eye tracker viewpoint eyetracker® system  (Arrington Research)

Journal: Investigative Ophthalmology & Visual Science

Article Title: Effects of Narrowband Light on Choroidal Thickness and the Pupil

doi: 10.1167/iovs.61.10.40

Figure Lengend Snippet: ( A ) Experimental protocol. Subjects first underwent a 10-minute distance viewing task under 60 lux room illumination. OCT imaging, ocular biometry, and pupil measurements were conducted before and after a 1-hour exposure condition. ( B ) Pupil stimulation protocol. Five minutes of dark adaptation was followed by 10 seconds of baseline pupil diameter recording. Three 1-second red and three 1-second blue stimuli were presented in alternating order, with a 60-second interstimulus interval.

Article Snippet: The pupillometry protocol has been described in detail previously., A frame mounted eye tracker with infrared illumination (Viewpoint EyeTracker, Arrington Research, Scottsdale, AZ) was used to record the pupil diameter of the right eye at 60 Hz.

Techniques: Imaging

Journal: Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists)

Article Title: Attenuation of short wavelengths alters sleep and the ipRGC pupil response

doi: 10.1111/opo.12385

Figure Lengend Snippet: Pupil metrics. Key. s: seconds; PIPR: post illumination pupil response; AUC: area under the curve.

Article Snippet: The left eye was dilated with 2.5% phenylephrine and 1% tropicamide, and a frame mounted binocular eye tracker with infrared illumination (ViewPoint EyeTracker, http://www.arringtonresearch.com ) was used to record the pupil size of the right eye at 60 Hz.

Techniques:

Journal: Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists)

Article Title: Attenuation of short wavelengths alters sleep and the ipRGC pupil response

doi: 10.1111/opo.12385

Figure Lengend Snippet: Pupil diameter of the right eye during a 1 s long wavelength stimulus (red trace) presented to the left eye, overlaid with the pupil diameter during a 1 s short wavelength stimulus (blue trace) for one representative subject. ‡ indicates the maximum pupil constriction, dotted and dashed lines show where the 6 s and 30 s PIPR (post illumination pupil response) are measured, + indicates the melanopsin oscillatory responses. The area under the curve (AUC) for the blue stimulus is shaded grey, and is calculated with respect to the normalised pupil size.

Article Snippet: The left eye was dilated with 2.5% phenylephrine and 1% tropicamide, and a frame mounted binocular eye tracker with infrared illumination (ViewPoint EyeTracker, http://www.arringtonresearch.com ) was used to record the pupil size of the right eye at 60 Hz.

Techniques:

Journal: Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists)

Article Title: Attenuation of short wavelengths alters sleep and the ipRGC pupil response

doi: 10.1111/opo.12385

Figure Lengend Snippet: Post illumination pupil response (PIPR) metrics to 1 s and 5 s long wavelength (red) and short wavelength (blue) stimuli before (solid bars) and after (open bars) wearing blue blocking glasses at night-time for 2 weeks. (a) normalised minimum pupil diameter, (b) area under the curve (AUC), (c) 6 s PIPR, and (d) 30 s PIPR. * indicates P < 0.05.

Article Snippet: The left eye was dilated with 2.5% phenylephrine and 1% tropicamide, and a frame mounted binocular eye tracker with infrared illumination (ViewPoint EyeTracker, http://www.arringtonresearch.com ) was used to record the pupil size of the right eye at 60 Hz.

Techniques: Blocking Assay