What’s wrong with waking up in the morning with a swollen eyeball?

Getting up in the morning with swollen eyes may be caused by local edema and other physiological factors, but also may be caused by excessive eye use, conjunctivitis, etc..
1. physiological factors: get up in the morning eye swelling may be too much water before going to bed or crying before going to bed caused by eye edema or congestion, is a physiological response, generally do not need special treatment.
2. Excessive eye use: If you stay up too late the day before and use your eyes too much, resulting in the eyes not getting enough rest, it may lead to poor venous return in the eyes, swelling, pain and other discomfort.
3. Conjunctivitis: Conjunctivitis is caused by microbial infections, and may also be caused by not paying attention to eye hygiene and sanitation, which can cause a foreign body sensation in the eye, conjunctival congestion and edema, which can cause the eyes to be swollen in the morning.
Swollen eyes in the morning may also be caused by other reasons such as keratitis, if after a period of rest can not be relieved, or accompanied by other uncomfortable symptoms, it is recommended to go to the hospital to consult, clear the cause of treatment.