目的：探讨年龄相关性白内障患者行白内障超声乳化摘除联合区域折射型人工晶状体(IOL)植入术后残余散光对视觉质量的影响，评估区域折射型IOL对散光的包容性。

方法：回顾性队列研究。收集2020-07/2022-03于我院眼科行白内障超声乳化摘除联合区域折射型IOL(Lentis Comfort LS-313 MF15)植入术的年龄相关性白内障患者62例73眼的临床资料，根据术后6 mo残余散光度数进行分组，0.75 D<残余散光度数≤1.50 D的患者35例40眼作为试验组，残余散光度数≤0.75 D的患者27例33眼作为对照组。比较两组患者术后6 mo视力、离焦曲线、客观视觉质量\〖波前像差、斯泰尔比值(SR)、调制传递函数(MTF)\〗、主观视觉质量(视功能问卷评分)、满意度及脱镜率情况。

结果：两组患者术前散光度数及术后 6 mo残余散光度数均有差异(P<0.01)。术后6 mo，两组患者裸眼远、中、近视力、客观视觉质量、主观视觉质量、满意度及脱镜率均无差异(P>0.05)，离焦曲线显示，两组患者在附加球镜度数+2.00--4.00 D离焦范围内各点视力均无差异(P>0.05)。

结论：Lentis Comfort LS-313 MF15 IOL能够包容1.50 D以内的规则散光。

METHODS: Retrospective cohort study. The clinical data of 62 cases(73 eyes)of age-related cataract patients who underwent phacoemulsification combined with regional refractive IOL(Lentis Comfort LS-313 MF15)implantation from July 2020 to March 2022 at the ophthalmology department of our hospital were collected. They were grouped according to residual astigmatism at 6 mo postoperatively, taking 35 cases(40 eyes)with residual astigmatism of 0.75 D to 1.50 D as the experimental group, and 27 cases(33 eyes)with residual astigmatism ≤0.75 D as the control group. Visual acuity, defocus curves, objective visual acuity \〖wavefront aberrations, Strehl ratio(SR), modulation transfer functions(MTF)\〗, subjective visual acuity(national eye institute visual function questionnaire-25), patients' satisfaction, and spectacle independence were compared between the two groups at 6 mo postoperatively.

RESULTS:There was a difference in the preoperative astigmatism and the number of postoperative 6 mo residual astigmatism between the two groups(P<0.01). At 6 mo postoperatively, there was no difference in uncorrected distance, intermediate, and near visual acuity, objective visual quality, subjective visual quality, satisfaction, and spectacle independence between the two groups(P>0.05). The defocus curves showed that there was no difference in visual acuity between the two groups at all points in the +2.00 to -4.00 D defocus range of the additional spherical equivalent(P>0.05).

CONCLUSION:Lentis Comfort LS-313 MF15 IOL was able to accommodate regular astigmatism of 1.50 D.