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ClinicalTrials.gov public records Last synced Oct 21, 2026, 10:38 PM EDT

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Showing 1–24 of 53 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Color vision Clear all
Completed Not applicable Interventional Results available

Vidatalk Communication Application: Usability, Acceptability and Efficacy Study

NCT02921776
View directory record Official record
Conditions
Nonverbal Communication, Critical Illness
Interventions
Aim 1 - VidaTalk - post-extubation, Aim 2 - VidaTalk - intubated, Aim 3 - VidaTalk tablet app, Aim 3 - attention-control with non-VidaTalk tablet
Other · Device
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 99 Years
Enrollment
147 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 31, 2022 · Synced Oct 21, 2026, 10:38 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

VR to Reduce Pain/Anxiety During Painful Procedures

NCT04268901
View directory record Official record
Conditions
Phlebotomy, Orthopedics, Radiology, Pain, Anxiety, Virtual Reality, Allergy, Gastroenterology
Interventions
Samsung Gear VR, Merge VR, Oculus Go
Device
Lead sponsor
Children's Hospital Los Angeles
Other
Eligibility
7 Years to 21 Years
Enrollment
700 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2025
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Oct 27, 2023 · Synced Oct 21, 2026, 10:38 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Evaluating How Well Different Types of Light-sensitive Cells in the Eye Contribute to Its Focusing Ability

NCT07691463
View directory record Official record
Conditions
Monochromatic, L- and S-cone Modulation Only, L- and M-cone Modulation Only, M and S-cone Modulation Only
Interventions
Color
Other
Lead sponsor
Rochester Institute of Technology
Other
Eligibility
Up to 35 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Jul 17, 2026 · Synced Oct 21, 2026, 10:38 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Contributions of mTBI to Neurodegeneration Due to Chronic Traumatic Encephalopathy (CTE) and Alzheimer's Disease (AD)

NCT04124029
View directory record Official record
Conditions
Mild Traumatic Brain Injury, Moderate Traumatic Brain Injury, Mild Cognitive Impairment
Interventions
No Intervention is used for this study but all subjects will be asked to complete electroencephalogram (EEG) testing and an MRI scan., No intervention is used for this study but all subjects will be asked to complete a venous blood draw procedure and a lumbar puncture procedure.
Device · Procedure
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
30 Years to 90 Years
Enrollment
800 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 1, 2026 · Synced Oct 21, 2026, 10:38 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Functionally Validated Structural Endpoints for Early AMD

NCT04112667
View directory record Official record
Conditions
Age-related Macular Degeneration, Aging
Interventions
Normal Macular Health, Early Macular Degeneration, Young Normals
Other
Lead sponsor
Cynthia Owsley
Other
Eligibility
20 Years and older
Enrollment
556 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2024
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Sep 26, 2025 · Synced Oct 21, 2026, 10:38 PM EDT
Suspended No phase listed Observational Accepts healthy volunteers

Autostereoscopic Dynamic Near Vision Testing

NCT04606355
View directory record Official record
Conditions
Visual Suppression, Amblyopia, Color Vision Defects
Interventions
Visual Acuity, stereopsis, Color vision
Diagnostic Test
Lead sponsor
Alaska Blind Child Discovery
Other
Eligibility
1 Year to 95 Years
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2024
U.S. locations
1
States / cities
Anchorage, Alaska
Source: ClinicalTrials.gov public record
Updated Jul 31, 2024 · Synced Oct 21, 2026, 10:38 PM EDT
Active, not recruiting Not applicable Interventional

Prospective Natural History Study of Retinitis Pigmentosa

NCT04285398
View directory record Official record
Conditions
Retinitis Pigmentosa
Interventions
Ophthalmic examinations, Mobility Test
Other
Lead sponsor
SparingVision
Industry
Eligibility
18 Years and older
Enrollment
82 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 22, 2025 · Synced Oct 21, 2026, 10:38 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Development Of Neuroimaging Methods To Assess The Neurobiology Of Addiction

