While photographing a young buck recently, I noticed that his left eye had a whitish clouded spot.
As he moved nearer I focused on his left eye, attempting to get a better view of his problem.
A heavily cropped section from the photo above shows a badly damaged area covering much of his pupil area, possibly rendering his blind in this eye. How it happened is anyone's guess. It does appear to be healing well and judging from his actions his injury does not seem to be limiting him in the least.