Study About Tinted Lenses

EYE DIFFERENCE OF NON ATHLETES VS ATHLETES

A study by Hisaoishigaki and Masaru Miyao on 1993, entitiled “Differences in Dynamic Visual Acuity Between Athletes and Nonathletes.” studied he dynamic visual acuity of

53iversity athletes and 46 non athlete university students using a Landolt C as targets. They took the baseline of the subjects by moving the targets left to right and recording up until where they were able to correctly recognize the gaps. When the gap sizes were at 42’ and 28’, there were no significant differences in the answers of the athletes from the nonathletes. But whene the gaps were at 14’ and 8’, the athletes performance was more superior than that of the nonathletes.

Parallel Study

A study titled DOUBLE-MASKED PLACEBO-CONTROLLED TRIAL OF PRECISION SPECTRAL FILTERS IN CHILDREN WHO USE COLOURED OVERLAYS

by A. J. Wilkins 1, B. J. W. Evans 2, j. A. Brown 3, A. E. Busby 4, A. E. Wingfield 5, R. J. Jeanes 1 and j. Bald' states that the researchers selected 68 children who were tested to use sheets of colored plastic to place on top of a reading material when reading, and use it regularly. The children viewed the reading material which was illuminated by colored light inside an apparatus that allowed them to manipulation the hue or color of the target, and saturation or depth of color, at constant amount of light. Many of the children reported improvements in perception when the light had a chromaticity within a limited range, which was different for each individual. A pair of plastic 'experimental' lenses, which was dyed so it would give the appropriate amount of chromaticity under conventional white fluorescent light. And an additional pair, or the ‘controlled’ lenses was also prepared and used in the study. The controlled lenses, also having very similar color to the experimental lenses, but with a chromaticity outside the range in which perception was reported to improve. For 1 month, each pair was used in a random order. 36 children...