Get your eye exam. The prescription is good for 2 years. Go online to
www.zennioptical.com & order a pair of glasses. You can get a complete set of glasses with titanium frames that can be bent into a knot & return to their original shape, lenses with tint, anti-glare, and scratch resistant coating - the whole works for under $50. I highly suspect that a lot of optometrists are just stocking the same types of frames, ordering from zennioptical themselves, and marking the price up a few hundred dollars. I know I would, since they're the exact same frames and lenses. All that the optometrists do is cut the blank lenses to fit into the frame. They don't make the prescription lenses themselves.