Clinical trials: Light Sensitivity
Low Vision
Performance of Rigid Gas Permeable (RGP) Scleral Contact Lenses With a Passive Artificial Iris
Data from 15 healthy subjects will be recorded in two testing sessions spread on two days, using three lens designs (A, B and C).
- Trial name
- RGPIRIS_PA (NCT04040790)
- Testing
- Scleral contact lens without a passive artificial iris, Scleral contact lens with a passive artificial iris with low contrast (<1:5), Scleral contact lens with a passive artificial iris with high contrast (>1:5)
- Where
- Belgium
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- University Ghent
Mild Dysplasia of Esophagus, Moderate Dysplasia of Esophagus
Performance of White Light, NBI and Iodine Staining Endoscopy in the Diagnosis of Esophageal Lesions
The investigators aim to evaluate the performance of Narrow Band Imaging (NBI) endoscopy in Esophageal Squamous Cell Carcinoma (ESCC) screening, as compared to the currently used White Light Endoscopy (WLE) and Lugol's Iodine…
- Conditions
- Mild Dysplasia of Esophagus, Moderate Dysplasia of Esophagus, Severe Dysplasia of Esophagus, Carcinoma in Situ of Esophagus
- Trial name
- NCT04170257
- Testing
- Endoscopic examination using white light, NBI and iodine staining
- Where
- 5 sites in China
- Volunteers
- 10,000 people, healthy volunteers welcome
- Sponsor
- Peking University Cancer Hospital & Institute
Cataract, Presbyopia Correction
The Purpose is to Evaluate Visual Acuity for Distance, Intermediate and Near and Additionally Contrast Sensitivity at 25% and 10% of Illumination After Implantation of Trifocal IOL, Extended Range of Vision IOL, Bifocal IOL With Low Addition and Monofocal IOL
The objective of this study was to evaluate the effect of intraocular lens (IOL) selection on visual acuity and refractive outcomes, to assess the impact of IOL type on postoperative contrast sensitivity, and to investigate…
- Conditions
- Cataract, Presbyopia Correction, Visual Acuity
- Trial name
- IOL (NCT07008768)
- Testing
- Cataract surgery and refractive lens exchange surgery, TRIFOCAL IOL, EROV IOL
- Where
- Croatia
- Volunteers
- 131 people, healthy volunteers welcome
- Sponsor
- University Eye Hospital Svjetlost
Polymorphic Light Eruption, Psoriasis
Regulatory T Cells (Tregs) in Polymorphic Light Eruption
Polymorphic light eruption (PLE) is a photodermatosis with an extremely high prevalence, particularly among young women (up to 20%).
- Conditions
- Polymorphic Light Eruption, Psoriasis, Atopic Eczema
- Trial name
- NCT00555178
- Where
- 2 sites in Austria
- Volunteers
- 92 people, healthy volunteers welcome
- Sponsor
- Medical University of Graz
Polymorphic Light Eruption
Protective Effect Assessment of Foto Ultra Isdin Solar Allergy Fusion Fluid on the UVA Induced PLE
The primary objective of this Clinical Investigation was to assess the protective efficacy of a medical device (FOTO ULTRA ISDIN® SOLAR ALLERGY FUSION FLUID) against the polymorphic light eruption induced by the UVA.
- Trial name
- NCT05320315
- Testing
- Foto Ultra ISDIN® Solar Allergy Fusion Fluid
- Where
- France
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- Centre de Pharmacologie Clinique Applique a la Dermatologie
Age-related Macular Degeneration, Aging
Functionally Validated Structural Endpoints for Early AMD
Delayed rod-mediated dark adaptation (RMDA), or delayed recovery of vision in a dark environment, is a functional biomarker (i.e., risk factor) for early age-related macular degeneration (AMD).
- Trial name
- ALSTAR2 (NCT04112667)
- Testing
- Normal Macular Health, Early Macular Degeneration, Young Normals
- Where
- United States
- Volunteers
- 556 people, healthy volunteers welcome
- Sponsor
- Cynthia Owsley
Photophobia, Traumatic Brain Injury
Objectively Diagnose and Monitor Treatment of Light Sensitivity
The purpose of this project is to provide a new framework for diagnosing and monitoring treatment of light sensitivity and headache by objective measurement of facial features, pupil responses, retinal electrical responses and…
- Conditions
- Photophobia, Traumatic Brain Injury, Migraine
- Trial name
- NCT03694626
- Testing
- Pupillography, Ocular Coherence Tomography (OCT), Wrist-watch sensor device
- Where
- United States
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Randy Kardon
Locally Advanced Cutaneous Squamous Cell Carcinoma of the Head and Neck, Melanoma Neoplasms
Evaluation of Skin Tests in Biotherapy Allergies
Biotherapies are biological (extracted from an organism or living tissue) or biotechnological drugs used in the treatment of multiple conditions, such as autoimmune inflammatory diseases, cancers, and hematologic diseases.
- Conditions
- Locally Advanced Cutaneous Squamous Cell Carcinoma of the Head and Neck, Melanoma Neoplasms, Small Cell Bronchial Carcinomas, Bronchial Carcinoma
- Trial name
- ETCABIO (NCT06971848)
- Testing
- Drug skin tests (investigating hypersensitivity to a biotherapy)
- Where
- France
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- University Hospital, Angers
Photophobia
Comparison Between Spectacles and Contact Lenses
Many people suffer from migraine headaches, some more so than others and a common trigger/complaint is light sensitivity, or photophobia1.
