Visual acuity is a number that indicates the sharpness or clarity of vision. A visual acuity measurement of 20/70 means that a person with 20/70 vision who is 20 feet from an eye chart sees what a person with unimpaired (or 20/20) vision can see from 70 feet away.
Similarly, is it bad if you have 20 25 Vision?
20/25 vision means that if a person with perfect vision stands at 25 feet away from a target, you will need to stand at 20 feet away from the target to see what this person is seeing. It is slightly worse than 20/20 vision but it is usually a clinically insignificant difference.
What does it mean if you have 20 10 Vision?
If you have 20/10 vision you are above average! You are better than the “normal” person and you have better than what is considered to be standard or normal, vision. If you have 20/10 vision, you can see at 20 feet, what a normal person can see at 10 feet from an eye chart.
What does it mean when your vision is 20 300?
that 20 means the distance which visual acuity is measured which is in feet,while 300 is the distance a person with normal vision should see. 20/300 means you (the 20) can see at 20 feet what someone with perfect 20/20 vision can see at 300 feet. 20/300 is rather poor vision.