Visual acuity at distance can also be recorded using the metric or decimal systems. When the testing is at 6 meters (close to 20 feet), the normal visual acuity is recorded as 6/6. The decimal system uses the numeric equivalent of the fractional notation: 20/20 or 6/6 is a visual ac...
The meaning of VISUAL ACUITY is the relative ability of the visual organ to resolve detail that is usually expressed as the reciprocal of the minimum angular separation in minutes of two lines just resolvable as separate and that forms in the average hum
Dynamic visual acuity (DVA) is defined as the ability to discriminate the fine parts of a moving object. DVA is generally better in athletes than in non-athletes, and the better DVA of athletes has been attributed to a better ability to track moving objects. In the present study, we hypot...
The meaning of VISUAL AID is an instructional device (such as a chart, map, or model) that appeals chiefly to vision; especially : an educational motion picture or filmstrip.
(J1, J3, etc.). When near visual acuity is tested, presbyopic patients older than 40 years of age should wear their reading glasses or bifocals. Near acuities are not as accurate as those obtained at distance, especially when the card is not held at the requisite distance specified on the...
KANOSUE. Dynamic Visual Acuity in Baseball Players Is Due to Superior Tracking Abilities. Med. Sci. Sports Exerc., Vol. 45, No. 2, pp. 319-325, 2013. Purpose: Dynamic visual acuity (DVA) is defined as the ability to discriminate the fine parts of a moving object. DVA is generally ...
根据第一段中的句子“As is the case with many of life’s blessings, our visual acuity is often regarded with a sense of complacency until it commences to present us with challenges. It is only when we encounter impediments in perusing the daily publications and begin to suffer from cephalalgi...
Visual Acuity as a Function of Zernike Mode and Level of Root Mean Square Error Background.The coefficients of normalized Zernike expansion are orthogonal and reflect the relative contribution of each mode to the total root mean square... R Applegate,C Ballentine,H Gross,... - 《Optometry & ...
A. ( 2003a ) Visual acuity as a function of Zernike mode and level of root mean square error . Optom. Vis. Sci. 80 , 9 – 105 .Applegate RA, Ballentine C, Gross H, Sarver EJ, Sarver CA. Visual acuity as a function of Zernike mode and level of root mean square error . Optom ...
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