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Effect of Yellow-Tinted Lenses on Visual Attributes Related to Sports Activities

100%

Kohmura Y., Murakami S., Aoki K.

Journal of Human Kinetics

2013

vol. 36

issue 1

27-36

The purpose of this study was to clarify the effect of colored lenses on visual attributes related to sports activities. The subjects were 24 students (11 females, 13 males; average age 21.0 ±1.2 years) attending a sports university. Lenses of 5 colors were used: colorless, light yellow, dark yellow, light gray, and dark gray. For each lens, measurements were performed in a fixed order: contrast sensitivity, dynamic visual acuity, depth perception, hand-eye coordination and visual acuity and low-contrast visual acuity. The conditions for the measurements of visual acuity and low-contrast visual acuity were in the order of Evening, Evening+Glare, Day, and Day+Glare. There were no significant differences among lenses in dynamic visual acuity and depth perception. For hand-eye coordination, time was significantly shorter with colorless than dark gray lenses. Contrast sensitivity was significantly higher with colorless, light yellow, and light gray lenses than with dark yellow and dark gray lenses. The low-contrast visual acuity test in the Day+Glare condition showed no significant difference among the lenses. In the Evening condition, lowcontrast visual acuity was significantly higher with colorless and light yellow lenses than with dark gray lenses, and in the Evening+Glare condition, low-contrast visual acuity was significantly higher with colorless lenses than with the other colors except light yellow. Under early evening conditions and during sports activities, light yellow lenses do not appear to have an adverse effect on visual attributes.

Effects of Yellow-Tinted Lenses on Visual Attributes Related to Sports Activities and Daily Life in Late Middle-aged Adults

88%

Kohmura Y., Murakami S., Someya Y., Aoki K.

Central European Journal of Sport Sciences and Medicine

2015

vol. 9

issue 1

27-36

The purpose of this study was to clarify the effects of colored lenses on the visual performance of middle-aged people. The subjects were 19 middle-aged people with a mean age of 57.4 ±6.0 years. Five different functional lenses were used in the experiments: colorless lenses and four colored lenses (Light-yellow, Dark-yellow, Light-gray, and Dark-gray). Using each lens type, contrast sensitivity, depth perception, hand–eye coordination, dynamic visual acuity, and visual acuity/low-contrast visual acuity were measured. Visual acuity/low-contrast visual acuity was measured under the four conditions of Evening, Evening + Glare, Day, and Day + Glare. Results showed that dynamic visual acuity and depth perception did not differ among the lens types, but hand–eye coordination measurements had a significantly shorter time with the Light-yellow and Dark-yellow lenses than the Dark-gray lenses. Low-contrast visual acuity under Evening and Evening + Glare conditions tended to be lower with the Dark lenses than the Colorless and Light-yellow lenses. The subjects rated the Yellow lenses as bright in a subjective questionnaire evaluation.

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1 Central European Journal of Sport Sciences and Medicine

1 Journal of Human Kinetics

1 2015

1 2013

2 Aoki K.

2 Kohmura Y.

2 Murakami S.

1 Someya Y.

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Effect of Yellow-Tinted Lenses on Visual Attributes Related to Sports Activities

Effects of Yellow-Tinted Lenses on Visual Attributes Related to Sports Activities and Daily Life in Late Middle-aged Adults