目的：探讨散光人工晶状体(Toric intraocular lens，Toric IOL)矫正白内障合并角膜散光的临床效果及对视功能的影响。

方法：回顾性分析2013-08/2016-08在我院接受超声乳化手术的白内障合并角膜散光患者375例390眼的临床资料，根据其植入晶状体的不同分为球面IOL组和Toric IOL组，观察两组患者的治疗满意度，比较两组患者治疗前后的视力、视功能和并发症发生率。

结果：两组患者治疗前视力和总和散光情况，差异无统计学意义(P>0.05)。治疗后3mo，Toric IOL组患者的视力优于球面IOL组，总和散光低于球面IOL组，差异具有统计学意义(P<0.05)。术后1mo和术后3mo，Toric IOL组的轴位旋转度均低于球面IOL组； 两组患者治疗前视功能差异无统计学意义(P>0.05)； 治疗后3mo，Toric IOL组患者的最佳矫正视力(best corrected visual acuity，BCVA)、对比敏感度函数下面积(area under the log contrast sensitivity function，AULCSF)、峰值对比敏感度(contrast sensitivity maxium，Smax)和截止空间频率(cut-off spatial frequency，CutSF)水平均低于球面IOL组，差异有统计学意义(P<0.05)； 两组患者均未发生眼内炎、继发性青光眼、黄斑水肿和虹膜睫状体炎等并发症； 两组患者治疗满意度差异无统计学意义(χ²=0.002，P=0.964)。

结论：Toric IOL能有效矫正白内障合并角膜散光，效果优于球面IOL，并可明显改善患者的视力和视功能。

METHODS: The clinical data of patients with cataract and corneal astigmatism after phacoemulsification in our hospital from August 2013 to August 2016 in our hospital were retrospectively analyzed. The patients were divided into spherical IOL group and Toric group according to the difference of their implanted IOL. The treatment satisfaction of the two groups was observed, and the difference of visual acuity, diopter, optic function and complications between the two groups were compared.

RESULTS: The visual acuity and total astigmatism of the two groups before treatment had no difference(P>0.05). At 3mo after treatment, the visual acuity and total astigmatism of patients in the Toric IOL group were better than those of the spherical IOL group, the differences were statistically different(P<0.05). At 1 and 3mo after operation, the axial rotation of the Toric IOL group was lower than that of the IOL group. There was no difference between the two groups in visual function before operation(P>0.05). After treatment, the BCVA, area under the log contrast sensitivity function(AULCSF), contrast sensitivity maxium(Smax)and cut-off spatial frequency(CutSF)of the patients in the Toric group were lower than those of the spherical IOL group at the end of the treatment, the difference was statistically significant(P<0.05). Two groups of patients were no endophthalmitis, secondary glaucoma, macular edema and iridocyclitis complications; no significant difference between the two groups on patients satisfaction(χ²=0.002, P=0.964).

CONCLUSION: Toric IOL has a better therapeutic effect on patients with cataract and corneal astigmatism. It can improve the visual acuity and optic function in patients with cataract.