Optom Vis Sci. 2022 Oct 1;99(10):758-762. doi: 10.1097/OPX.0000000000001938. Epub 2022 Sep 6.
The use of screen-enabled handheld devices has increased exponentially during the last few years among the older adults. Up until now, a general suggestion for preventing symptoms of digital eye strain with large screen use was to address any existing refractive error, including presbyopia. It is unclear whether this advice is of consequence in the case of smaller handheld devices.
The aim of this study was to examine whether correcting presbyopia ameliorates the negative effect on digital screen use, examining handheld devices where these issues are expected to be more acute with presbyopic individuals.
This is a cross-sectional study of 120 consecutive participants who had received correction for presbyopia during the past month and returned for a routine follow-up examination. The participants filled in a demographics questionnaire, questions on time spent online and using devices with digital screens, data on their eye complaints, and the validated Digital Eye Strain Questionnaire (DESQ).
The DESQ factor scores and total score correlated with the near addition ( P < .001). Higher DESQ scores were associated (by order of magnitude) with higher near addition and a lower amount of time spent using a handheld screen-enabled device ( P < .001) while controlling for age and type of corrective lenses.
Results indicate that older adults are at an additional disadvantage while using handheld screen-enabled devices compared with younger adults: they are more likely to be presbyopes and need higher near addition, yet increasing near addition does not guarantee greater comfort in the use of smartphones but rather increase the likelihood of experiencing digital eye strain symptoms.
在过去几年中，老年人对手持屏幕设备的使用呈指数级增长。到目前为止，预防大屏幕使用导致的数字眼疲劳症状的一般建议是纠正任何现有的屈光不正，包括远视。目前尚不清楚在使用较小的手持设备时，这一建议是否具有重要意义。
本研究旨在探讨远视矫正是否能减轻数字屏幕使用的负面影响，检查在远视人群中，这些问题在手持设备中可能更为突出的情况。
这是一项横断面研究，共纳入 120 名连续参与者，他们在过去一个月内接受了远视矫正，并返回进行常规随访检查。参与者填写了一份人口统计学问卷，包括在线时间和使用带数字屏幕设备的时间、眼部不适的相关数据以及经过验证的数字眼疲劳问卷（DESQ）。
DESQ 因子评分和总分与近附加量呈正相关（P<0.001）。更高的 DESQ 评分与更高的近附加量和更低的手持屏幕设备使用时间相关（P<0.001），同时控制年龄和矫正镜片类型。
结果表明，与年轻人相比，老年人在使用手持屏幕设备时处于额外的劣势：他们更有可能是远视患者，需要更高的近附加量，但增加近附加量并不能保证在使用智能手机时更舒适，反而会增加出现数字眼疲劳症状的可能性。
