There are more reasons for blood clots in the eyes, and common factors include sudden rise in blood pressure, overuse of the eyes, trauma and other related factors. 1. Rise in blood pressure: there is a thin conjunctiva inside the eye, the conjunctiva is a layer of tissue covering the surface of the white tympanic membrane, with capillaries on it, if the blood pressure rises suddenly, it may lead to a sudden rupture of the capillaries inside the eye, resulting in conjunctival hemorrhage, which will cause blood clots in the eye. 2. Excessive eye use: If you look at some electronic products such as cell phones, computers and TVs for a long time, your eyes will be damaged to a certain extent. The conjunctiva inside the eyes will have a small amount of local bleeding symptoms, causing a small amount of blood clots inside the eyes, it is recommended to pay attention to rest. 3. Trauma: Generally, after the eyes are traumatized and external force, the capillaries on the surface of the eyes will be ruptured, and there will be blood clots in the eyes, which can be treated in the hospital. Blood clots in the eyes of more factors, it is recommended to pay attention to the need to exclude certain pathological factors, it is recommended to go to the regular hospital in time to do eye-related examinations to determine the specific cause of the disease, and give timely symptomatic treatment of the cause.