球面与非球面人工晶状体植入术后视觉质量的对比研究

doi:10.6040/j.issn.1673-3770.0.2018.357

摘要/Abstract

摘要： 目的通过比较不同球差设计的非球面及球面人工晶状体(IOL)植入术后视觉质量,为白内障患者合理选择IOL提供依据。方法 59例(91眼)白内障超声乳化术后患者分为A、B两组,分别植入非球面和球面IOL,术后3个月测量4 mm和6 mm瞳孔直径下角膜、眼内及全眼的总高阶像差(tHOA)、球差(SA)、慧差(coma)及三叶草像差(trefoil)、客观散射指数(OSI)、调制传递函数截止频率(MTF cut off)以及斯特列尔比(SR)、OV100%、OV20%、OV9%模拟对比度视力以及对比敏感度(CS)的变化。结果术后3个月两组间裸眼视力(UCVA)和最佳矫正视力(BCVA)差异无统计学意义。术后4 mm及6 mm瞳孔直径下两组间角膜tHOA、SA、coma、trefoil均无统计学差异,眼内SA有统计学差异,tHOA、coma、trefoil均无统计学差异;4 mm瞳孔直径下两组间全眼SA有统计学差异,tHOA、coma、trefoil均无统计学差异,6 mm瞳孔直径下两组间全眼tHOA、SA有统计学差异,coma、trefoil均无统计学差异。两组OSI、MTF cut off、SR、VA100%、VA20%、VA9%均有统计学差异。两组3cpd空间频率CS变化无统计学意义,6cpd、12cpd、18cpd CS空间频率差异均有统计学意义。结论非球面IOL组全眼SA、tHOA以及眼内SA小于球面IOL组;OQAS相关视觉质量指标及中高空间频率下CS均优于球面IOL组。非球面IOL植入术后视觉质量优于球面IOL植入术。

关键词: 白内障, 球面人工晶状体, 非球面人工晶状体

Abstract: ObjectiveTo compare the visual quality after implanting aspheric and spherical intraocular lenses(IOLs)in cataract patients, to influence selectability of the better lens. Methods A prospective, non-random, controlled study was conducted on 59 age-related cataract patients(91 eyes)after phacoemulsification and IOL implantation. They were sorted into two groups; group A received aspheric IOLs and group B received spherical IOLs. Corneal, internal, and ocular high order aberrations(HOAs)including spherical aberration(SA), coma and trefoil, and total high order aberration(tHOA), were measured at 3 months postoperatively at pupil diameters(PD)of 4 mm and 6 mm using Topcon KR-1W. Objective scatter index(OSI), strehl ratio(SR), modulation transfer function(MTF)cut off, contrast visual acuity OV100%, OV20%, and OV9% were measured by OQASTMⅡ and the CSV-1 000. The independent samples t-test was used to analyze the data. Results There were no statistically significant differences between group A and B in uncorrected visual acuity and best corrected visual acuity. There was no statistically significant difference between the two groups in corneal tHOA, SA, coma, and trefoil at 4 mm and 6 mm PD. There was a statistically significant difference between the two groups in internal SA, but no significant difference in internal tHOA, coma, or trefoil at 4 mm and 6 mm PD. There was a statistically significant difference between the two groups in ocular SA but no significant difference in coma and trefoil at 4 mm PD. There was a statistically significant difference between the two groups in ocular tHOA, SA, but no significant difference in ocular tHOA, coma, and trefoil at 6 mm PD. There was a statistically significant difference between the two groups in OSI, MTF cut off, SR, OV100%, OV20%, and OV9%. With respect to CS, no significant difference was found at a spatial frequency of 3 cpd, but significant differences at 6 cpd, 12 cpd, and 18 cpd were observed between aspheric and spherical IOL groups. Conclusion The ocular tHOA, SA and internal SA in aspheric IOL group were lower than the spherical group at 4 mm and 6 mm PD; which demontrates that the visual quality parameters from the Optical Quality Analysis System and the middle and high frequency(6 cpd, 12 cpd, 18 cpd)in the aspheric IOL group were better than those of the spherical IOL group. Visual quality in aspheric IOL groups was better than spherical IOL groups.

Key words: Cataract, Spherical intraocular lenses, Aspheric intraocular lenses

中图分类号:

R776

林佳, 廖萱, 兰长骏, 谭青青, 文佰伟, 田靖. 球面与非球面人工晶状体植入术后视觉质量的对比研究[J]. 山东大学耳鼻喉眼学报, 2019, 33(4): 109-114.

LIN Jia, LIAO Xuan, LAN Changjun, TAN Qingqing, WEN Baiwei, TIAN Jing. Visual quality research on a custom selection of aspheric intraocular lenses in cataract patients[J]. Journal of Otolaryngology and Ophthalmology of Shandong University, 2019, 33(4): 109-114.

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