Vitreous clouding with flashing sensation is generally a normal phenomenon, but also need to be alert to pathological causes, such as retinal detachment. 1. Normal phenomenon: mainly due to the vitreous clouding, the vitreous body’s mobility increases, the pulling force on the retina increases, when the vitreous body pulls the retina, there will be a flashing sensation, which is a normal phenomenon, when the vitreous body and the retina completely detached from the flashing sensation will disappear, pay attention to avoid strenuous exercise in this period. 2. Pathological factors: If the patient has blurred vision, distorted vision and a large black area in front of his eyes during the flashing sensation, he needs to go to the hospital for relevant examinations to confirm whether it is retinal detachment. If it is retinal detachment, the patient needs to be treated mainly by surgery, and the commonly used surgical methods include retinal reset surgery and extra-scleral compression surgery. Vitreous clouding with flashing sensation, it is recommended that you can go to the hospital for examination in order to detect the problem early.