Department of Ophthalmology, Knappschaft's Hospital, Sulzbach, Germany.
Graefes Arch Clin Exp Ophthalmol. 2013 Jan;251(1):89-93. doi: 10.1007/s00417-012-2141-2. Epub 2012 Sep 2.
To determine the impact of ciliary sulcus implantation after capsular bag defect on tilt and decentration of foldable intraocular lenses (IOL) measured by a novel device.
This prospective noncomparative single-center investigation included patients (N = 10) older than age 60 who underwent cataract surgery with a posterior capsular bag defect and implantation of a threepiece hydrophilic aberration neutral IOL (OphthalmoPro AC 7013) in the ciliary sulcus. All eyes (N = 10) were examined using the OPD-Scan II (Nidek). Spherical aberration (Z4,0), vertical coma (Z3,-1), and horizontal coma (Z3,1) were calculated for a 5.0 mm pupil. Lens tilt and decentration was studied using a new Purkinjemeter.
The mean horizontal optic tilt was 7.68° ± 5.16 (SD) and the mean vertical optic tilt was 3.01° ± 2.44 (SD). Horizontal decentration was 0.4 ± 0.33 mm (SD) and vertical decentration was 0.31 ± 0.21 mm (SD). Corneal aberrations were partially compensated by IOL- related aberrations.
Both tilt and decentration of sulcus-fixated IOLs exceeded the tolerable amounts evaluated for aspheric IOLs in eye model experiments. However, these spheric IOLs showed mitigation rather than accentuation of corneal wavefront aberrations in the rare event of capsular bag defect during cataract surgery.
使用新型设备评估后囊袋破损患者行睫状沟缝线固定人工晶状体（IOL）植入术后 IOL 倾斜和偏心对折叠式 IOL 影响。
本前瞻性非对照单中心研究纳入了 10 例年龄超过 60 岁的患者，这些患者均因后囊袋破损接受白内障手术并于睫状沟植入三片式亲水性非球面散光矫正 IOL（OphthalmoPro AC 7013）。所有眼（N=10）均采用 OPD-Scan II（尼德克）进行检查。对 5.0mm 瞳孔计算球差（Z4,0）、垂直彗差（Z3,-1）和水平彗差（Z3,1）。采用新型 Purkinjemeter 研究晶状体倾斜和偏心。
平均水平光轴倾斜为 7.68°±5.16（SD），平均垂直光轴倾斜为 3.01°±2.44（SD）。水平偏心为 0.4±0.33mm（SD），垂直偏心为 0.31±0.21mm（SD）。IOL 相关像差部分补偿了角膜像差。
睫状沟缝线固定 IOL 的倾斜和偏心均超过眼模型实验中评估的非球面 IOL 可接受量。然而，在白内障手术中后囊袋破损的罕见情况下，这些球性 IOL 显示出对角膜波前像差的缓解而非加重。
