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What does 20 20 vision mean?
It means seeing at 20 feet what a person with normal vision sees at 20 feet. A person who has 20/40 vision can see at 20 feet what the person with normal vision sees at 40 feet, etc. Some people have better than 20/20 vision.
What is the indicates normal vision at 20 feet?
which of the following indicates normal vision at 20 feet
What is normal vision dictated by?
Normal vision is 20/20 vision, or in metric 6/6. This means that when you are 20 feet away from something, you will see what someone with normal vision would see at 20 feet away. With 20/40 vision, you would see something 20 feet away as someone with normal vision would see it at 40 feet, so therefore it would be blurry. 20/100 is also possible and 20/200 is considered legal blindness. 20/10 would be better than normal. (Adapted from howstuffworks.com)
Why you cant see visible light?
If your vision is normal, then you CAN see visible light.
Is 16 20 better than 20 20 vision?
No, 20/20 vision is considered ideal normal vision where a person can see at 20 feet what a normal person can see at 20 feet. A 16/20 vision means a person can see at 16 feet what a normal person can see at 20 feet, indicating worse vision.
What is the highest eye vision you can get?
The highest level of eye vision is considered to be 20/10, which means a person can see at 20 feet what a person with normal vision can see at 10 feet. This level of vision is rare and considered better than normal 20/20 vision.
What is the name for 20-40 vision?
This is quoted from another question:"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."http://wiki.answers.com/Q/Is_20-60_vision_considered_bad
What is considered the normal eye vision range for individuals without any visual impairments?
The normal eye vision range for individuals without visual impairments is typically 20/20. This means that a person can see at 20 feet what a person with normal vision can see at 20 feet.
What does it mean to have 16 16 vision?
Oh, dude, having 16/16 vision means you can see things at 16 feet that people with normal vision can see at 16 feet. It's like having a superpower, but instead of shooting lasers from your eyes, you just have really good eyesight. So, like, congrats on having eyes that work, I guess.
What is eye strength?
This usually refers to the ability to see at great distances. Thus normal vision (20/20) is the norm for most people in their younger years. However, there exists a subset of people who have "better" than normal vision (e.g. 20/10), meaning that they can clearly make out objects at a greater distance than the "normal" person.
Why do you see trails in your vision?
its normal. it depends on the lighting in a room like if it is dim u will see a trail
How does normal color vision work?
Normal color vision requires the use of specialized receptor cells called cones, which are located in the retina of the eye. There are three types of cones, termed red, blue, and green, which enable people to see a wide spectrum of colors.
