如果你的眼睛感到疼痛, 做眼操可以缓解你的视力疲劳.

If your eyes are aching, doing some eye exercise can relieve your eye tiredness.

儿童瞬目揉眼的真正病因主要是远视性屈光不正引起的视力疲劳所致。

Conclusion The ultimate cause of winking in children is vision fatigue resulting from hypermetropia .

儿童瞬目揉眼的真正病因主要是远视性屈光不正引起的视力疲劳所致.

Conclusion The ultimate cause of winking in children is vision fatigue resulting from hypermetropia.

朗读课文时，若不用手棒着，亦只好平放在桌上，这样会增加学生的颈部及视力疲劳。

When the students read out texts, the textbooks are put flat on the desk, if the textbooks are not held by hand. So students' neck fatigue and eye fatigue are increased.