NCT02535702
View directory record Official record
Conditions
Normal Physiology
Interventions
In vivo MRS, fMRI, EEG/EOG, Stimulation tasks, NSPRD, Structural MRI
Other
Lead sponsor
National Institute on Alcohol Abuse and Alcoholism (NIAAA)
NIH
Eligibility
18 Years and older
Enrollment
192 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2026
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 13, 2026 · Synced Oct 21, 2026, 10:38 PM EDT
Suspended Early Phase 1 Interventional

PBA Use for Treatment of ATF6-/- Patients

NCT04041232
View directory record Official record
Conditions
ACHROMATOPSIA 7, Achromatopsia
Interventions
PBA
Drug
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 11, 2026 · Synced Oct 21, 2026, 10:38 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

DB RCT for Specialized Phototherapy in Parkinson's Disease.

NCT04453033
View directory record Official record
Conditions
Parkinson Disease
Interventions
Celeste Specialized Phototherapy Device
Device
Lead sponsor
PhotoPharmics, Inc.
Industry
Eligibility
45 Years and older
Enrollment
350 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Sep 17, 2026 · Synced Oct 21, 2026, 10:38 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Impact of Color Correcting Lenses on Color Vision Deficiency

NCT05463016
View directory record Official record
Conditions
Color Blindness, Color Vision Defects, Color Blindness, Green, Color Blindness, Red
Interventions
Experimental Group 1: Color Correcting Lenses, Placebo Group 1: Placebo Lenses, Placebo Group 1 Crosses over to become Experimental Group 2: Color Correcting Lenses, Experimental Group 1 Crosses over to become Placebo Group 2: Placebo Lenses, Color Correcting Lenses in Subjects with Normal Color Vision
Device
Lead sponsor
University of the Incarnate Word
Other
Eligibility
18 Years and older
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Apr 3, 2024 · Synced Oct 21, 2026, 10:38 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

VR to Reduce Pain/Anxiety During IV Starts

NCT04942561
View directory record Official record
Conditions
Radiology
Interventions
Samsung Gear VR, Merge VR
Device
Lead sponsor
Children's Hospital Los Angeles
Other
Eligibility
10 Years to 21 Years
Enrollment
107 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 1, 2021 · Synced Oct 21, 2026, 10:38 PM EDT
Completed Not applicable Interventional

Intervention Trial in Early Age-related Macular Degeneration

NCT01694680
View directory record Official record
Conditions
Age-related Macular Degeneration (AMD)
Interventions
Lutein-enriched-egg beverage (NWT-02), Placebo
Dietary Supplement
Lead sponsor
Newtricious R&D BV
Industry
Eligibility
50 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 21, 2016 · Synced Oct 21, 2026, 10:38 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

COVID-19 Health Messaging to Underserved Communities

NCT04371419
View directory record Official record
Conditions
Coronavirus
Interventions
Messaging
Behavioral
Lead sponsor
National Bureau of Economic Research, Inc.
Other
Eligibility
18 Years and older
Enrollment
14,267 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 27, 2021 · Synced Oct 21, 2026, 10:38 PM EDT
Completed No phase listed Observational

Hyperopia Detection GCK With Glow Fixation

NCT04297969
View directory record Official record
Conditions
Amblyopia Bilateral, Hyperopia of Both Eyes, Astigmatism Bilateral, Accommodation Disorder
Interventions
objective pediatric vision screen "GCK glow fixation"
Diagnostic Test
Lead sponsor
Alaska Blind Child Discovery
Other
Eligibility
1 Month to 20 Years
Enrollment
133 participants
Timeline
2019 – 2020
U.S. locations
1
States / cities
Anchorage, Alaska
Source: ClinicalTrials.gov public record
Updated Oct 19, 2020 · Synced Oct 21, 2026, 10:38 PM EDT
Not listed Phase 3 Interventional Accepts healthy volunteers

