My original post:
I wasn't going to make any more posts but I noticed something today and I need to get it out of my system so I can stop obsessing over it. A few days ago, I got my digital pictures of Duke developed into "real" pictures. There were about 50 pictures and in all of them in which Duke was facing straight ahead, his right pupil showed up smaller than his left. (You could tell because of the effect of the flash on his eyes). I looked at his older pictures and except for his really early puppy pictures, they all showed the same thing. The more recent the picture, the more noticeable the difference.
I guess it might just be the flash but it's in pictures that were taken at different angles and with different cameras (digital and film). I can't help but wonder if it might have been connected to his aggression problem. I think that in humans, uneven pupil dilation is often caused by problems, such as pressure, in the brain. Problems such as brain tumors can also cause behavioral changes. Pressure in the brain can also cause vomiting, something that Duke did more and more frequently as he got older. (I talked to the vet about the vomiting while Duke was alive. Since it was mostly bile that he vomited, the vet thought it was because he wasn't eating enough. Although there was always dog food available to him, he'd sometimes go days without eating. Now I'm wondering if his lack of appetite might have been related as well

I'm probably just over-reacting to the discovery. I'm still unable to think rationally when it comes to Duke. I just wish I had noticed it before when it could have been checked out. Duke's diagnosis of Dominance Aggression caused by bad breeding was probably right. It's just hard to accept something that you can't prove physically.
I'm not even sure I should post this, although I'm going to anyway. I just needed to get it out.
Tracy
Duke (Pekingese-cross)
September 16, 2002 - June 1, 2005