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Because many specifications state that near distance vision acuity shall be J1 (or J2) "at a distance of not less than 12 inches," many people believe that they can move the reading card in to 300 mm (12 in.) and they will get a J1 or J2 eye examination.What is the vision acuity equivalent of each Jaeger designation?
The vision acuity equivalent of each Jaeger designation depends on the distance at which the chart is held. This image has been scaled and r oc esdfp ubl iat nmv x .What is an ajjaeger eye chart?
jaeger eye chart: Eye chart used for near vision acuity examinations. near vision: Vision of objects nearby, generally within arm’s length. vision acuity: Ability to distinguish fine details visually. Quantitatively, it is the reciprocal of the minimum angular separation in minutes of two lines of width subtending one minute of arc when theWhat is a distance visual acuity (VVA) test?
During an eye test, your optician will use a chart of letters ("eye chart") to measure how well you see objects at least 6 meters (20 feet) away. This is called distance visual acuity testing. If you haven't had an eye exam recently, click here to find an optometrist near you.