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目的:观察弧形、水平、反眉形切口在小切口非超声乳化白内障手术后角膜散光的变化。方法:将90例年龄相关性白内障患者(90眼)随机分为A组28例,B组29例,C组33例,均行小切口非超声乳化白内障手术,分别选择弧形、水平、反眉形切口,观察术前、术后3个月角膜散光及术后1周、1,3个月视力≥0.5眼数和手术源性散光的变化。结果:术后3个月手术源性散光和视力≥0.5眼数分别为:A组(2.21±0.61)D,20眼(71.42%);B组(1.15±0.44)D,28眼(96.55%);C组(0.45±0.12)D,26眼(78.78%)。结论:对术前散光>2 D、1~2 D、<1 D患者,分别采用弧形、水平、反眉形巩膜隧道切口,可校正术前已有散光,更有利术后视力提高。
Objective: To observe the change of corneal astigmatism after curved incision, horizontal incision and inverted - brow incision in small incision non - phacoemulsification cataract surgery. Methods: Ninety age-related cataract patients (90 eyes) were randomly divided into group A (28 cases), group B (29 cases) and group C (33 cases). All patients underwent cataract surgery using small incision non-phacoemulsification. Eyebrow incision, observed preoperative and postoperative corneal astigmatism 3 months after surgery and 1 week after surgery, 1,3 months visual acuity ≥ 0.5 eye count and surgical changes of astigmatism. Results: The number of astigmatism and visual acuity ≥ 0.5 at 3 months postoperatively were as follows: group A (2.21 ± 0.61) D, 20 eyes (71.42%), group B (1.15 ± 0.44) D, 28 eyes (96.55% ), C (0.45 ± 0.12) D, 26 eyes (78.78%). CONCLUSIONS: For patients with preoperative astigmatism of> 2 D, 1 ~ 2 D, and <1 D, arc-shaped, horizontal and inverted eyebrow scleral tunnel incisions can be used to correct preoperative astigmatism and improve visual acuity after surgery.