Macular edema is mainly promoted by intravitreal injection of hormone or anti-VEGF needle to promote the edema, using drugs such as trimethoprim or razumab, or Compazepam for vitreous injection, it is observed that macular edema will significantly subside, thus restoring vision, but the efficacy of these hormone and anti-VEGF injection is not lasting, usually in about 3 months, but also to repeat the injection. . Macular edema is only one kind of macular lesion, it is a related complication caused by many kinds of macular diseases, such as age-related macular degeneration, retinal vein obstruction, diabetic retinopathy, all these lesions will cause macular edema. Intravitreal injection of hormone or anti-VEGF injection is only one way to treat macular edema. If macular edema still cannot subside after these drug injections, laser treatment of macula can also be considered to promote the subside of macular edema.