Your browser doesn't support javascript.
loading
The Effects of Glare on the Perception of Visual Motion as a Function of Age.
Sepulveda, Juan A; Wood, Joanne M; Anderson, Andrew J; McKendrick, Allison M.
Afiliación
  • Sepulveda JA; Department of Optometry and Vision Sciences, The University of Melbourne, Parkville, Victoria, Australia.
  • Wood JM; Centre for Vision and Eye Research, School of Optometry and Vision Science, Queensland University of Technology, Brisbane, Queensland, Australia.
  • Anderson AJ; Department of Optometry and Vision Sciences, The University of Melbourne, Parkville, Victoria, Australia.
  • McKendrick AM; Department of Optometry and Vision Sciences, The University of Melbourne, Parkville, Victoria, Australia.
Transl Vis Sci Technol ; 11(9): 11, 2022 09 01.
Article en En | MEDLINE | ID: mdl-36125791
Purpose: The purpose of this study was to determine the impact of glare, that simulated the effects of oncoming vehicle headlights, and age on different aspects of motion perception in central and peripheral vision. Methods: Twenty younger (mean age = 25 years, range = 20-32 years) and 20 older (mean age = 70 years, range = 60-79 years) visually healthy adults completed four visual motion tasks. Stimuli were presented centrally and at 15 degrees horizontal eccentricity for 2 viewing conditions: glare (continuous, off-axis) versus no glare. Motion tasks included minimum Gabor contrast required to discriminate direction of motion, translational global motion coherence, minimum duration of a Gabor to determine direction of motion (2 different size Gabors to determine spatial surround suppression), and biological motion detection in noise. Intraocular straylight was also measured (C-Quant). Results: Older adults had increased intraocular straylight compared with younger adults (P < 0.001). There was no significant effect of glare on motion thresholds in either group for motion contrast (P = 0.47), translational global motion (P = 0.13), biological motion (P = 0.18), or spatial surround suppression of motion (P = 0.29). Older adults had elevated thresholds for motion contrast (P < 0.001), biological motion (P < 0.001), and differences in surround suppression of motion (P = 0.04), relative to the younger group, for both the glare and no-glare conditions. Conclusions: Although older adults had elevated thresholds for some motion perception tasks, glare from a continuous off-axis light source did not further elevate these thresholds either in central or peripheral vision. Translational Relevance: A glare source that simulated the effect of oncoming headlights, did not impact motion perception measures relevant to driving.
Asunto(s)

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Conducción de Automóvil / Percepción de Movimiento Límite: Adult / Aged / Humans Idioma: En Revista: Transl Vis Sci Technol Año: 2022 Tipo del documento: Article País de afiliación: Australia Pais de publicación: Estados Unidos

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Conducción de Automóvil / Percepción de Movimiento Límite: Adult / Aged / Humans Idioma: En Revista: Transl Vis Sci Technol Año: 2022 Tipo del documento: Article País de afiliación: Australia Pais de publicación: Estados Unidos