In addition to what Azfiddle said, would suggest you go to a camera or optics shop, and try out several pair. See if you can take them outside to see how they are in bright light. Inside and outside try focusing on something up close (less that 10 ft from you), and then focus on something far away.
Try to avoid mail order - you can't try out the optics. If a pair seems comfortable, but the optics are wonky, then ask for an additonal pair of the same type.