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目的通过研究不同直径人工晶状体眼波阵面像差的差异,探讨其相关性,以期为临床合理选择人工晶状体提供依据。方法选择白内障患者96人(104眼)随机分为两组进行手术并植入不同直径的人工晶状体。术后3个月观察术眼波阵面像差及其它相关的变化。结果1、瞳孔4.0mm时,两组的高阶像差均方根值(RMSh)分别为(0.16±0.05)μm,(0.13±0.05)μm;瞳孔5.0mm时,两组RMSh分别为(0.29±0.05)μm,(0.20±0.06)μm;瞳孔6.0mm时,两组RMSh分别为(0.36±0.10)μm,(0.28±0.05)μm;瞳孔7.0mm时,两组RMSh分别为(0.59±0.21)μm,(0.38±0.11)μm。2、瞳孔5.0mm时,两组的RMSh有显著差异(P<0.05)。结论1.人工晶状体眼的高阶像差随瞳孔直径增大亦增高;2.在瞳孔5.0mm时,植入5.5mm光学直径的人工晶状体眼的高阶像差均方根值比植入6.3mm光学直径的人工晶状体眼的高阶像差均方根值大。
Objective To study the differences of the wavefront aberrations in different diameters of intraocular lenses and to explore their correlations so as to provide a basis for clinical reasonable choice of intraocular lenses. Methods A total of 96 patients (104 eyes) with cataract were randomly divided into two groups undergoing surgery and implantation of IOLs of different diameters. Three months after operation, the wavefront aberrations and other related changes were observed. RMSh of the two groups were (0.16 ± 0.05) μm and (0.13 ± 0.05) μm, respectively. When the pupil was 5.0 mm, the RMSh of the two groups were (0.29 ± 0.05) μm and RMSh were (0.36 ± 0.10) μm and (0.28 ± 0.05) μm, respectively, when the pupil was 6.0 mm; RMSh was (0.59 ± 0.21) and ) μm, (0.38 ± 0.11) μm. 2, pupil 5.0mm, RMSh two groups were significantly different (P <0.05). The higher-order aberrations of IOL with the pupil diameter also increased.2. The higher-order aberrations of the IOL with 5.5 mm optical diameter implanted in the pupil 5.0 mm than those with 6.3 mm optical diameter of the intraocular lens with higher order root mean square error.