Other countries express visual acuity in their own way. For onsistency, doctors of optometry in the United Sates use 20 feet as the standard for measuring sharpness of vision. 15/15 vision means normal sharpness of vision at 15 feet, just as 20/20 indicates normal sharpness of vision at 20 feet.
Is 15/15 vision better than 20/20 vision? Other important vision skills, including peripheral awareness or side vision, eye coordination, depth perception, focusing ability and color vision, contribute to your overall vision ability. 20/20 vision only indicates the sharpness or clarity of vision at a specific test distance. If you have 20/100 vision, you must be as close as 20 feet to see what a person with normal vision can see at 100 feet. If you have 20/20 vision, you can see clearly at 20 feet what should normally be seen at a distance. Visual Acuity FAQs What does 20/20 vision mean?Ģ0/20 vision is normal vision acuity (the clarity or sharpness of vision) measured at a distance of 20 feet. If the reduced vision is due to an eye disease, you may be prescribed ocular medication or another treatment. In most cases, your doctor of optometry can prescribe glasses, contact lenses or a vision therapy program that will help improve your vision. This condition may be caused by myopia (nearsightedness).Ī comprehensive eye examination by a doctor of optometry can diagnose what is affecting your ability to see well. Others can see items that are close but cannot see those far away. This condition can be caused by hyperopia (farsightedness) or presbyopia (loss of focusing ability). Some people can see well at a distance but are unable to bring nearer objects into focus. Other important vision skills, including peripheral awareness or side vision, eye coordination, depth perception, focusing ability and color vision, contribute to your overall visual ability. 20/20 vision only indicates the sharpness or clarity of vision at a distance. Having 20/20 vision does not necessarily mean you have perfect vision. If you have 20/100 vision, it means that you must be as close as 20 feet to see what a person with normal vision can see at 100 feet. If you have 20/20 vision, you can see clearly at 20 feet what should normally be seen at that distance. 20/20 vision is a term used to express normal visual acuity (the clarity or sharpness of vision) measured at a distance of 20 feet.
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