In the clinic, the precursor of epilepsy caused by traumatic brain injury, many people will suddenly appear in front of the eyes of the flash or bright spots, some people may also suddenly appear blurred vision, vision loss, etc., of course, this is different from person to person. Because there are many forms of epileptic seizures, mainly divided into grand mal and petit mal seizures, grand mal seizures are often seen suddenly loss of consciousness, foaming at the mouth, double vision, incontinence, etc., and many times there is no special precursor to the sudden onset of seizures. There are also minor forms of seizures, such as disorientation seizures, suddenly stayed there motionless, like these may have bright spots, bright lights, photophobia and other conditions before.