A previous patient of mine brought her mother in for an examination. She had stated thank you for "saving my son's life." Her son wasn't sick or anything like that. He had a lazy eye and was undergoing patching for at least a couple of years with no results. The boy was introverted and did not participate in sports. I put a contact lens in his lazy eye. Even though he couldn't see much better than 20/200 in that eye, he was now able to use that eye and have depth perception. The change in behavior was dramatic. He was doing better in school, participated in sports and is generally more outgoing. His mother says he's a lot happier.