Southern California College of Optometry, Marshall B. Ketchum University, Fullerton, USA.
The Ohio State University College of Optometry, Columbus, USA.
Ophthalmic Physiol Opt. 2021 Jan;41(1):93-104. doi: 10.1111/opo.12761. Epub 2020 Nov 18.
To determine how multifocal contact lenses affect contact lens discomfort.
This randomised, participant-masked, crossover clinical trial fitted 84 uncomfortable soft contact lens wearers (30-40 years old) with single vision and multifocal contact lenses. Contact lens discomfort was assessed using the Contact Lens Dry Eye Questionnaire-8 (CLDEQ-8).
There was no difference between multifocal and single vision survey scores (p = 0.08). There was an interaction between lens type and age group (p = 0.05). CLDEQ-8 scores with the single vision lens were less symptomatic than multifocal scores in participants <35 years old (p = 0.01). Single vision and multifocal scores for the older age group were not different. Subjectively, those in the <35 year-old age group preferred the single vision lens for intermediate (p = 0.02), distance (p = 0.003), and overall vision (p = 0.002). In the ≥35 year-old age group, no lens was significantly preferred for vision.
Participants in the younger age group had more favourable wearing experiences with the single vision lens compared to the multifocal lens. The older age group, however, had similar wearing experiences with both lens types. While younger contact lens wearers may prefer the wearing experience with single vision lenses, some uncomfortable contact lens wearers approaching 40 years old may benefit from wearing a multifocal contact lens sooner in life than is typically practised.
确定多焦点隐形眼镜如何影响隐形眼镜不适。
本随机、参与者盲法、交叉临床试验为 84 名不适的软性隐形眼镜佩戴者（30-40 岁）验配单焦点和多焦点隐形眼镜。使用隐形眼镜干眼问卷-8（CLDEQ-8）评估隐形眼镜不适。
多焦点和单焦点调查评分之间无差异（p=0.08）。镜片类型和年龄组之间存在交互作用（p=0.05）。在<35 岁的参与者中，单焦点镜片的 CLDEQ-8 评分比多焦点评分的症状更少（p=0.01）。对于年龄较大的组，单焦点和多焦点评分没有差异。主观上，<35 岁年龄组的人更喜欢单焦点镜片用于中间距离（p=0.02）、远距离（p=0.003）和整体视力（p=0.002）。在≥35 岁年龄组中，没有一种镜片在视力方面明显更受欢迎。
与多焦点镜片相比，年轻年龄组的参与者对单焦点镜片的佩戴体验更满意。然而，老年组对两种镜片类型的佩戴体验相似。虽然年轻的隐形眼镜佩戴者可能更喜欢单焦点镜片的佩戴体验，但一些接近 40 岁的不适隐形眼镜佩戴者可能会受益于更早地佩戴多焦点隐形眼镜，而不是通常的做法。
