角膜缘松解切开在有晶状体眼后房型人工晶状体植入术中的应用

摘要

目的：：探讨在有晶状体眼后房型人工晶状体植入术( implantable collamer lens,ICL)中应用角膜缘松解切开矫正散光的安全性和有效性。方法：高度近视合并散光患者105例185眼,随机分为角膜缘松解切开组( A组)60例105眼,角膜缘松解切开联合ICL植入术；手术对照组( B组)45例80眼,仅施行常规ICL植入术。分别于术前,术后1 wk；1,3 mo进行裸眼视力( uncorrected visual acuity, UCVA)、最佳矫正视力( best-corrected visual acuity,BCVA)、眼前节分析仪Pentacam检查,观察角膜散光变化。结果：术后1,3 mo UCVA比较,两组差异具有统计学意义( P0.05)。 A 组术前平均角膜散光度为1.52±0.55D,B组术前平均角膜散光度为1.48±0.57D,两组差异无统计学意义(P>0.05)。 A组术后1wk；1,3mo平均角膜散光度数分别为0.55±0.41,0.60±0.38,0.51±0.32D, B组术后1wk；1,3mo平均角膜散光度分别为1.20±0.48,0.93±0.47,0.96±0.40D,两组差异具有统计学意义(P 0. 05 ). Preoperative corneal astigmatism was 1. 52 ± 0. 55D in group A and 1. 48 ± 0. 57D in group B, there was no statistically significant difference (P>0. 05). One week postoperatively, the astigmatism was 0. 55 ± 0. 41D in group A and 1. 20 ± 0. 48D in group B. One month postoperatively, the astigmatism was 0. 60 ± 0. 38D in group A and 0. 93 ± 0. 47D. Three months postoperatively, the astigmatism was 0. 51 ± 0. 32D in group A and 0. 96 ± 0. 40D in group B. The difference between the two groups were statistically significant ( P<0. 05 ). The difference value of corned astigmatism before surgery and 1wk, 1 and 3mo after surgery had statistical significance ( P<0. 05). ln LRls group, at preoperative and postoperative time points, the average corneal astigmatism changes were also considered statistically significant difference (P<0. 05). CONCLUSlON: LRls performed during lCL surgery appeared to be an effective and safer procedure to reduce pre-existing corneal astigmatism and improve UCVA as well as the visual quality.