What is 20/20 vision? 20/20 vision is described by the American Optometric Association as the term used to define what normal eyesight or visual acuity (sharpness of vision) is, which is measured at a distance of 20 feet. Therefore, if you have 20/20 eyesight this means that you are able to see clearly at a distance of 20 feet what a person with normal eyesight would normally see at that particular distance.
A visual acuity is defined as the number that indicates the sharpness or clarity of your vision. Visual acuity is measured by the Snellen chart. This is an eye chart that shows a series of 11 rows of capital letters with the top row consisting of a large capital E with a series of other letters that become progressively smaller as their corresponding visual acuity number decreases.
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What is 20/30 vision? - Basically, this means that a person with 20/30 vision can see clearly at 20 feet, what a person with normal eyesight can see at 30 feet.
20/40 Vision- This means that when you are 20 feet away from the eye chart you can see what a normal person can see when standing at a 40 foot distance from the eye chart. This can also be explained a different way. This means that a person's vision is only half as good as an individual who possesses normal eyesight. According to The Department of Motor Vehicles, 20/40 vision in both eyes with or without glasses or contacts is considered acceptable vision that is required in order to pass the vision test for a driver's license.
20/80 Vision- With this particular visual acuity, you can only see clearly at 20 feet what a person with normal vision would be able to see at a distance of 80 Feet. This level of visual acuity according to the Social Security Administration is not bad to the extent that a person can be placed into the category of legal blindness, however, this particular kind of eyesight requires a person to use glasses in order to perform basic tasks like reading, writing and driving.
20/200 Vision- In the United States, a person who has eyesight that is unable to be corrected better than 20/200 in the best eye, or possesses 20 degrees or less of visual field remaining is considered legally blind. According to the American Optometric Association this level of eyesight is considered severe visual impairment (severe low vision).
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While the commonly prescribed treatment for vision conditions is glasses this vision correction solution often masks the symptoms of eye disorders thereby never really addressing the root causes of vision conditions. Did you know that an effective natural alternative to improve vision without glasses or contacts exists? This is called a program of eye exercises. This is a method that can help your eyesight even in cases whereby your vision is very poor. Such a program can enable you to regain better natural eyesight.
These easy to perform vision improvement techniques can help you to re-train your eyes to heal themselves regardless of the type of vision condition you are suffering from whether or not its nearsightedness, farsightedness or astigmatism.
Visual Acuity is a number that indicates the sharpness or clarity of your vision. This visual acuity is measured by an eye chart called the Snellen chart and is denoted by a series of fractions. Regardless of how weak your prescription number may be the good news is that eye exercises can help improve your eyesight by strengthening the eye muscles and increasing the focusing power of the eyes. Through the diligent practice of these simple vision improvement techniques on a daily basis, you can restore and rebuild the natural function of your eyes once again. Ultimately, with this natural vision improvement correction method, you can achieve clearer, sharper, better natural eyesight without glasses.
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