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Doctor insights on: Is There A Way To Test Your Vision At Home

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Dr. Richard Bensinger
1,704 doctors shared insights

Vision (Definition)

Vision is a feature of a person's brain that allows him to see. He must have normal eyes, optic nerves (that stretch from the eyes to the back of his brain), and visual cortex (the vision center in the brain), in order to see properly. An ophthalmologist is a ...Read more


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How are eye vision test generally scored?

How are eye vision test generally scored?

Compared to standard: The chart used to test the eye is calibrated for normal vision at 20 feet. The outcome achieved is compared to what a normal eye can see at 20 feet. So if you can only see at 20 feet what a normal eye sees at 40 feet, your vision is considered to be 20/40. This is measured with and without corrective lenses at distance and at near. The vision with correction is considered to show the true vision. ...Read more

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Can a field vision test rule out ms?

Can a field vision test rule out ms?

No, not diagnostic: Loss of visual fields can be caused by any condition affecting brain or visual tracts, and it is a test pure and simple of function, not causation. ...Read more

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What does a "350" on my vision test result actually mean?

What does a "350" on my vision test result actually mean?

Lens correction: It is most likely the power of the lens correction you require. Either + 3.50 (farsighted, hyperopic) or -3.50(nearsighted or myopic). ...Read more

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What is the worst vision you can have and still pass a driving test?

What is the worst vision you can have and still pass a driving test?

Check your state: "visual acuity screening standard is 20/40 or better with both eyes together, no worse than 20/70 in the poorer eye. Drivers who fail the vision screening are referred to a vision specialist. Drivers with visual acuity of 20/200 or worse may not be licensed to drive. Drivers may use bioptic telescopes for driving, but may not use them to meet the vision standard". ...Read more

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What is the worst vision you can have and still pass your driving test?

Varies by State: Most states set a limit of 20/40 in the best eye for their limit. There is some variation by each state. Check with your department of motor vehicles for the rules in your state. ...Read more

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Could you tell me what a vision test is that measures the far lateral phoria?

Could you tell me what a vision test is that measures the far lateral phoria?

Cross cover test: There are a series of 2 tests - the cross cover test and cover/uncover test that is used to determine the type and amount of ocular misalignment. Far lateral phoria is common and is not important. If you think you may have an ocular misalignment, then see a strabismis specialist ophthalmologist. Most major cities will have this type of ophthalmologist. ...Read more

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Colored spots and sparks in vision 24/7 for over a year? Have had every test possible everything comes back normal. What do you recommend? Help please

Colored spots and sparks in vision 24/7 for over a year? Have had every test possible everything comes back normal. What do you recommend? Help please

Colored spots: You need to work with your doctors to try and find the source. Ask if one of the medicines you are on could be the culprit. Do not stop these on your own. ...Read more

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Wondering why would the optometrist order me a field vision test?

Wondering why would the optometrist order me a field vision test?

Several options: Visual field tests are ordered if there is a suspicion of some possible eye condition which could cause a field loss such as glaucoma. Visual field is not usually a screening test and optometrists are notorious for ordering such a test just to rake in the cash for the test. So you should find out if there is an actual reason or get a second opinion from an ophthalmologist. ...Read more

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What are reasons why would the optometrist order me a field vision test?

Unsure of his result: Optometrists order many tests with expensive machines to compensate for their lack of training and skills. They hope the machines answer will give them the answer. Rather than spend time with an optom, better to see an ophthalmologist who is fully trained in everything an optometrist knows and then has years of training beyond that including surgery. ...Read more

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When should I get my child's vision test?

Child eye exam: Usually the first exam (unless something is suspected) should be done around the age of three years so that any problem that could lead to a visual deficit can be treated and the process corrected. ...Read more

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How is this color vision test taken?

How is this color vision test taken?

Using a color chart: Using a standard color chart with colors easily distinguishable they are pointed to and you are asked to identify the colors. This test is done to identify color blindness which is a hereditary condition. ...Read more

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What does it mean if you fail a peripheral vision test?

You can't: This test is not one you can pass or fail. It is a measurement of what you can see in the peripheral vision. It can be normal or abnormal. ...Read more

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If you have amblyopia, what scores do you get on the vision chart tests?

If you have amblyopia, what scores do you get on the vision chart tests?

Varies widely: The depth of amblyopia generally depends upon the level of blur present during childhood. We generally see visions ranging from 20/30 to as poor as 20/400. Generally acuity improves with single letters which decreases visual confusion. ...Read more

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How can they test the vision of small children?

How can they test the vision of small children?

Opthalmologist: The opthalmologists and some pediatricians have vision screeners that can check infants and small children. ...Read more

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Why do they do that test for your field of vision?

Why do they do that test for your field of vision?

Many reasons: Field of vision tests are designed to check for abnormalities in your vision that may not be noticeable otherwise. Certain diseases have a particular pattern of field loss (ie glaucoma) and can help with diagnosis. ...Read more

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How good does your vision have to be in order to pass the test for the ame?

See below: According to the faa and 14 cfr part 67, for 1st & 2nd class airman: distance of 20/20 & near 20/40 at 16 inches (if over age 50, at 16 & 32 in) in each eye with/without lenses and normal fields of vision. For 3rd class, 20/40 at distance and near at 16 inches (any age). If lenses are needed, this will be noted on your faa certificate. There are other stipulations as well. See ecfr.Gpoaccess.Gov. ...Read more

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