The term 20/20 vision indicates that a human being can see at a certain distance and distinguish a pair of items at one time with each eye. A person with visual acuity of twenty feet is considered the norm from an optical viewpoint.
The first 20 refers to the distance the person is being tested from and the second 20 refers to how far away a person can read letters from the Snellen Chart. In other words a person with 20/100 can read the chart from 100 feet away. Dutch Ophthalmologist Dr. Herman Snellen developed this testing device in 1862.
An optometrist seeks to achieve 20/20 vision from each patient utilizing, if necessary, an eyeglass prescription. The ultimate human visual capability is approximately 20/10. 20/20 is considered superior vision. The viewer may not have perfect seeing ability although they have normal visual acuity. Individuals can have other eye related problems such as poor depth perception, minimal peripheral vision and astigmatisms.
The best way to obtain 20/20 vision, if you don’t have it, is by using glasses, contact lenses or getting Lasik Surgery. Your eye doctor can help you determine what is best for you. To ensure satisfaction licensed opticians offer personalized services to help those who want to achieve 20/20 vision. They offer a wide range of corrective devices and techniques to make you feel comfortable when looking out in today’s world.

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