Trial Outcomes & Findings for Visual Activity Evoked by Infrared in Humans After Dark Adaptation (NCT NCT02909985)

NCT ID: NCT02909985

Last Updated: 2024-12-13

Results Overview

We measured the minimum threshold intensities (uW) via subjective perception of near IR light (900 - 1400 nm) in 50 nm intervals. After 30 minutes of dark adaptation and over three trials, participants verbalized by saying 'yes' to the minimal intensity they could see the IR stimulus as the power source for the light was slowly increased from 0V to 12 V. The voltage was averaged for the three trials at each wavelength. Analysis of variance was used to evaluate the effect of the wavelength on the threshold intensity. This was done for two groups/arms, one with normal color vision and one with colorblind vision.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

21 participants

Primary outcome timeframe

after 30 minutes of dark adaptation, up to 2 hours

Results posted on

2024-12-13

Participant Flow

Healthy adult participants with normal vision or who are colorblind were recruited using the University of New Mexico CTSC Clinical Research Volunteer Registry (HRRC 06-412), a Craigslist advertisement, and word of mouth.

Participant milestones

Participant milestones
Measure
Visual Response to IR
1. 15 healthy participants described IR light passing through narrow bandpass filters over a broad spectrum light source 2. 6 colorblind participants described IR light passing through narrow bandpass filters over a broad spectrum light source All participants signed informed consent, demographics, general and visual health information, and a Snellen eye exam was collected. An Ishihara Plate Test and modified Farnsworth D-15 test were obtained for those with color blindness. For both groups, as the intensity was increased from 0 to 12 V, participants said if/when they saw a visual response to infrared light from a broadband Tungsten halogen light with narrow bandpass filters ranging from 850 nm to 1400 nm. At the end of three trials per filter, the intensity was turned up to 12 V, and participants described the color they saw.
Overall Study
STARTED
21
Overall Study
COMPLETED
21
Overall Study
NOT COMPLETED
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Visual Activity Evoked by Infrared in Humans After Dark Adaptation

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Visual Response to IR in Colorvision Eyes
n=15 Participants
The goal of this aim is to determine which wavelength and intensity of IR the human eye with normal color vision is most sensitive to. This arm includes those with normal color vision who will be exposed to a range of IR wavelengths using a broad-spectrum light source with wavelength-specific bandpass filters in the IR range. Participants will give verbal feedback on when they can see the stimulus over three trials at each wavelength, and then describe the color they see when the light is set at 12 V.
Visual Response to IR in Colorblind Eyes
n=6 Participants
The goal of this aim is to determine which wavelength and intensity of IR the human eye with colorblindness is most sensitive to. This arm includes those with colorblind vision who will be exposed to a range of IR wavelengths using a broad-spectrum light source with wavelength-specific bandpass filters in the IR range. Participants will give verbal feedback on when they can see the stimulus over three trials at each wavelength, and then describe the color they see when the light is set at 12 V.
Total
n=21 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=93 Participants
0 Participants
n=4 Participants
0 Participants
n=27 Participants
Age, Categorical
Between 18 and 65 years
15 Participants
n=93 Participants
5 Participants
n=4 Participants
20 Participants
n=27 Participants
Age, Categorical
>=65 years
0 Participants
n=93 Participants
1 Participants
n=4 Participants
1 Participants
n=27 Participants
Age, Continuous
37.6 years
n=93 Participants
45.7 years
n=4 Participants
40 years
n=27 Participants
Sex: Female, Male
Female
6 Participants
n=93 Participants
0 Participants
n=4 Participants
6 Participants
n=27 Participants
Sex: Female, Male
Male
9 Participants
n=93 Participants
6 Participants
n=4 Participants
15 Participants
n=27 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
3 Participants
n=93 Participants
1 Participants
n=4 Participants
4 Participants
n=27 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
12 Participants
n=93 Participants
5 Participants
n=4 Participants
17 Participants
n=27 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=93 Participants
0 Participants
n=4 Participants
0 Participants
n=27 Participants
Race (NIH/OMB)
American Indian or Alaska Native
2 Participants
n=93 Participants
0 Participants
n=4 Participants
2 Participants
n=27 Participants
Race (NIH/OMB)
Asian
0 Participants
n=93 Participants
0 Participants
n=4 Participants
0 Participants
n=27 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=93 Participants
1 Participants
n=4 Participants
1 Participants
n=27 Participants
Race (NIH/OMB)
Black or African American
0 Participants
n=93 Participants
0 Participants
n=4 Participants
0 Participants
n=27 Participants
Race (NIH/OMB)
White
13 Participants
n=93 Participants
5 Participants
n=4 Participants
18 Participants
n=27 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=93 Participants
0 Participants
n=4 Participants
0 Participants
n=27 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=93 Participants
0 Participants
n=4 Participants
0 Participants
n=27 Participants
Region of Enrollment
United States
15 participants
n=93 Participants
6 participants
n=4 Participants
21 participants
n=27 Participants

