Poor sleep can lead to watery eyes and visual fatigue. Due to lack of rest, the skin of the lower eyelid became loose and it has no enough strength to oppress the dacryocyst. Therefore, tears cannot be transported into the nasal cavity normally. Lack of sleep, mental stress and other physiological reasons may result in watery eyes and eye fatigue. To ease the watery eyes, you can close your eyes and do some eye exercises. Or you can foment your eyes with a towel soaked with hot water after the hot water is squeezed. Just get some good sleep and make sure your sleeping time is enough. After a period of adjustment, I believe your situation will improve. If the symptom persists unfortunately, consult your eye doctor in case there are other diseases that may affect your eyes.