I posted this on a waterfowl forum too but didn't get much of a response other than it's probably a benign eye tumor called melancytosis. It' a sty like growth I noticed about 2-3 weeks ago on my Golden. It doesn't seem to bother him and is not scratching it but there is a small amount of mucous type discharge from that eye in the morning. The Internet write up implies it may very well just go away in time. I know, go the Vet which I will do as he has some vaccinations due-but has anyone else experienced this with their dog. Sounds like it's fairly common in older dogs, mine will be 9 in January-4 other dogs, never had this happen and they were all long lived, thanks for any comments.