Department of Ophthalmology, Szent Rókus Hospital, Semmelweis University, Budapest H-1085, Hungary.
J Cataract Refract Surg. 2010 Mar;36(3):418-24. doi: 10.1016/j.jcrs.2009.10.035.
to evaluate the results of intraocular lens (IOL) exchange in cases of severe negative dysphotopsia and to measure the distance between the iris and the IOL optic using ultrasound biomicroscopy (UBM).
Szent Rókus Hospital and Eye Clinic, Semmelweis University, Budapest, Hungary.
Data of patients with major negative dysphotopsia symptoms after phacoemulsification with IOL implantation were reviewed retrospectively. In cases in which IOL exchange was performed to diminish the symptoms, the distance between the iris and the anterior surface of the IOL optic was measured by UBM and compared with that in a group of nonsymptomatic pseudophakic patients (control group).
in 3806 cataract procedures, 5 eyes (4 patients) had severe negative dysphotopsia symptoms. Intraocular lens exchange was performed in 3 cases. In 1 case, the secondary IOL was implanted in the reopened capsular bag and the symptoms persisted. In 2 cases, the secondary IOL was implanted in the ciliary sulcus and the symptoms resolved. On UBM, the mean iris-optic distance was 0.45 mm +/- 0.07 (SD) in the symptomatic group, 0.59 +/- 0.29 mm in the control group (n = 21) (P = .353), and 0.00 mm in the sulcus-fixated group.
The iris-optic distance was not statistically significantly different between eyes with severe negative dysphotopsia symptoms and nonsymptomatic eyes. However, when IOL exchange reduced the iris-IOL distance, the severe negative dysphotopsia symptoms resolved.
评估严重负性像差和使用超声生物显微镜（UBM）测量虹膜与人工晶状体（IOL）光学面之间距离的眼内晶状体（IOL）置换术的结果。
匈牙利布达佩斯塞梅尔维斯大学圣罗库斯医院和眼科诊所。
回顾性分析了因超声乳化白内障吸除联合 IOL 植入术后出现严重负性像差症状而接受 IOL 置换术的患者的数据。在因减轻症状而进行 IOL 置换术的病例中，使用 UBM 测量虹膜与人工晶状体光学面之间的距离，并与无明显症状的假晶状体患者（对照组）进行比较。
在 3806 例白内障手术中，有 5 只眼（4 例）出现严重负性像差症状。3 例进行了 IOL 置换术。1 例在重新开放的囊袋中植入了二次 IOL，症状持续存在。在 2 例中，二次 IOL 植入睫状沟，症状缓解。UBM 显示，症状组的虹膜-光学距离平均值为 0.45 毫米±0.07（SD），对照组（n=21）为 0.59 毫米±0.29 毫米（P=0.353），睫状沟固定组为 0.00 毫米。
有严重负性像差症状的眼与无症状眼的虹膜-光学距离无统计学差异。然而，当 IOL 置换术降低虹膜-IOL 距离时，严重的负性像差症状得到缓解。
