Measurement of the eye pupil response to light stimuli with regulated waveform, wavelength and photopic level

Sobaszek, A.; Nowak, Wioletta; Hachoł, A.; Moroń, Z.

doi:10.1088/1742-6596/238/1/012032

Cited by 5 publications

(8 citation statements)

References 13 publications

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“…Studies describe chromatic changes in size [2][3] from red to blue. In contrast in this study, Lt is analyzed with a sample time of 7 ms observing that red is slower than the other.…”

Section: Discusionmentioning

confidence: 99%

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Pupillary Latency in Chromatic High speed Video-oculography

Sánchez

Suaste

2017

VII Latin American Congress on Biomedical Engineering CLAIB 2016, Bucaramanga, Santander, Colombia, October 26th -28th, 2016

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Abstract-to know characteristics of pupillary reflex are useful in medical diagnosis. In this way High Speed Videooculography (HSV) let to observe pupillary modifications in time more accurately than other video techniques. Differences till 7 ms are possible to measure with HSV in this application. The purpose of this study is to determine if there is a difference in Latency Time (LT) when pupillary reflex is stimulated with three isoluminant chromatic stimuli. The observations obtained from 15 people exhibit red color evoke a slower pupillary contraction than green and blue in a luminance level of 29 cd/m 2 .

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“…Studies describe chromatic changes in size [2][3] from red to blue. In contrast in this study, Lt is analyzed with a sample time of 7 ms observing that red is slower than the other.…”

Section: Discusionmentioning

confidence: 99%

“…Pupillary characteristics have been studied with flicker chromatic lights increasing luminance levels (blue, green and red) [1][2][3][4]. Kimura E and Young R. observed pupillary responses to six chromatic stimuli [5].…”

Section: Introductionmentioning

confidence: 99%

Pupillary Latency in Chromatic High speed Video-oculography

Sánchez

Suaste

2017

VII Latin American Congress on Biomedical Engineering CLAIB 2016, Bucaramanga, Santander, Colombia, October 26th -28th, 2016

View full text Add to dashboard Cite

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“…Each one is characterized by measuring it's reflectance spectrum; it will be helpful when pupillary responses will be analyzed. Previous studies can be considered in this aspect [13][14][15][16][17][18].…”

Section: Stimulimentioning

confidence: 99%

“…Experiments with flicker chromatic lights of equal and different luminance levels have been done; specifically using blue, green and red stimulus [13][14][15][16]. Kimura E. and Young R. studied pupil responses to 6 wavelengths [17].…”

Section: Introductionmentioning

confidence: 99%

“…Rodríguez D. and Suaste E. analyzed pupil responses from 400 to 600 nm [18]. Video techniques or image based methods called Video-oculography (VOG), have been employed in the study of pupillary responses [3,8,10,12,14,18,19] with capture ranges of 20, 25 and 102.4 Hz [3,10,12] and pupilometers [17]. High speed videooculography (HSV) [5,20] is a technique used in eye tracking systems [21], the study of mice speed movements [22], nistagmus analysis [23], and for pupil dynamic analysis with white light.…”

Section: Introductionmentioning

confidence: 99%

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