White discharge from the corner of the eye is a very common occurrence in daily life. It occurs in people of all ages and is mainly caused by non-infectious factors, with a few infections caused by bacteria, viruses, and fungi. White discharge from the corner of the eye, sometimes in the form of foam, is secreted by the lid glands located at the edge of the eyelid and is mainly related to the individual’s eye habits and living environment. It is easy for people who stay up late, are overworked, smoke and drink, and work in an environment where there is a lot of dust and other particulate matter floating in the air. White discharge from the corners of the eyes can also be caused by lid gland dysfunction, where the lid glands secrete heavily, metabolites are deposited in the ducts, and the opening of the lid gland is blocked, resulting in white discharge from the eyes, some of which is foamy and some of which is gel-like. Another common condition in ophthalmology, canthal blepharitis caused by infection, can also occur. In viral infections, such as viral conjunctivitis or viral keratitis, a white discharge from the eye is a very common clinical manifestation. Of course, there are also some people who are sensitive to their surroundings and have an allergic-like reaction to the white discharge in the corner of their eyes. In conclusion, white discharge in the corner of the eye is predominantly an eyelid disease and most cases do not require separate, long-term antibiotic use.