Department of Optometry, Chung Shan Medical University, Taichung, Taiwan.
Department of Ophthalmology, Chung Shan Medical University Hospital, Taichung, Taiwan.
Sci Rep. 2022 Apr 21;12(1):6573. doi: 10.1038/s41598-022-10580-7.
Theoretically, contact lenses change the accommodation and vergence demands of the eyes and directly or indirectly influence binocular vision. The purpose of this study was to investigate the influence of different optical designs of contact lenses on binocular vision and visual behavior among young adults. In this randomized, single-blinded experimental study, visual behavioral performance (VBP) and Ocular Surface Disease Index questionnaires were used for preliminary screening. Nineteen myopic subjects aged 20-26 years (21.59 ± 1.40 years) participated in the study. Baseline values for subjective refraction and binocular visual functions were evaluated. All the subjects were randomly grouped to wear different optical designs of single-vision, progressive, and bifocal contact lenses. Eye examinations were performed on the first day (CL baseline), 2nd week, and 4th week of wearing the lenses. In addition, subjects completed the VBP and visual quality questionnaire again at the end of the examination. Single-vision contact lenses (Lens 1) increased accommodative lag, negative relative accommodation, and distant and near vergence; however, vergence facilities, accommodative facilities, heterophoria, and the comfort and posture balance dimensions in the VBP questionnaire were improved. Progressive contact lenses (Lens 2) reduced the lag of accommodation and near vergence; in addition, vergence facilities and accommodative facilities were also improved. Bifocal contact lenses (Lens 3) affected negative and positive relative accommodation, but vergence facilities and accommodative facilities also progressed. Furthermore, both progressive (Lens 2) and bifocal (Lens 3) contact lenses enhanced overall visual behavioral performance. In terms of visual quality, single-vision contact lenses (Lens 1) were the most comfortable, progressive and bifocal contact lenses reduced distant visual acuity and stability, progressive contact lenses (Lens 2) had more complaints about halos at night, and bifocal contact lens (Lens 3) users were more likely to have double vision. Compared with single-vision contact lenses, progressive and bifocal contact lenses relaxed accommodation, reduced the lag of accommodation, and improved visual behavioral performance. Although the vergence function showed a significant change, it did not show worse trends when wearing contact lenses. Contact lenses with different optical designs have a great influence on binocular vision and visual behavioral performance.
从理论上讲，隐形眼镜改变了眼睛的调节和聚散需求，并直接或间接地影响双眼视觉。本研究的目的是探讨不同光学设计的隐形眼镜对年轻人双眼视觉和视觉行为的影响。在这项随机、单盲的实验研究中，使用视觉行为表现（VBP）和眼表面疾病指数问卷进行初步筛选。19 名年龄在 20-26 岁（21.59±1.40 岁）的近视受试者参加了这项研究。评估了主观屈光和双眼视觉功能的基线值。所有受试者均随机分为单焦、渐进和双焦隐形眼镜组。在第一天（CL 基线）、第 2 周和第 4 周佩戴镜片时进行眼部检查。此外，在检查结束时，受试者再次完成 VBP 和视觉质量问卷。单焦隐形眼镜（镜片 1）增加了调节滞后、负相对调节和远、近聚散；然而，VBP 问卷中的聚散灵活性、调节灵活性、隐斜视和舒适性及姿势平衡维度得到了改善。渐进式隐形眼镜（镜片 2）降低了调节滞后和近聚散；此外，聚散灵活性和调节灵活性也得到了改善。双焦隐形眼镜（镜片 3）影响了负相对调节和正相对调节，但聚散灵活性和调节灵活性也有所提高。此外，渐进式（镜片 2）和双焦（镜片 3）隐形眼镜都提高了整体视觉行为表现。在视觉质量方面，单焦隐形眼镜（镜片 1）最舒适，渐进式和双焦隐形眼镜降低了远视力和稳定性，渐进式隐形眼镜（镜片 2）夜间有更多的光晕抱怨，双焦隐形眼镜（镜片 3）使用者更容易出现复视。与单焦隐形眼镜相比，渐进式和双焦隐形眼镜放松了调节，减少了调节滞后，提高了视觉行为表现。虽然聚散功能有显著变化，但佩戴隐形眼镜时并没有显示出更糟糕的趋势。不同光学设计的隐形眼镜对双眼视觉和视觉行为表现有很大影响。
