If you know your standard reader power, subtract 0.50 to 0.75 diopters for computer use.
Buying computer reading glasses requires focusing on three key factors: , lens power , and protective coatings . Unlike standard readers designed for books (about 40 cm away), computer glasses are optimised for the "intermediate zone" (60–70 cm), which is usually an arm's length. 1. Determine Your Power (Diopters)
Best if you only need clear vision for the screen and don't mind taking them off to see further away or read paperwork.