[cero_z]

Hi LargeCents,
I, too, am in the camp that has contempt for those who wear sunglasses while playing. I view them as a crutch that should not be permitted in poker (nor should obscuring your face with hats, hoods, visors, hockey masks, mud masks, paper bags, etc. IMO).
However, I think that most players who come from online poker into the cardrooms would be better off wearing them. This is because these players are very often cornucopias of tells, which will be exploited by a small number of very good readers. Whatever people say about shades, they do make it more difficult to see some common tells, so you may find that your results are better when you wear them.
The problem of hindering your own vision is a common one, and I personally think it's more important to be comfortable and have stamina at the table then it is to hide your eyes, but that's an individual decision. Mirrored sunglasses are probably the best option for fully hiding your eyes, while not dimming your vision that much. Good Luck.