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20-20-20 eye break rule
20-20-20 rule
本条正文为英语。其他语言的翻译尚在准备中。
收录并不等于推荐。
由来: Contemporary visual hygiene · 系统: Guidance for preventing digital eye strain · 生活习惯与睡眠
这是什么
A rule of thumb, during screen work, of looking 20 feet (about 6 m) away for 20 seconds every 20 minutes. A habit for preventing dry eyes and eye strain.
简短入门（不是治疗指示）
- Use a timer and look into the distance at regular intervals. Also notice blinking.
- Adjust the position and brightness of the screen.
- Seek care for a sudden drop in sight or for pain.
常与此项一起提到的不适或目的
- 眼疲劳
- 头痛
- 肩颈僵硬
相关症状的视频
调查笔记（并不承诺效果）
D：仅为传统用法。本次整理未能确认针对该作法本身的充分临床研究
本次整理未能确认出处。
It is widely advised as hygiene, but large RCTs of this rule itself are limited. The rationale for blinking and taking breaks is reasonable.
注意
Eye pain, light sensitivity, or a sudden visual-field change belong with an eye specialist.
如有不安，或有基础疾病、妊娠、正在用药，请咨询具备资格的专业人员。
不宜进行的情况
- An acute change in sight (do not wait too long on self-care alone)