1.Visual Acuity Test
You look at a series of letters to find out how sharp your vision is at different distances. The letters usually get smaller as you go on. Typically, you test one eye at a time, then both eyes together. If you have “20/30” vision, that means that standing 20 feet from the chart, you can read letters most people see from 30 feet. So 20/20 would be better, and 20/15 would be even better.
2.Pupil Test
Your pupils are openings at the center of your eyes that get bigger or smaller, depending on how much light you’re looking at. To test them, your doctor may shine a bright beam of light into your eye. This should make your pupils shrink. If they get wider, or don’t respond at all, there may be a problem.