PRIMARY outcome

Timeframe: after 30 minutes of dark adaptation, up to 2 hours

Population: Adults with normal color vision and colorblind vision were evaluated for the minimal threshold intensity (uW) at which they could subjectively perceive IR as the light was slowly increased from 0-12 V. The average of three trials per IR wavelength was obtained.

We measured the minimum threshold intensities (uW) via subjective perception of near IR light (900 - 1400 nm) in 50 nm intervals. After 30 minutes of dark adaptation and over three trials, participants verbalized by saying 'yes' to the minimal intensity they could see the IR stimulus as the power source for the light was slowly increased from 0V to 12 V. The voltage was averaged for the three trials at each wavelength. Analysis of variance was used to evaluate the effect of the wavelength on the threshold intensity. This was done for two groups/arms, one with normal color vision and one with colorblind vision.

Outcome measures

Outcome measures
Measure
Normal Color Vision
n=15 Participants
Average of minimal intensity at which participants would see the IR stimulus for three trials at each wavelength. Analysis of variance was used to evaluate the effect of the wavelength on the threshold intensity.
Colorblind Vision
n=6 Participants
Average of minimal intensity at which participants would see the IR stimulus for three trials at each wavelength. Analysis of variance was used to evaluate the effect of the wavelength on the threshold intensity.
Visual Perception to Infrared: Mean Minimal Intensity (uW) at Which Participants Could See IR Between 900 - 1400 nm.
850 nm
0.671770454 uW
Standard Deviation 0.099031306
0.809204 uW
Standard Deviation 0.141801
Visual Perception to Infrared: Mean Minimal Intensity (uW) at Which Participants Could See IR Between 900 - 1400 nm.
900 nm
0.205456012 uW
Standard Deviation 0.037481007
0.222247 uW
Standard Deviation 0.042895
Visual Perception to Infrared: Mean Minimal Intensity (uW) at Which Participants Could See IR Between 900 - 1400 nm.
950 nm
0.281608408 uW
Standard Deviation 0.070729646
0.545299 uW
Standard Deviation 0.571049
Visual Perception to Infrared: Mean Minimal Intensity (uW) at Which Participants Could See IR Between 900 - 1400 nm.
1000 nm
1.144748348 uW
Standard Deviation 0.607965504
1.056031 uW
Standard Deviation 0.792399
Visual Perception to Infrared: Mean Minimal Intensity (uW) at Which Participants Could See IR Between 900 - 1400 nm.
1050 nm
1.272084129 uW
Standard Deviation 0.672594905
1.397371 uW
Standard Deviation 0.90500
Visual Perception to Infrared: Mean Minimal Intensity (uW) at Which Participants Could See IR Between 900 - 1400 nm.
1150 nm
1.353030502 uW
Standard Deviation 0.911531487
2.144498 uW
Standard Deviation 1.049761
Visual Perception to Infrared: Mean Minimal Intensity (uW) at Which Participants Could See IR Between 900 - 1400 nm.
1200 nm
0.345439815 uW
Standard Deviation 0.143985558
0.422416 uW
Standard Deviation 0.119660
Visual Perception to Infrared: Mean Minimal Intensity (uW) at Which Participants Could See IR Between 900 - 1400 nm.
1100 nm
0.258018884 uW
Standard Deviation 0.089276004
0.367814 uW
Standard Deviation 0.205764
Visual Perception to Infrared: Mean Minimal Intensity (uW) at Which Participants Could See IR Between 900 - 1400 nm.
1250 nm
0.341422349 uW
Standard Deviation 0.194358383
0.505195 uW
Standard Deviation 0.229724
Visual Perception to Infrared: Mean Minimal Intensity (uW) at Which Participants Could See IR Between 900 - 1400 nm.
1300 nm
0.153133406 uW
Standard Deviation 0.097493319
0.198776 uW
Standard Deviation 0.095276
Visual Perception to Infrared: Mean Minimal Intensity (uW) at Which Participants Could See IR Between 900 - 1400 nm.
1350 nm
0.119277641 uW
Standard Deviation 0.0881392
0.182666 uW
Standard Deviation 0.067348
Visual Perception to Infrared: Mean Minimal Intensity (uW) at Which Participants Could See IR Between 900 - 1400 nm.
1400 nm
0.419039248 uW
Standard Deviation 0.158978102
0.601534 uW
Standard Deviation 0.184694

