My 5-yr old domestiuc short hair has a two-week old eye injury. He has finished 2 rounds of antibiotics and seems fine. Eats and drinks and is playful-he is blind in the eye that is injured and the vet says his iris is poking throuhg the cornea, but is it neccessary to have the eye removed? He said last week the eye has a 10% chance of making it and I do't want to have the surgery if I don't have to. Any advice?