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目的探讨不同部位巩膜隧道切口超声乳化联合后房型人工晶状体植入术对角膜散光的影响。方法住院老年性白内障100例(120眼)随机分为A,B两组。A组行颞侧巩膜隧道切口,B组行上方巩膜隧道切口。术后观察3天、1月、3月的角膜平均散光度数及视力情况。结果2组术后裸眼视力较术前均有明显提高,但术后不同时间内角膜散光度之间有显著性差异。术后各时间点A组散光度均小于B组。结论颞侧巩膜隧道切口较上方巩膜隧道切口术后对角膜散光影响小,术后3月时角膜散光与术前相比无统计学意义(P>0.05),视力恢复好,是较理想的切口位置。
Objective To investigate the effect of scleral tunnel incision phacoemulsification combined with posterior chamber intraocular lens implantation on corneal astigmatism. Methods 100 cases of hospitalized senile cataract (120 eyes) were randomly divided into A and B groups. A group of temporal scleral tunnel incision, B group above the scleral tunnel incision. Postoperative observation of 3 days, January, March corneal mean astigmatism and visual acuity. Results The postoperative uncorrected visual acuity of the two groups was significantly higher than that before the operation, but there was a significant difference between the two groups in postoperative corneal astigmatism. A group at various time points after the astigmatism were less than the B group. Conclusion The temporal scleral tunnel incision has less effect on corneal astigmatism than the upper scleral tunnel incision. The corneal astigmatism at 3 months after operation is not statistically significant (P> 0.05), and the visual acuity recovery is better. It is a better incision position.