SECONDARY outcome

Timeframe: after 30 minutes of dark adaptation, up to 2 hours

Population: Adult participants who have normal color vision and those who are colorblind will be dark adapted for 30 minutes and then complete outcome measure 1 followed by outcome measure 2, in which the light source will be increased to a maximum of 12 V, and the participant will give a subjective description of color for each wavelength between 850 - 1400 nm in 50nm increments. Note\* Unable to add color chart results reported as 'color' to outcome measure data table.

A subjective description of color was given by each participant for each wavelength between 850 - 1400nm while at 12V.

Outcome measures

Outcome measures
Measure
Normal Color Vision
n=15 Participants
Average of minimal intensity at which participants would see the IR stimulus for three trials at each wavelength. Analysis of variance was used to evaluate the effect of the wavelength on the threshold intensity.
Colorblind Vision
n=6 Participants
Average of minimal intensity at which participants would see the IR stimulus for three trials at each wavelength. Analysis of variance was used to evaluate the effect of the wavelength on the threshold intensity.
Description of Color
Color perception at 1400 λ · White
0 Participants
0 Participants
Description of Color
Color perception at 850 λ · Red
12 Participants
4 Participants
Description of Color
Color perception at 850 λ · Dark Red
3 Participants
0 Participants
Description of Color
Color perception at 850 λ · Orange
0 Participants
1 Participants
Description of Color
Color perception at 850 λ · Yellow
0 Participants
0 Participants
Description of Color
Color perception at 850 λ · Light brown
0 Participants
0 Participants
Description of Color
Color perception at 850 λ · Light blue
0 Participants
0 Participants
Description of Color
Color perception at 850 λ · Blue
0 Participants
0 Participants
Description of Color
Color perception at 850 λ · Light Purple
0 Participants
0 Participants
Description of Color
Color perception at 850 λ · White
0 Participants
0 Participants
Description of Color
Color perception at 850 λ · Grey
0 Participants
0 Participants
Description of Color
Color perception at 850 λ · Teal Green
0 Participants
0 Participants
Description of Color
Color perception at 850 λ · Green
0 Participants
1 Participants
Description of Color
Color perception at 850 λ · Light Green
0 Participants
0 Participants
Description of Color
Color perception at 850 λ · Black (no color)
0 Participants
0 Participants
Description of Color
Color perception at 850 λ · Pink
0 Participants
0 Participants
Description of Color
Color perception at 900 λ · Red
4 Participants
1 Participants
Description of Color
Color perception at 900 λ · Dark Red
1 Participants
0 Participants
Description of Color
Color perception at 900 λ · Orange
7 Participants
2 Participants
Description of Color
Color perception at 900 λ · Yellow
0 Participants
0 Participants
Description of Color
Color perception at 900 λ · Light brown
0 Participants
0 Participants
Description of Color
Color perception at 900 λ · Light blue
0 Participants
0 Participants
Description of Color
Color perception at 900 λ · Blue
0 Participants
0 Participants
Description of Color
Color perception at 900 λ · Light Purple
0 Participants
0 Participants
Description of Color
Color perception at 900 λ · White
0 Participants
0 Participants
Description of Color
Color perception at 900 λ · Grey
0 Participants
0 Participants
Description of Color
Color perception at 900 λ · Teal Green
0 Participants
1 Participants
Description of Color
Color perception at 900 λ · Green
0 Participants
1 Participants
Description of Color
Color perception at 900 λ · Light Green
0 Participants
1 Participants
Description of Color
Color perception at 900 λ · Black (no color)
1 Participants
0 Participants
Description of Color
Color perception at 900 λ · Pink
2 Participants
0 Participants
Description of Color
Color perception at 950 λ · Red
0 Participants
1 Participants
Description of Color
Color perception at 950 λ · Dark Red
1 Participants
0 Participants
Description of Color
Color perception at 950 λ · Orange
4 Participants
0 Participants
Description of Color
Color perception at 950 λ · Yellow
2 Participants
2 Participants
Description of Color
Color perception at 950 λ · Light brown
