"When you reach the point of not being able to read up close without stretching your arms to the limit- you may need to consider single-vision reading glasses. Optify reading glasses come in handy as a suitable option designed keeping in mind you usage frequency with anti scratch lenses for superior performance . Easy to carry & comfortable to carry. Note- Reading glasses can be custom-made for each individual through an optical dispenser- or they can be purchased ""ready-made"". For accurate power of your eyesight its recommended to get your eyes test ."