Dry eye, also known as dry eye, is caused by many common reasons, such as physiological reasons, such as eye fatigue, long-term use of mobile phones, computers, tablets and other electronic products to reduce blinking, leading to dry eyes. Pathological reasons such as chronic conjunctivitis and keratitis may lead to dry eye. In addition, meibomian gland dysfunction will cause meibomian opening obstruction, leading to meibomian gland inflammation, even blepharitis, leading to dry eye. If the patient has dry eye that can't be relieved for a long time, he needs to go to the eye clinic and take medicine according to the doctor's advice. There are many reasons for dry eye, such as dry eye, meibomian gland dysfunction or blockage, conjunctivitis, keratitis and so on. 1, dry eye: the most common, mainly because watching mobile phones and computers for a long time is easy to cause dry eye, which leads to the decline of tear film stability, tear quality or blinking. At present, artificial tears are mainly used for treatment; 2, meibomian gland dysfunction or blockage: it is recommended to go to ophthalmology for meibomian gland tube dredging treatment; 3, conjunctivitis or keratitis: dry and red eyes are more common in inflammation and need anti-inflammatory treatment. Be careful not to rub your eyes with your hands.