If you're nearsighted taking your glasses off can blur the pixelation of a face so that you can get a pretty good idea of the person's appearance, especially if you are just trying to guess if it's really a specific person you are already familiar with.
If you're nearsighted taking your glasses off can blur the pixelation of a face so that you can get a pretty good idea of the person's appearance, especially if you are just trying to guess if it's really a specific person you are already familiar with.