Ehmer A, Rabsilber T M, Mannsfeld A, Sanchez M J, Holzer M P, Auffarth G U
International Vision Correction Research Centre, Universitäts- Augenklinik, Heidelberg.
Ophthalmologe. 2011 Oct;108(10):952-6. doi: 10.1007/s00347-011-2411-0.
Multifocal intraocular lenses (MIOL) are known to induce various photic phenomena depending on the optical principle. The aim of this study was to investigate the correlation between stray light measurements performed with the C-Quant (Oculus, Germany) and the results of a subjective patient questionnaire.
In this study three different MIOLs were compared: AMO ReZoom (refractive design, n=10), AMO ZM900 (diffractive design, n=10) and Oculentis Mplus (near segment design, n=10). Cataract and refractive patients were enrolled in the study. Functional results were evaluated at least 3 months postoperatively followed by stray light measurements and a subjective questionnaire.
Surgery was performed for all patients without complications. The three groups were matched for age, IOL power and corrected distance visual acuity (CDVA). Significantly different stray light (median) values log(s) were found (Kruskal-Wallis test, p<0.05): 1.12 log (refractive), 1.13 log (segment) and 1.28 log (diffractive). The subjective questionnaire did not show differences in glare perception but refractive MIOL patients noticed more halos surrounding light sources than the diffractive and segment MIOL patients.
Stray light and subjective photopic phenomena do not show any basic correlation. Measurements in patients with refractive MIOLs showed less stray light than near segment or diffractive MIOLs. However, refractive MIOLs induced more halos compared to the other groups analyzed.
多焦点人工晶状体（MIOL）因光学原理不同会引发各种光学现象。本研究旨在探讨使用C-Quant（德国奥culus公司）进行的杂散光测量与患者主观问卷结果之间的相关性。
本研究比较了三种不同的MIOL：AMO ReZoom（折射设计，n = 10）、AMO ZM900（衍射设计，n = 10）和Oculentis Mplus（近节段设计，n = 10）。纳入白内障和屈光不正患者进行研究。术后至少3个月评估功能结果，随后进行杂散光测量和主观问卷调查。
所有患者手术均无并发症。三组患者在年龄、人工晶状体度数和矫正远视力（CDVA）方面相匹配。发现杂散光（中位数）值log(s)有显著差异（Kruskal-Wallis检验，p<0.05）：1.12 log（折射型）、1.13 log（节段型）和1.28 log（衍射型）。主观问卷在眩光感知方面未显示差异，但折射型MIOL患者比衍射型和节段型MIOL患者注意到光源周围的光晕更多。
杂散光与主观明视觉现象之间未显示出任何基本相关性。折射型MIOL患者的测量显示杂散光比近节段型或衍射型MIOL少。然而，与其他分析组相比，折射型MIOL引发的光晕更多。