5 Participants
0 Participants
Description of Color
Color perception at 950 λ · Light blue
0 Participants
0 Participants
Description of Color
Color perception at 950 λ · Blue
0 Participants
0 Participants
Description of Color
Color perception at 950 λ · Light Purple
1 Participants
0 Participants
Description of Color
Color perception at 950 λ · White
1 Participants
0 Participants
Description of Color
Color perception at 950 λ · Grey
0 Participants
1 Participants
Description of Color
Color perception at 950 λ · Teal Green
0 Participants
0 Participants
Description of Color
Color perception at 950 λ · Green
0 Participants
0 Participants
Description of Color
Color perception at 950 λ · Light Green
0 Participants
1 Participants
Description of Color
Color perception at 950 λ · Black (no color)
0 Participants
0 Participants
Description of Color
Color perception at 950 λ · Pink
1 Participants
1 Participants
Description of Color
Color perception at 1000 λ · Red
1 Participants
0 Participants
Description of Color
Color perception at 1000 λ · Dark Red
0 Participants
0 Participants
Description of Color
Color perception at 1000 λ · Orange
1 Participants
0 Participants
Description of Color
Color perception at 1000 λ · Yellow
0 Participants
0 Participants
Description of Color
Color perception at 1000 λ · Light brown
0 Participants
0 Participants
Description of Color
Color perception at 1000 λ · Light blue
1 Participants
0 Participants
Description of Color
Color perception at 1000 λ · Blue
0 Participants
0 Participants
Description of Color
Color perception at 1000 λ · Light Purple
0 Participants
0 Participants
Description of Color
Color perception at 1000 λ · White
1 Participants
1 Participants
Description of Color
Color perception at 1000 λ · Grey
0 Participants
0 Participants
Description of Color
Color perception at 1000 λ · Teal Green
1 Participants
0 Participants
Description of Color
Color perception at 1000 λ · Green
0 Participants
0 Participants
Description of Color
Color perception at 1000 λ · Light Green
0 Participants
0 Participants
Description of Color
Color perception at 1000 λ · Black (no color)
10 Participants
5 Participants
Description of Color
Color perception at 1000 λ · Pink
0 Participants
0 Participants
Description of Color
Color perception at 1050 λ · Red
0 Participants
0 Participants
Description of Color
Color perception at 1050 λ · Dark Red
0 Participants
0 Participants
Description of Color
Color perception at 1050 λ · Orange
0 Participants
0 Participants
Description of Color
Color perception at 1050 λ · Yellow
0 Participants
0 Participants
Description of Color
Color perception at 1050 λ · Light brown
0 Participants
0 Participants
Description of Color
Color perception at 1050 λ · Light blue
2 Participants
0 Participants
Description of Color
Color perception at 1050 λ · Blue
0 Participants
0 Participants
Description of Color
Color perception at 1050 λ · Light Purple
0 Participants
0 Participants
Description of Color
Color perception at 1050 λ · White
3 Participants
0 Participants
Description of Color
Color perception at 1050 λ · Grey
0 Participants
1 Participants
Description of Color
Color perception at 1050 λ · Teal Green
2 Participants
0 Participants
Description of Color
Color perception at 1050 λ · Green
0 Participants
0 Participants
Description of Color
Color perception at 1050 λ · Light Green
0 Participants
0 Participants
Description of Color
Color perception at 1050 λ · Black (no color)
8 Participants
5 Participants
Description of Color
Color perception at 1050 λ · Pink
0 Participants
0 Participants
Description of Color
Color perception at 1100 λ · Red
0 Participants
0 Participants
Description of Color
Color perception at 1100 λ · Dark Red
0 Participants
0 Participants
Description of Color
Color perception at 1100 λ · Orange
2 Participants
1 Participants
Description of Color
Color perception at 1100 λ · Yellow
5 Participants
1 Participants
Description of Color
Color perception at 1100 λ · Light brown
0 Participants
0 Participants
Description of Color
Color perception at 1100 λ · Light blue
0 Participants
0 Participants
Description of Color
Color perception at 1100 λ · Blue
0 Participants
0 Participants
Description of Color
Color perception at 1100 λ · Light Purple
1 Participants
0 Participants
Description of Color
Color perception at 1100 λ · White
