Vision loss after laser treatment for fundus hemorrhage may be caused by bruising, macular edema, diabetic retinopathy and other factors, which can be treated by taking medication and controlling blood sugar. 1. Bruising: Bruising formed due to fundus hemorrhage, if there is still residual bruising after laser surgery, it may obscure the patient’s vision and cause vision loss, which can usually be treated by using medicines to stop bleeding and remove bruising, such as Carbazochrome tablets, Phenol Sulphonyl Ethyl Amine injection, Aspirin tablets and so on. 2. macular edema: fundus hemorrhage through laser treatment, can be the eye microvascular hemorrhage sites and small foci of hemorrhage closed treatment, but also may cause macular edema, severe macular edema can be injected through the treatment of glucocorticoids, such as tretinoin vitreous injection, hydrocortisone injection, to play a role in alleviating or subsiding the vision loss caused by macular edema. 3. Diabetic retinopathy: If diabetic patients are in high level for a long time, it may cause retinopathy. When the patient’s fundus arteriosclerosis may cause fundus hemorrhage, leading to the symptoms of vision loss. So first of all, patients need to take glucose-lowering drugs on time, such as metformin tablets, gliclazide tablets, glimepiride tablets, etc., to control blood sugar for treatment. Patients with vision loss after laser treatment for fundus hemorrhage are advised to go to regular hospitals, complete relevant examinations as prescribed by doctors, and carry out standardized treatment after clarifying the cause of the disease.