Actually, when I have a significant prescription change, I order both single-vision reading-distance glasses and computer-distance glasses. Three pairs of reading glasses; city home recliner chair, lake home recliner chair, and travel kit. Two pairs of computer glasses; home office, lake home office. I usually just buy whatever frames are currently for sale, typically two for $25, as I am not concerned about being stylish. Readers get frames primarily black, computer glasses primarily brown or gold. This makes them easy to tell apart.