I have a character who's dealing with injuries after an attacker throws drain cleaner in his face. The injured character is diagnosed with Grade 2 chemical burns in both eyes. I've found a ton of useful medical information and more pictures than I ever wanted to see, but nothing seems to indicate the actual degree of visual impairment that the character would have. The articles say things like "blurred vision" and "photosensitivity," but I'd like a better idea of what my guy actually can and cannot see during the first week or so after the injury. Help, please?