Causes of vitreous hemorrhage Trauma, surgery, systemic hemorrhagic diseases (hypertension, diabetes, hematological diseases), subarachnoid hemorrhage, retinal fissure, retinal detachment, retinal disease (central retinal vein obstruction, peripapillary retinal veinitis, age-related macular degeneration), proliferative retinopathy, intraocular tumors, etc. Clinical manifestations A small amount of blood accumulation can be manifested as flying mosquitoes, black shadows floating in front of the eyes, while a large amount of blood accumulation can be manifested as a significant loss of vision, or even only light perception. Clinical examination There are floaters or dark red turbidity in the vitreous humor, and the fundus is not accessible when there is a lot of blood accumulation. Treatment To identify the cause and treat the primary disease, medication: hemostatic agents, anticoagulants, preparations to reduce blood viscosity, fibrinolytic enzyme preparations, iodine preparations, herbs to activate blood circulation and resolve stasis. If drug treatment is ineffective for 1-3 months, vitrectomy and intraocular laser treatment for the primary disease are feasible; if retinal detachment is found by ultrasound, vitreous surgery and retinal repositioning should be performed early. After the treatment of fundus can be seen, FFA should be performed as early as possible to clarify the primary disease and give etiological treatment, and laser treatment to prevent rebleeding. The current treatment is to improve the microcirculation and nourish the optic nerve: 400 mg of Gegenin injection should be added to 250 ml of saline injection, IV, once a day; 250 ml of Danshen drip, IV; 2 ml of cytidine + 100ug of vitamin B6 + 3 g of vitamin C + 10 ml of 10% potassium chloride + 2 sticks of energy combination into 250 ml of 5% glucose, IV, once a day, to nourish the retina and promote the retina. Retina, promote retinal local blood circulation. Dengjianxin injection 10 ml + Xiangdan 2 ml, acupuncture point injection (Sun, Sibai, Foot Sanli), once a day to promote local blood circulation in the eye.