The McKay Multi Focus™ Reader has three different powers that allow you to use them for reading, computer use, and interacting.
These comfortable frames offer spring hinges, an anti-reflective lens coating, and scratch-resistant lenses. This round style is flattering for both men and women. - Unisex Round Reading Glasses in Black by Foster Grant - McKay - +1.75 The bottom third has the highest strength (and the power you choose) for reading, the middle third has a slightly reduced magnification for computer use, and the top third has about half the strength of the bottom, for clarity when interacting with someone nearby (sitting across a desk, for example).