This is the way I've felt about my ophtho dept. No one really seems to have a sense of humor and is very serious, but also no one is stressed out, impatient, angry, or malignant. They're very laid back, stress-free but also mostly only serious and kind of lack a fun personality. In that regard, I think I'll love the job itself since I am very laid back but would probably have no interest in ever hanging out with ophtho ppl outside of work. I hope this is not the case everywhere, but most ophtho personalities seem extremely dull to me haha. To be fair, though, the dullest personalities were the older physicians and the younger ones (in their 30s) were much better. The older ones have all the power in the department, so I tend to think of them more as typical ophtho than the ones who only been practicing for 5 years.
So, in conclusion, every single ophtho is laid back, but many seem to be only serious and not fun. Hopefully the dulls ones were just dull from the beginning rather than ophthalmology making them dull over time haha.