Brain tumors that cause blindness usually cannot be completely restored, but it must be judged according to the actual situation, especially if the brain tumor is benign and grows very slowly, although it has a certain compression effect on the visual center, it is not very strong and does not destroy the visual center. If the visual center is not destroyed during the surgery, a certain degree of vision can be restored in the later stage. However, the most fearful thing is that the brain tumor is a malignant brain tumor, which has completely destroyed the visual center, and the prognosis of the brain tumor has to be improved by removing the visual center during the surgery, basically there is no way to recover in the later stage. Therefore, once a brain tumor has caused adverse effects on vision, early treatment may be able to restore blindness, but the more advanced the tumor is, the more the nerve cells are completely necrotic and cannot be fully restored.