Will Falconer, DVM Moderator
Hi Pamela,
I'd highly encourage you to consult with a homeopathic vet on this horse. Sarcoids are part of a larger picture, especially with the history of uveitis. See my Resources page to find one, and don't hesitate to work by telephone if need be. With good prescribing, you might just get the whole horse well, and keep the eye "till death do you part."
One preventative tip: do not vaccinate this horse! Both the growths and the eye disease are likely associated with vaccinosis.
And, in general, it's good to be scared about treating chronic disease. It takes training to do this well, while you can learn acute prescribing quite easily and do a whole lot of good for animals in your care. That's what my course teaches. The chronic stuff is challenging for guys like me, even, at it now for over 20 years!