The prognosis of retinal detachment blindness is related to whether or not the macula is detached and how long it has been detached. If the patient’s macula is not detached or has been detached for a short period of time, the prognosis for vision is generally good. However, if the macular detachment is detached for a longer period of time, the prognosis for vision loss is generally poor, and the patient may not be able to regain his or her sight. Retinal detachment is a very serious disease. If the macula is not detached or detached for a short period of time in the early stage of the disease, and the patient undergoes timely surgical treatment, such as vitrectomy to reset the retina, the prognosis for vision is generally better, and the patient may be able to regain his or her sight. However, if the patient has macular detachment and the detachment time is longer, and there has been a serious vision loss such as no light perception, even if surgical treatment is taken, the possibility of vision recovery is also lower. It is recommended that patients with retinal detachment visit the hospital in a timely manner to assess their condition and follow the doctor’s instructions for treatment to avoid permanent blindness.