The onset of glaucoma in students is mostly related to genetics, and a few are caused by trauma and drugs. Glaucoma is a type of eye disease that causes increased intraocular pressure due to abnormal development of the anterior chamber angle or trabecular meshwork, which prevents atrial aqueous outflow.1. Genetics: Glaucoma in students is an autosomal dominant disease, and the causative gene can lead to abnormal development of the anterior chamber angle, or the trabecular meshwork-Schlemm canal system cannot effectively perform the function of atrial aqueous drainage, resulting in increased intraocular pressure.2. Trauma: When a student’s eye is bluntly contused, an acute increase in intraocular pressure can occur. After contusion, acute IOP elevation can occur, which may be related to large amount of anterior chamber blood accumulation or direct trabecular network injury, when inflammatory edema occurs due to the accumulation of red blood cells on the trabecular network or trabecular network injury, so that atrial fluid cannot be drained normally, thus triggering glaucoma; 3, drugs: long-term drops or systemic use of glucocorticoid drugs can also induce IOP elevation, and atrial angle microscopy suggests that the atrial angle is open. It is mainly caused by the side effects of glucocorticoid drugs. The degree of IOP elevation is related to the concentration of the drug and the time of use, so most students can gradually return to normal IOP after stopping glucocorticoid drugs.