Implications for dynamic visual acuity with changes in aged and sex.
Using a Landolt ring with a gap of 40' of arc which moved at a decreasing velocity until the gap was discriminated, we measured the dynamic visual acuity of 826 subjects, males and females ages 5 to 92 years, and found rapid development between the ages of 5 and 15 years. This experiment showed that dynamic discrimination peaked at age 15 and then declined at a constant rate from age 20 on. The discrimination of male subjects was superior to that of female subjects at most ages, but a significant sex difference was observed only at age 5. We speculate that males may have better discrimination than females but variability is substantial.
Aichi Institute of Technology, Toyota, Japan.
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Ishigaki
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Miyao
D000054:Acceleration; D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000375:Aging / Q000502:physiology*; D001288:Attention / Q000502:physiology; D002648:Child; D002675:Child, Preschool; D004193:Discrimination Learning / Q000502:physiology; D005133:Eye Movements / Q000502:physiology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009039:Motion Perception / Q000502:physiology*; D009949:Orientation / Q000502:physiology; D011603:Psychophysiology; D011930:Reaction Time / Q000502:physiology; D012160:Retina / Q000502:physiology; D012737:Sex Factors; D014792:Visual Acuity / Q000502:physiology*