Evaluation of the effects of single vision lenses with additional near-power on computer-induced asthenopia

Abstract Objective: Compared to standard spectacle lenses, do +0.40 EyeZenTM lenses reduce symptoms of asthenopia induced by computer? Methods: A prospective clinical study was carried out with 39 volunteers who spent more than 4 hours a day using a computer (age, 27.31±4.24; male: female =13:26). Asthenopia and visual comfort were assessed using a questionnaires. All participants completed the asthenopia questionnaire with updated regular lenses (baseline). After 4 weeks of +0.40 Eyezen™ lenses wearing all subjects answered the asthenopia questionnaire and a second questionnaire to establish their level of satisfaction with these lenses. Statistical analysis was performed usind the Shapiro-Wilk test and Wilcoxon test, and p-values less than 0.05 were considered statistically significant. Results: Compared to standard spectacle lenses (baseline), +0.40 EyeZenTM lenses wearing reduced the total asthenopia score from17.44 ± 5.51 to 13.18 ± 10.22 (p < 0.001). Regarding the perception of the visual comfort levels with these lenses in the management of digital devices, more than 90% of subjects said they were entirely or delighted with their visual comfort.. Conclusions: Digital asthenopia induced by computer was significantly reduced by +0.40 EyeZen lenses wearing.

摘要
研究目的：相较于普通框架眼镜镜片，+0.40屈光度的EyeZenTM镜片是否能够缓解计算机诱发的视疲劳（asthenopia）症状？
研究方法：本研究为前瞻性临床研究，共纳入39名每日使用电脑时长超过4小时的志愿者（年龄：27.31±4.24岁；男女性别比为13:26）。采用问卷调查的方式评估视疲劳与视觉舒适度。所有受试者首先佩戴常规框架眼镜完成视疲劳问卷（基线阶段）。受试者佩戴+0.40 EyeZenTM镜片4周后，完成第二次视疲劳问卷，并填写另一套问卷以评估对该镜片的满意程度。统计学分析采用夏皮罗-威尔克检验（Shapiro-Wilk test）与威尔科克森检验（Wilcoxon test），以p值<0.05作为具有统计学显著性的判定标准。
研究结果：与基线阶段的普通框架眼镜镜片相比，佩戴+0.40 EyeZenTM镜片后，受试者的总视疲劳评分从17.44±5.51降至13.18±10.22（p<0.001）。在使用数码设备时的视觉舒适度感知方面，超过90%的受试者表示对该镜片的视觉舒适度完全满意或极为满意。
研究结论：佩戴+0.40 EyeZenTM镜片可显著缓解计算机诱发的数字视疲劳。