First of all, the interior of Red Eye is incredibly hip- complete with tasteful 50's style pin-up pictures (gotta love that!). They have a great selection of frames, everything form the super-trendy to the stylish and even some antique pieces. The prices are listed up front so there are no surprises and they are providers for many insurance plans.
The doctor is great (one of my personal favorites! lol) and does a complete eye exam with all the trimmings (pressure check, contact lens fitting etc) for a really reasonable price, even if you are paying cash. This is truly a wonderful Chicago shop, the kind of place you visit once and come back to every year.