The Study of Folate Receptor-Mediated Staining Solution (FRD™) In Cervical Lesion Detection

NCT03366493
View directory record Official record
Conditions
Cervical Intraepithelial Neoplasia Grade 2/3
Interventions
FRD, Cytology, HPV testing, Colposcopy, ECC, Biospy
Combination Product · Other · Procedure
Lead sponsor
GY Highland Biotech LLC
Industry
Eligibility
20 Years to 60 Years · Female only
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Augusta, Georgia
Source: ClinicalTrials.gov public record
Updated Dec 8, 2017 · Synced Oct 21, 2026, 10:38 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Evaluating Color Perception Under LED Red/Green and Green Dominant Light

NCT01927536
View directory record Official record
Conditions
Color Blindness, Acquired
Interventions
White LED Flashlight, Red/Green Green Dominant LED Flashlight
Device
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 66 Years
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2019
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated May 15, 2019 · Synced Oct 21, 2026, 10:38 PM EDT
Recruiting Not applicable Interventional

Optimizing Low Vision Rehabilitation in Emotionally Distressed Patients With Inherited Retinal Diseases

NCT06651736
View directory record Official record
Conditions
Inherited Retinal Diseases
Interventions
Low Vision Rehabilitation (LVR), Emotion Regulation Therapy (ERT)
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 23, 2026 · Synced Oct 21, 2026, 10:38 PM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Beauty from Within Community Screening Project

NCT02588690
View directory record Official record
Conditions
Heart Health Screening and Prevention
Interventions
Fingerstick cholesterol test, Atherosclerosis Cardiovascular Disease Risk assessment, Blood pressure measurement
Procedure · Other
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
21 Years and older · Female only
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2030
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Sep 19, 2024 · Synced Oct 21, 2026, 10:38 PM EDT
Terminated Early Phase 1 Interventional Accepts healthy volunteers

A Cognitive- Behavioral Play Intervention for Siblings of Children Diagnosed With Cancer

NCT01704885
View directory record Official record
Conditions
Any Cancer Diagnosis
Interventions
Play Intervention, Questionnaires
Behavioral · Other
Lead sponsor
Case Comprehensive Cancer Center
Other
Eligibility
4 Years to 10 Years
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2015
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 3, 2015 · Synced Oct 21, 2026, 10:38 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effect of Clemastine Fumarate on Color Vision in Healthy Controls

NCT02613091
View directory record Official record
Conditions
Healthy Subjects
Interventions
Clemastine fumarate
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 60 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2016
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Nov 3, 2016 · Synced Oct 21, 2026, 10:38 PM EDT
Terminated Not applicable Interventional Results available

Feasibility of EnChroma Use in the Emergency Department Setting

NCT04021914
View directory record Official record
Conditions
Color Vision Defects
Interventions
EnChroma glasses
Device
Lead sponsor
Emory University
Other
Eligibility
18 Years to 65 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Sep 18, 2023 · Synced Oct 21, 2026, 10:38 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Evaluation of the Repeatability and Reproducibility of OCTA Image Quality With the Heidelberg Engineering SPECTRALIS With OCT Angiography Module

NCT03530449
View directory record Official record
Conditions
Retinal Vascular, Normal Eyes
Interventions
OCT Angiography, Color Fundus Photography, Optical Coherence Tomography
Device
Lead sponsor
Heidelberg Engineering GmbH
Industry
Eligibility
22 Years and older
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 28, 2019 · Synced Oct 21, 2026, 10:38 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Safety Study Looking at the Effects of Stendra on Vision

NCT02033200
View directory record Official record
Conditions
Vision
Interventions
Stendra 200 mg, Placebo
Drug
Lead sponsor
VIVUS LLC
Industry
Eligibility
18 Years to 45 Years · Male only
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Mar 13, 2015 · Synced Oct 21, 2026, 10:38 PM EDT