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There are lots of different types of cameras. Some take pictures of things far away. Others take pictures of things close up, like a leaf or flower or ?. You have the close up kind.
For you to be able to see clearly at a distance, you'll need to place a lens in front of your camera (eye) that moves the focal point where you are focused out to distance. Then you'll see at distance well.
The 20/80 thing is a measure of the angle of vision. Most people see an item 1 degree tall. The letter E has 3 lines and two spaces. If each is 1 degree, then the whole thing will be 5 degrees high. At 20 feet, the size of that letter is a certain size. Further out, 5 degrees is larger. At 40 feet, it's twice as large as the letter at 20 feet. At 80 feet, it's 4 times larger than the one at 20 feet.
When a 'normal' person stands back 80 feet, he can see the 80 foot letter. YOU have to be at the 20 foot distance to see that same letter, so without your glasses, you can't see well as you're out of focus.
How out of focus? The power is equal to one over the distance in meters. If you were focused at a meter away, your eyes would be too 'strong' as you are focused close by. You'd be a +1.00 too strong. So you'd need a -1.00 to move that focal point out to infinity.
If you were focused at a half meter away, you'd be +2.00 too strong, need a -2.00 to move that focal point out.
Third of a meter, +3.00 to strong, need a -3.00.
Quarter of a meter, need a -4.00
Fifth of a meter, -5.00
Sixth of a meter, -6.00.
A 20/80 vision at distance, without correction isn't too bad, not really.
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Wiki User
∙ 11y ago
Wiki User
∙ 12y ago20/50 vision is impaired vision, but it is not that bad. You will still be able to get a license in most states. Things in the distance will be hazy and have less details. But up close should not be too effected
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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.
Is 20 32 vision bad?
I have 20 80 vision in my right eye and 20 50 in my left eye. 20 60 vision is the boarderline when you need glasses. Just had an eye appointment this morning. See an eye doctor so you can order frames and lenses for your glasses. Hope that helped.
What eyesight is best?
20/20 is the NORMAL vision, not the best. basically a normal person can stand 20 feet from something and see it clearly. so a person who has 20/50 means that they have to stand 20 feet from an object that a normal person (who has 20/20) can see from 50 feet away. if you have 20/200, which is legally blind, you have to stand 20 feet from an object that a normal person can see from 200 feet away...can you fathom that?!?! well it's real. now on the flip side you can be better than 20/20. if i got your eyes checked and the doctor said i had 20/19 vision it would be 1 foot better than 20/20. so basically if you're standing 10 feet from something, i would be able to see the same thing you see from 20 feet away. so theoretically 20/1 would be the best vision possible, but i doubt if that's attainable by a human being. there might be a few animals out there, like the eagle or owl, that have something close to that. cats have good night vision buy i don't think they have good vision as far as distance goes, well not superb like eagles and owls. the best vision possible for a human is 20/10 because of the vision receptors in your iris.it is also the best vision recorded.
What is the indicates normal vision at 20 feet?
which of the following indicates normal vision at 20 feet
Is 6-9 6-18 vision considered poor?
Vision of 6/9 isn't too bad but 6/18 is quite poor (although I have seen worse!). It is important to remember that the UK and the US use different units of measurement for visual acuity. Feet in the US and Metres in the UK. 20-20 is the same as 6/6. -------------------------------------------------------------------------------- Perfect vision is 20-20 . Your numbers are very much under that.
What does it mean if you have 50 20 vision?
Your vision at 20ft is my vision at 50ft.
How bad is 20-300 vision?
I am pretty sure that is very bad for u, I have 20-40 vision
How bad is 20 300 vision?
I am pretty sure that is very bad for u, I have 20-40 vision
Is 20 90 vision bad?
I'm asking the question - I need an answer from you What is 20/90 vision
Is 20 100 vision bad?
Ni
How bad is 75-50 vision?
not that bad, you're just near-sighted.
Is 2030 vision considered bad?
It may be worse then average, but It depends on what kind of vision you have. Like 20/30 in astigmatism is bad, but 20/30 in farsightedness is.
Can you play sports with 20 80 and 20 60 vision?
20 60 is a normal vision . you can easily play sports and it is convenient . but 20 80 is a bad vision so we cannot play sports by it.
What visual acuity do you need to pass the vision test?
20/50
i have 20/50 in my right eye and 20/20 in my left can i join the marines and 20/50 is the best it gets?
Generally speaking, as long as one eye has 20/20 vision, the vision in the other eye does not really matter. This is also very dependent on your Military Occupational Specialty (MOS), however, as some MOS's require better vision in both eyes than others.
Is 20 200 bad vision?
20/200 means you can only see at 20 feet what a person with normal vision can see at 200 feet. Therefore you would be legally blind.
Is 20-70 vision considered bad?
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. At 20/60 you should still be able to function with everyday life and only need glasses to drive or to read a blackboard at school. 20/60 is only a mild impairment. 20/30 to 20/60 is considered mild vision loss, or near-normal vision 20/70 to 20/160 is considered moderate visual impairment, or moderate low vision 20/200 to 20/400 is considered severe visual impairment, or severe low vision 20/500 to 20/1,000 is considered profound visual impairment, or profound low vision less than 20/1,000 is considered near-total visual impairment, or near total blindness
