ（８６眼）。术后２年裸眼视力≥０．５者在Ⅰ、Ⅱ组中分别为９５．９％、７０．９％，≥１．０者分别为７３．６％、３４．９％。Ⅰ、Ⅱ组中屈光度在±１．００Ｄ以内者分别为９１．７％、６２．８％。角膜上皮下混浊０度在Ⅰ、Ⅱ组中分别为８７．６％、６６．３％，２级以上分别为０、１．２％。眼压均正常。结论：准分子激光屈光性角膜切削术对低、中、高度近视、近视散光均取得良好的远期效果，但对低、中度近视效果更佳，对高度近视预测性较差。
In order to evaluate the efficacy of excimer laser refractive keratectomy for the treatment of myopia and myopic astigmatism. Application of the United States VISX20 / 20 excimer laser, the use of multi-cutting area for the treatment of myopia in patients with refraction of -1.75 ~ -16.00D, observed more than 2 years, according to preoperative spherical refraction is divided into two groups, Ⅰ group -1.75 ~ 6.00D (121 eyes), group Ⅱ was -6.25 ~ -16.00D (86 eyes). Two years after uncorrected visual acuity ≥0.5 in group Ⅰ and Ⅱ, 95.9%, 70.9% and ≥1.0 were 73.6% and 34.9% respectively. In groups I and II, the refractivity was 91.7% and 62.8% respectively within ± 1.00D. Corneal epithelial turbidity 0 degrees in Ⅰ, Ⅱ group were 87.6%, 66.3%, 2 levels were 0,1.2%. Intraocular pressure were normal. Conclusion: Excimer laser refractive keratectomy has good long-term effect on low, medium and high myopia and myopic astigmatism, but it has better effect on low and moderate myopia and poor predictability on high myopia.