Typically, very bright lights will cause overload. With a head injury, the shock is 10 times greater and you may not adjust. Buy the darkest sunglasses you can find. Most often, the cheapest sunglasses work the best. This will also help those who get headaches from bright lights.
Visual overload can also occur from having to process too much information.
For some people, finding their favorite breakfast cereal in a grocery store lane that has over 50 different cereals can cause the same overload. One suggestion is to try shopping at a smaller store and stick with that store. Copyright 1998 Dr. Glen Johnson. All Rights Reserved.