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目的研究3种白内障手术切口对术后早期散光的影响。方法150例(150只眼)老年性白内障患者随机分为A、B、C 3组,每组各50只眼,A组采用6 mm上方直线型巩膜隧道切口,B组采用6 mm反眉状巩膜隧道切口,C组采用6 mm反眉状巩膜隧道切口+缝合,术后1周观察角膜散光情况。结果散光度反眉切口+缝合组(C组)最小,反眉切口组(B组)次之,直切口(A组)最大,其差异有统计学意义(P<0.05),A组和B组患者散光以逆规性散光为主(74%～84%),C组以顺规性散光为主(61%),其差异有统计学意义(P<0.05)。结论6 mm反眉状巩膜隧道切口+缝合明显减小术后早期角膜散光,提高术后早期裸眼视力。
Objective To study the effect of three kinds of cataract surgery on postoperative early astigmatism. Methods 150 cases (150 eyes) of senile cataract patients were randomly divided into A, B and C groups, each with 50 eyes. Group A received 6 mm straight scleral tunnel incision, while group B received 6 mm Scleral tunnel incision, C group with 6 mm inverted scleral tunnel incision + suture, corneal astigmatism observed after 1 week. Results Astigmatism anti-brow incision + suture group (C group) was the smallest, anti-brow incision group (B group) followed by straight incision (A group), the difference was statistically significant (P <0.05) The astigmatism of patients in group A was mainly based on the astigmatism (74% -84%), while that in group C was mainly astigmatism (61%). The difference was statistically significant (P <0.05). Conclusions The 6 mm incised scleral tunnel incision and suture significantly reduce early postoperative corneal astigmatism and improve early postoperative visual acuity.