Garp has it right. It's a rough adjustment if you haven't been in a busy county hospital with everything that goes with it. If you don't speak any spanish - it's going to be harder.
After that, you get used to things. By second year, you have no weekend call, no holiday call, and life is pretty good.
By the third year, you just go in to operate - and that's why you go into ophtho anyway.
The volume is great, the variety is huge, the chairman can be a pain, but you don't interact with him very much. (when you do, just tell him this is the best program in the country and you'll have a good start.)
I think after six months of Parkland eye clinic, you've seen enough to be comfortable in a comprehensive ophthalmology practice. After that, the rest is just gravy.