Vision Test Information


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Eye doctors to determine the visual acuity of a patient use a Vision Test.

They usually use something called a Snellen Chart, which is a board with rows of numbers that increasingly get smaller as they go down.

If you've ever been to get your eye's examined you probably used one. These tests can be conducted anywhere, even though they're normally done in the doctor's office.

Sometimes an eye doctor will pay special visits to elementary schools or middle schools to do Eyesight Testing of the children there.

If you already wear Prescription Glasses or Contacts, you will need to take them off before starting the Eyesight Test.

The ophthalmologist will then position you in a seated or standing position exactly 20 feet in front of the vision test chart. You start with both eyes open, and then cover one of your eyes with either your hand or a spoon provided by the doctor.

The doctor will ask you to read down the lines of numbers until they are too small for you to see. After you get to the point where you can't read any further, you will be asked to remove your hand from your eye and cover your other eye.

You complete the vision test one more time, allowing the doctor to get accurate readings for both of your eyes.

If you're being tested for glasses or to change your prescription strength, you will use a special machine that has multiple lenses of different strengths that can be slipped down over your eyes.

The ophthalmologist will ask you if number 1 or number 2 is better, and from there go on to a different strength until he finds the strength that allows you to see the best.

When you get the results back from your vision test, they'll be in a fraction, for example 20/20. Most people are familiar with those numbers, or the phrase “20 20 Vision,” but you might not know what they stand for.

The first number simply indicates the distance in feet that you are standing from the chart. It's usually standardized to 20 feet unless it's a special situation.

The second number is how far away an individual with normal eyesight could read the last line you read. Therefore, 20 20 Eyesight is normal vision, but that doesn't mean it's the best vision you could have.

If your doctor tells you that you have 20/40 vision, it means that your vision isn't quite as good as a normal person's. While you have to stand at 20 feet to read a line, a normal person could stand 40 feet away and read the same line.

Vision is usually varied between the eyes, and you may have 20 20 Eyesight in one eye and 20/40 vision in the other eye.

If you go the opposite direction, you may have 20/10 vision, which means that a normal person would have to stand 10 feet away to read something that you can read at 20 feet.

Always Protect Your Eyesight by seeing an Eye Care Professional or Eye Care Specialist for regular checkups.


Learn which eye vitamins naturally improve eye health. The Rebuild Your Vision Ocu-Plus Formula was designed to improve vision and eye health, and help people with Macular Degeneration, Glaucoma, and Cataracts.

Learn which eye vitamins naturally improve eye health. The Rebuild Your Vision Ocu-Plus Formula was designed to improve vision and eye health, and help people with Macular Degeneration, Glaucoma, and Cataracts.
Learn which eye vitamins naturally improve eye health. The Rebuild Your Vision Ocu-Plus Formula was designed to improve vision and eye health, and help people with Macular Degeneration, Glaucoma, and Cataracts.


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