College of Optometry, Midwestern University, Glendale, AZ 85308, USA.
College of Optometry, Midwestern University, Glendale, AZ 85308, USA.
Cont Lens Anterior Eye. 2014 Jun;37(3):168-74. doi: 10.1016/j.clae.2013.09.013. Epub 2013 Oct 31.
The aim of the present study was to compare the objective and subjective visual performance of three different soft multifocal contact lenses.
10 subjects (habitual soft contact lens wearers) between the ages of 40 and 45 years participated in the study. Three different multifocal silicone hydrogel contact lenses (Acuvue Oasys, Air Optix and Biofinity) were fit within the same visit. All the lenses were fit according to the manufacturers' recommendation using the respective fitting guide. Visual performance tests included low and high contrast distance and near visual acuity, contrast sensitivity, range of clear vision and through-focus curve. Objective visual performance tests included measurement of open field accommodative response at different defocus levels and optical aberrations at different viewing distances.
Accommodative response was not significantly different between the three types of multifocal contact lenses at each of the accommodative stimulus levels (p>0.05). Accommodative lag increased for higher stimulus levels for all 3 types of contact lenses. Ocular aberrations were not significantly different between these 3 contact lens designs at each of the different viewing distances (p>0.05). In addition, optical aberrations did not significantly differ between different viewing distances for any of these lenses (p>0.05). ANOVA revealed no significant difference in high and low contrast distance visual acuity as well as near visual acuity and contrast sensitivity function between the 3 multifocal contact lenses and spectacles (p>0.05).
There was no statistically significant difference in accommodative response, optical aberrations or visual performance between the 3 multifocal contact lenses in early presbyopes.
本研究的目的是比较三种不同的软性多焦点隐形眼镜的客观和主观视觉性能。
10 名年龄在 40 至 45 岁之间的习惯性软性隐形眼镜佩戴者参与了这项研究。在同一次就诊中，适配了三种不同的多焦点硅水凝胶隐形眼镜（Acuvue Oasys、Air Optix 和 Biofinity）。所有镜片均根据制造商的建议使用各自的适配指南进行适配。视觉性能测试包括低对比度和高对比度的远、近视力、对比敏感度、清晰视力范围和焦点内曲线。客观视觉性能测试包括在不同离焦水平下测量开放视野调节反应和不同观察距离下的光学像差。
在每个调节刺激水平下，三种多焦点隐形眼镜之间的调节反应没有显著差异（p＞0.05）。对于所有三种类型的隐形眼镜，随着刺激水平的升高，调节滞后增加。在不同的观察距离下，这三种隐形眼镜设计之间的眼像差没有显著差异（p＞0.05）。此外，对于任何一种镜片，在不同的观察距离下，光学像差没有显著差异（p＞0.05）。方差分析显示，在高、低对比度远视力以及近视力和对比敏感度功能方面，三种多焦点隐形眼镜与眼镜之间没有显著差异（p＞0.05）。
在早期远视患者中，三种多焦点隐形眼镜之间的调节反应、像差或视觉性能没有统计学上的显著差异。
