Pupil dynamics with periodic flashes: effect of age on mesopic adaptation

Bárbara Silva; Ana Sfer; Marcela A. D’Urso Villar; Luis Alberto Issolio; Elisa M. Colombo

doi:10.1364/JOSAA.33.001546

Journal of the Optical Society of America A
Vol. 33,
Issue 8,
pp. 1546-1552
(2016)
•https://doi.org/10.1364/JOSAA.33.001546

Pupil dynamics with periodic flashes: effect of age on mesopic adaptation

Bárbara Silva, Ana Sfer, Marcela A. D’Urso Villar, Luis Alberto Issolio, and Elisa M. Colombo

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Bárbara Silva, Ana Sfer, Marcela A. D’Urso Villar, Luis Alberto Issolio, and Elisa M. Colombo, "Pupil dynamics with periodic flashes: effect of age on mesopic adaptation," J. Opt. Soc. Am. A 33, 1546-1552 (2016)

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Table of Contents Category
- Vision and Visual Optics
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About this Article
History
- Original Manuscript: April 7, 2016
- Revised Manuscript: June 7, 2016
- Manuscript Accepted: June 10, 2016
- Published: July 15, 2016
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Virtual Journal for Biomedical Optics Vol. 11, Iss. 9

Abstract

The purpose of this study is to determine the pupillary dynamics with periodical flashes from a peripheral glare source, in similar conditions to night driving, while focusing on dependence with age. We measured two groups of people: youth and adults. Maximum pupil size decreases due to periodic flashes. Latency does not present significant differences. The reduction of pupil size is greater for older adults. The presence of a peripheral and periodic glare source modifies the pupil size. This leads to a reduction of retinal illuminance, which is greater for older adults.

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Age Group	Luminance [ $cd / m^{2}$ ]	${DP}_{MAX0}$ [mm]	${DP}_{MAX1}$ [mm]	${DP}_{MAX15}$ [mm]	${DP}_{MAX30}$ [mm]
Youth	*0,1*	5,88	5,18	4,92	4,67
	*0,2*	5,71	4,94	4,7	4,47
	*0,5*	5,61	4,89	4,65	4,43
Older Adults	*0,1*	4,7	3,7	3,56	3,43
	*0,2*	4,45	3,57	3,45	3,32
	*0,5*	4,32	3,54	3,42	3,3

Groups	Background Luminance [ $cd / m^{2}$ ]	$\frac{E_{r 30}}{E_{r 0}} %$	Average $(1 - \frac{E_{r 30}}{E_{r 0}}) %$
Youth	0,1	63	38
	0,2	61
	0,5	62
Older Adults	0,1	53	44
	0,2	56
	0,5	58

Background Luminance [ $cd / m^{2}$ ]	Young	DP [mm] Moon and Spencer Model	Older Adults	DP [mm] Moon and Spencer Model Corrected for Older Adults
0,1	5,88	6,04	4,70	4,92
0,2	5,71	5,72	4,45	4,80
0,5	5,61	5,26	4,32	4,72

Age Group	Luminance [ $cd / m^{2}$ ]	${DP}_{MAX0}$ [mm]	${DP}_{MAX1}$ [mm]	${DP}_{MAX15}$ [mm]	${DP}_{MAX30}$ [mm]
Youth	*0,1*	5,88	5,18	4,92	4,67
	*0,2*	5,71	4,94	4,7	4,47
	*0,5*	5,61	4,89	4,65	4,43
Older Adults	*0,1*	4,7	3,7	3,56	3,43
	*0,2*	4,45	3,57	3,45	3,32
	*0,5*	4,32	3,54	3,42	3,3

Groups	Background Luminance [ $cd / m^{2}$ ]	$\frac{E_{r 30}}{E_{r 0}} %$	Average $(1 - \frac{E_{r 30}}{E_{r 0}}) %$
Youth	0,1	63	38
	0,2	61
	0,5	62
Older Adults	0,1	53	44
	0,2	56
	0,5	58

Abstract

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Journal of the Optical Society of America A