- Trial name
- NCT06905912
- Testing
- Biomedics55 Premier contact lenses, and Altius Tinted Contact Lenses
- Where
- United States
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- University of Oklahoma
Migraine, Headache
Migraine Headache Mitigation Utilizing Avulux
This will be a randomized double blind cross over interventional trial to determine if Avulux lenses are able to reduce headache symptoms in patients
- Conditions
- Migraine, Headache, Photophobia
- Trial name
- NCT06149000
- Testing
- Avulux Lenses
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Kaiser Permanente
Chronobiology Disorders, Circadian Rhythm Disorders
Light Sensitization Study
Circadian rhythm disorders are a class of sleep disorders characterized by misalignment between the timing of sleep and the timing of rhythms driven by the biological clock.
- Conditions
- Chronobiology Disorders, Circadian Rhythm Disorders, Sleep Disorders, Circadian Rhythm
- Trial name
- NCT01327040
- Testing
- light exposure
- Where
- United States
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- Brigham and Women's Hospital
Visual Snow Syndrome, Migraine
Investigating Brain Function in People With and Without Visual Snow Syndrome Using Adaptation to Visual Stimuli
The goal of this study is to learn more about the brain pathways and activity involved in creating Visual Snow Syndrome (VSS). The main questions it aims to answer are: Does VSS arise from spontaneous activity in brain pathways?…
- Conditions
- Visual Snow Syndrome, Migraine, Healthy
- Trial name
- VPVSS (NCT06961864)
- Testing
- Visual Adaptation, Assessments and Questionnaires, Functional Magnetic Resonance Imaging (fMRI)
- Where
- United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- University of Minnesota
Bipolar Disorder, Light Sensitivity
Light at Night Study
The purpose of this mechanistic study is to examine light sensitivity (melatonin suppression) in people with bipolar depression I, and compare it to healthy controls. This is not a treatment study.
- Trial name
- LAN (NCT04251234)
- Testing
- Light intensity, ~30 lux, Baseline light intensity, <1 lux
- Where
- United States
- Volunteers
- 2 people, healthy volunteers welcome
- Sponsor
- University of Michigan
Acne Vulgaris
A Study to Evaluate the Potential of Tazarotene Foam to Cause an Allergic Reaction When Applied to the Skin and Exposed to Light on Healthy Volunteers.
The purpose of this study is to evaluate the potential of Tazarotene Foam to induce a photoallergic reaction when exposed to UV and VIS light on skin of healthy volunteers.
- Trial name
- NCT01119651
- Testing
- Tazarotene (Patch application in Challenge Phase)
- Where
- United States
- Volunteers
- 59 people, healthy volunteers welcome
- Sponsor
- Stiefel, a GSK Company
Myopia
Effects of Blue of Glasses VS Standard Lenses on Contrast Sensitivity & Visual Fatigue in Myopic & Non-Myopic Adults
This study investigates the effects of blue light-blocking glasses compared to standard lenses on contrast sensitivity and visual fatigue in myopic and non-myopic adults.
- Trial name
- NCT06739525
- Testing
- Blue Light-Blocking Glasses (Intervention Group), Standard Lenses (Control Group)
- Where
- Pakistan
- Volunteers
- 64 people, healthy volunteers welcome
- Sponsor
- Superior University
Neonatal Jaundice, Atopic Dermatitis
Skin Care Strategies for Neonatal Jaundice Phototherapy to Prevent Atopic Dermatitis in Moderate and Severe Infants
Atopic Dermatitis (AD) is a common chronic, recurrent, and inflammatory skin disease in children. The incidence of moderate to severe AD in infants aged 1-12 months in our country is as high as 25.41%, which is related to…
- Trial name
- NCT05178433
- Testing
- Use baby moisturizers by NeoChine
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Shanghai First Maternity and Infant Hospital
Bipolar Depression
Neural and Visual Responses to Light in Bipolar Disorder: A Novel Putative Biomarker
Objective. Bipolar Disorders (BD) are a major public health problem. The investigators still lack knowledge of the mechanisms which contribute to BD.
- Trial name
- LightEyeBD (NCT02048995)
- Where
- United States
- Volunteers
- 91 people, healthy volunteers welcome
- Sponsor
- Northwestern University
Myopia
Side Effects of Atropine (SEA) Study
This study will perform several objective and subjective measurements of the eye and vision before and after a week of using 0.01% concentration atropine drops.
- Trial name
- SEA (NCT03593044)
- Testing
- 0.01% concentration atropine drops
- Where
- United States
- Volunteers
- 31 people, healthy volunteers welcome
- Sponsor
- Jeffrey J. Walline, OD PhD
Migraine, Photophobia
Impact of Optimized White Light on Visual Discomfort, Headache Intensity, and Cognitive Performance Among Those With Migraine
The goal of this research is to study how effective an optimized white light is for improving visual comfort and reducing migraine symptoms.
- Conditions
- Migraine, Photophobia, Cognitive Function Assessment, Headache
- Trial name
- NCT07898722
- Testing
- Optimized Ambient White Light, Conventional White Light
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Arizona State University
Monochromatic, L- and S-cone Modulation Only
Evaluating How Well Different Types of Light-sensitive Cells in the Eye Contribute to Its Focusing Ability
In this experiment, subjects will view shapes on a screen with varying colors and be asked to focus their eyes on the shapes. The shapes will look as though they are jumping to random distances away from the eye.
- Conditions
- Monochromatic, L- and S-cone Modulation Only, L- and M-cone Modulation Only, M and S-cone Modulation Only
- Trial name
- NCT07691463
- Testing
- Color
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Rochester Institute of Technology