What is the cause of sore eyes?

Eye acid pain is mainly a manifestation of visual fatigue. There are many reasons for visual fatigue, such as myopia, hyperopia, astigmatism, too strong light, excessive fatigue, etc., as well as often stay up late, lack of sleep, excessive use of the eye, will cause eye fatigue. Serious can also show dizziness, nausea, mental depression, concentration can not be concentrated, etc. The harm of visual fatigue, our eye diseases are from the beginning of visual fatigue, can cause a high degree of tension in the optic nerve, showing eye swelling, visual function decline caused by inflammation of the eye surface, can cause dry eye, presbyopic ahead of time, cataracts, glaucoma and so on. The prevention of visual fatigue is mainly to pay attention to eye hygiene at ordinary times, prevent long-term contact with electronic products, try not to stay up late, eat more fresh vegetables and fruits, appropriate vitamin supplements, can prevent eye fatigue.