Well, the vet said there is nothing he can find wrong, but agrees that Dragon gives little to no reaction to any stimuli directed at just the one eye. Blood work and urine tests came back clean and good. There is no scarring on the cornea or anything he could find. His theory is that there is a misfire in the receptors for vision on that side somewhere in his brain. Advice I got was to work with him calmly and to handle him regularly to get him over the fear, we developed a sound to get his attention and he is doing well learning that this sound means I will touch him.