My husband is a diabetic. he is 55 yrs old. his eyes looked funny and all of a sudden his good eye started hurting. he cant stand the light at all. He has a lazy eye which he doesn't see well with and he was born with it. when it's open, light, and blinking hurts it. he says he feels like his eye is being poked out. should i take him to the walk in clinic? he is very stubborn and maybe if i show this to him he will go. What could this be?