Computer glasses and reading glasses have different focusing zone. Computer screens usually are positioned 20 to 26 inches from the user's eyes. This is considered the intermediate zone of vision â€” closer than driving (""distance"") vision, but farther away than reading (""near"") vision. Reading glasses are prescribed to correct near vision only. They can also be made with the same pair--bifocals with the upper part to see computer and the lower part to see near.