My dad flash burned his eyes several years ago and when he went to the eye doctor the doctor told him "yes it is bad but isn't as bad as the guy a few weeks ago." He wore contacts and needed to clean them and didn't have any of the enzymatic cleaner for them so he used Efferdent!!!!! His eyes were burned so bad that the Dr. said you could see the ragged edges around his eyes. He had to wear the bandages for 2 weeks! My dad only had to wear his for 24 hours!!