Retinal edema is a symptom secondary to fundus disease, a condition that can be cured. For the treatment of this disease, a detailed examination should be performed to clarify the cause of retinal edema and then give symptomatic treatment later. Several common causes include: first, diabetic retinopathy caused by retinal edema, for this case, the first thing to do is to control blood sugar, for the fundus, can be intraocular injection of anti-VEGF drugs to reduce edema. Second, it is seen in local inflammation, such as retinitis, for which anti-infective symptomatic treatment should be given, and only when the inflammation is controlled normally, the retinal edema will gradually subside. Therefore, after this performance, you must go to the hospital for a detailed examination, only to find out the cause of the disease, you can choose the correct treatment plan.