20–60 vision can be understood like this: 20–20 means that if you are looking at an object 20 feet away then you see it clearly. the first 20 is how far away from the object you have to be and the second twenty is how clear it is to people who have perfect vision
No. Not really. "Normal" vision is around 20/20 or 20/30. Having 20/60 means that you need to be 20 feet away from an object rather than a "normal" person who can see that object at 60 feet.
Eye Health and Your Eye Doctor. ... Having 20/60 vision means that you must be at 20 feet to see what a person with normal vision can see at 60 feet. It doesn’t mean you have perfect vision.
20/60 vision means that you see at a distance of 20 feet (about 6meters) as clearly as a person with normal vision sees at adistance of 60 feet (about 18 meters). share with friends.
it measures the sharpness of your sight at 20 feet from an object. having 20/60 vision means that you must be at 20 feet to see what a person with normal vision can see at 60 feet.
The top number is the testing distance (20 means twenty feet away). The bottom number is the distance at which that letter size would measure 5 minutes of angle (60 means sixty feet away; 10 means ten feet away). 20/20 is considered to be normal vision.
An eye chart measures visual acuity, which is the clarity or sharpness of vision. The top number refers to your distance in feet from the chart. The bottom number indicates the distance at which a person with normal eyesight can read the same line. For example, if you have 20/30 vision, it means your vision is worse than average.
20-60 vision means that you are a bit vision imparied. "If neither of your eyes can see better than 20/60 without improvement from glasses or contacts, you may be defined as visually impaired. Low vision is a term describing a level of vision below normal (20/70 or worse) that cannot be corrected with conventional glasses.
Snellen charts display letters of progressively smaller size. "Normal" vision is 20/20. This means that the test subject sees the same line of letters at 20 feet that person with normal vision sees at 20 feet. 20/40 vision means that the test subject sees at 20 feet what a person with normal vision sees at 40 feet.
The expression "20/20" is so common in the United States that there's even a TV show named after it. Here's where the 20/20 designation comes from. If you have 20/40 vision, it means that when you stand 20 feet away from the chart you can see what a normal human can see when standing 40 feet from ...