The bottom third is the highest strength (and the power you choose) for reading, the middle third is about half that strength for computer use, and the top third is slightly magnified for clarity when interacting with someone nearby (sitting across a desk, for example).
- Unisex Square Reading Glasses in Black by Foster Grant - James - +3. Foster Grant® James Multi Focus™ reading glasses give you three different strengths that allow you to use them continuously for reading, computer use and interacting. The bottom third is the highest strength (and the power you choose) for reading, the middle third is about half that strength for computer use, and the top third is slightly magnified for clarity when interacting with someone nearby (sitting across a desk, for example)..
Comes with a case and cleaning cloth. This innovative Multi Focus™ lens technology means no more taking your readers off and putting them back on to see things clearly at different distances. A timeless, matte-finished rectangular frame is accented with a metal inlay temple detail for a classic look. - Unisex Square Reading Glasses in Black by Foster Grant - James - +3.