3 Participants
0 Participants
Description of Color
Color perception at 1100 λ · Grey
2 Participants
1 Participants
Description of Color
Color perception at 1100 λ · Teal Green
0 Participants
0 Participants
Description of Color
Color perception at 1100 λ · Green
0 Participants
1 Participants
Description of Color
Color perception at 1100 λ · Light Green
0 Participants
1 Participants
Description of Color
Color perception at 1100 λ · Black (no color)
1 Participants
0 Participants
Description of Color
Color perception at 1100 λ · Pink
1 Participants
1 Participants
Description of Color
Color perception at 1150 λ · Red
1 Participants
0 Participants
Description of Color
Color perception at 1150 λ · Dark Red
0 Participants
0 Participants
Description of Color
Color perception at 1150 λ · Orange
0 Participants
1 Participants
Description of Color
Color perception at 1150 λ · Yellow
0 Participants
0 Participants
Description of Color
Color perception at 1150 λ · Light brown
1 Participants
0 Participants
Description of Color
Color perception at 1150 λ · Light blue
1 Participants
0 Participants
Description of Color
Color perception at 1150 λ · Blue
1 Participants
0 Participants
Description of Color
Color perception at 1150 λ · Light Purple
0 Participants
1 Participants
Description of Color
Color perception at 1150 λ · White
6 Participants
2 Participants
Description of Color
Color perception at 1150 λ · Grey
2 Participants
1 Participants
Description of Color
Color perception at 1150 λ · Teal Green
1 Participants
0 Participants
Description of Color
Color perception at 1150 λ · Green
0 Participants
0 Participants
Description of Color
Color perception at 1150 λ · Light Green
0 Participants
1 Participants
Description of Color
Color perception at 1150 λ · Black (no color)
2 Participants
0 Participants
Description of Color
Color perception at 1150 λ · Pink
0 Participants
0 Participants
Description of Color
Color perception at 1200 λ · Red
1 Participants
1 Participants
Description of Color
Color perception at 1200 λ · Dark Red
4 Participants
0 Participants
Description of Color
Color perception at 1200 λ · Orange
5 Participants
1 Participants
Description of Color
Color perception at 1200 λ · Yellow
1 Participants
1 Participants
Description of Color
Color perception at 1200 λ · Light brown
1 Participants
0 Participants
Description of Color
Color perception at 1200 λ · Light blue
0 Participants
0 Participants
Description of Color
Color perception at 1200 λ · Blue
1 Participants
0 Participants
Description of Color
Color perception at 1200 λ · Light Purple
0 Participants
0 Participants
Description of Color
Color perception at 1200 λ · White
1 Participants
0 Participants
Description of Color
Color perception at 1200 λ · Grey
0 Participants
1 Participants
Description of Color
Color perception at 1200 λ · Teal Green
0 Participants
1 Participants
Description of Color
Color perception at 1200 λ · Green
0 Participants
0 Participants
Description of Color
Color perception at 1200 λ · Light Green
0 Participants
1 Participants
Description of Color
Color perception at 1200 λ · Black (no color)
1 Participants
0 Participants
Description of Color
Color perception at 1200 λ · Pink
0 Participants
0 Participants
Description of Color
Color perception at 1250 λ · Red
1 Participants
0 Participants
Description of Color
Color perception at 1250 λ · Dark Red
4 Participants
0 Participants
Description of Color
Color perception at 1250 λ · Orange
6 Participants
1 Participants
Description of Color
Color perception at 1250 λ · Yellow
1 Participants
1 Participants
Description of Color
Color perception at 1250 λ · Light brown
1 Participants
0 Participants
Description of Color
Color perception at 1250 λ · Light blue
0 Participants
0 Participants
Description of Color
Color perception at 1250 λ · Blue
0 Participants
1 Participants
Description of Color
Color perception at 1250 λ · Light Purple
1 Participants
0 Participants
Description of Color
Color perception at 1250 λ · White
0 Participants
0 Participants
Description of Color
Color perception at 1250 λ · Grey
0 Participants
1 Participants
Description of Color
Color perception at 1250 λ · Teal Green
0 Participants
0 Participants
Description of Color
Color perception at 1250 λ · Green
0 Participants
1 Participants
Description of Color
Color perception at 1250 λ · Light Green
