If the eyes are flashed, if the time is relatively short, the brightness is not very large, it is not likely to affect the visual function, and will not cause too bad impact, after a few minutes vision and visual field will be able to recover. If the number of flashes is more, the duration of exposure is longer, the brightness is greater, more likely to cause retinal damage to the fundus of the eye, may cause vision loss or narrowing of the field of vision, this situation will need to go to the hospital in a timely manner. But there is no good way to promote the recovery of vision, only through the means of nerve nutrition, to control the further development of damage. You can use nerve-nourishing drugs, such as rat nerve growth factor, and intravenous circulation-improving drugs, such as thromboplasty, to expect the body to recover on its own. If the damage is severe, the damage to the retinal cells is irreversible, and there is no good way to deal with it.