There are still black spots after retinal detachment surgery, mainly due to vitreous clouding, hemorrhage or air bubbles in the vitreous cavity. 1. Vitreous clouding: in the process of surgery, it is very likely that the vitreous body is not completely removed, which will lead to vitreous residue and black spots in front of the eyes, which can be absorbed by oneself in most cases. 2. Hemorrhage: during the operation, the retina may be reset at the same time causing retinal hemorrhage, appearing black spots before the eyes, may consider taking oral blood circulation drugs to promote the absorption of blood stasis. 3. Vitreous cavity bubble: It is common after retinal detachment surgery and can be absorbed after about 10 days. If black spots appear after retinal detachment surgery, patients are advised to go to the hospital for a review in time to clarify the cause and treat it actively.