I have 2 british calves (about 600 lbs) on a corn diet and both have gone completely blind almost overnight. I'm pretty sure it's not endstage pinkeye, but their eyes are now completely white, with just a small black dot in the centre of each. Also, they're becoming emaciated, but that may be secondary to the blindness. I've been kicking around a few ideas, but would appreciate another opinion. Thanks!