0 Participants
1 Participants
Description of Color
Color perception at 1250 λ · Black (no color)
1 Participants
0 Participants
Description of Color
Color perception at 1250 λ · Pink
0 Participants
0 Participants
Description of Color
Color perception at 1300 λ · Red
11 Participants
1 Participants
Description of Color
Color perception at 1300 λ · Dark Red
1 Participants
0 Participants
Description of Color
Color perception at 1300 λ · Orange
1 Participants
2 Participants
Description of Color
Color perception at 1300 λ · Yellow
0 Participants
2 Participants
Description of Color
Color perception at 1300 λ · Light brown
0 Participants
0 Participants
Description of Color
Color perception at 1300 λ · Light blue
0 Participants
0 Participants
Description of Color
Color perception at 1300 λ · Blue
0 Participants
0 Participants
Description of Color
Color perception at 1300 λ · Light Purple
0 Participants
0 Participants
Description of Color
Color perception at 1300 λ · White
0 Participants
0 Participants
Description of Color
Color perception at 1300 λ · Grey
0 Participants
0 Participants
Description of Color
Color perception at 1300 λ · Teal Green
0 Participants
0 Participants
Description of Color
Color perception at 1300 λ · Green
0 Participants
1 Participants
Description of Color
Color perception at 1300 λ · Light Green
0 Participants
0 Participants
Description of Color
Color perception at 1300 λ · Black (no color)
1 Participants
0 Participants
Description of Color
Color perception at 1300 λ · Pink
1 Participants
0 Participants
Description of Color
Color perception at 1350 λ · Red
10 Participants
2 Participants
Description of Color
Color perception at 1350 λ · Dark Red
3 Participants
0 Participants
Description of Color
Color perception at 1350 λ · Orange
0 Participants
1 Participants
Description of Color
Color perception at 1350 λ · Yellow
0 Participants
1 Participants
Description of Color
Color perception at 1350 λ · Light brown
0 Participants
0 Participants
Description of Color
Color perception at 1350 λ · Light blue
0 Participants
0 Participants
Description of Color
Color perception at 1350 λ · Blue
0 Participants
0 Participants
Description of Color
Color perception at 1350 λ · Light Purple
0 Participants
0 Participants
Description of Color
Color perception at 1350 λ · White
0 Participants
0 Participants
Description of Color
Color perception at 1350 λ · Grey
0 Participants
0 Participants
Description of Color
Color perception at 1350 λ · Teal Green
0 Participants
0 Participants
Description of Color
Color perception at 1350 λ · Green
0 Participants
2 Participants
Description of Color
Color perception at 1350 λ · Light Green
0 Participants
0 Participants
Description of Color
Color perception at 1350 λ · Black (no color)
1 Participants
0 Participants
Description of Color
Color perception at 1350 λ · Pink
1 Participants
0 Participants
Description of Color
Color perception at 1400 λ · Red
6 Participants
1 Participants
Description of Color
Color perception at 1400 λ · Dark Red
0 Participants
1 Participants
Description of Color
Color perception at 1400 λ · Orange
6 Participants
1 Participants
Description of Color
Color perception at 1400 λ · Yellow
1 Participants
0 Participants
Description of Color
Color perception at 1400 λ · Light brown
0 Participants
0 Participants
Description of Color
Color perception at 1400 λ · Light blue
0 Participants
0 Participants
Description of Color
Color perception at 1400 λ · Blue
0 Participants
0 Participants
Description of Color
Color perception at 1400 λ · Light Purple
0 Participants
0 Participants
Description of Color
Color perception at 1400 λ · Grey
0 Participants
1 Participants
Description of Color
Color perception at 1400 λ · Teal Green
0 Participants
0 Participants
Description of Color
Color perception at 1400 λ · Green
0 Participants
2 Participants
Description of Color
Color perception at 1400 λ · Light Green
0 Participants
0 Participants
Description of Color
Color perception at 1400 λ · Black (no color)
1 Participants
0 Participants
Description of Color
Color perception at 1400 λ · Pink
1 Participants
0 Participants

Adverse Events

Visual Response to IR

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

L. Olivia Hopkins

University of New Mexico

Phone: (505) 925-7769

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place