Clinical trials: Photophobia
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
Retinopathy of Prematurity, Pain
The Effect of Eyemasks on Neonatal Stress Following Dilated Retinal Examination
Although screening exams for retinopathy of prematurity (ROP) prevent blindness they are physiologically stressful for infants. The investigators postulate that photosensitivity during mydriasis contributes to post-examination…
- Conditions
- Retinopathy of Prematurity, Pain, Premature Infant, Retinal Disease
- Trial name
- MASK-ROP (NCT03824782)
- Testing
- Phototherapy Mask
- Where
- Canada
- Volunteers
- 51 people
- Sponsor
- Sunnybrook Health Sciences Centre
Migraine
Acute Treatment Trial in Adult Subjects With Migraines
The purpose of the study is to evaluate the safety and efficacy of three different intranasal dose levels of zavegepant (BHV-3500), relative to placebo, in the acute treatment of moderate to severe migraine.
- Trial name
- NCT03872453
- Testing
- Zavegepant, Intranasal Aptar Pharma Unit Dose System
- Where
- 82 sites in United States
- Volunteers
- 2,154 people
- Sponsor
- Pfizer
Keratitis
Tolerance to Light for Patients Suffering From Keratitis
In order to develop an innovative device to study infectious keratitis, we need to illuminate the cornea of patients suffering from an infectious keratitis with red or near-infrared light.
- Trial name
- EBLOUI (NCT03586505)
- Testing
- Light exposure
- Where
- France
- Volunteers
- 30 people
- Sponsor
- Centre Hospitalier Universitaire de Saint Etienne
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
Headache Migraine Chronic
Spectacle Tints and Thin-Films for Migraine
Nearly all migraine sufferers report sensitivity to light during a headache and a significant proportion of sufferers report light sensitivity between attacks. Light is also a common trigger for migraine headaches.
- Trial name
- NCT02720211
- Testing
- Gray tinted spectacle lenses, Thin-Film spectacle lenses
- Where
- 4 sites in United States
- Volunteers
- 10 people
- Sponsor
- University of Utah
Light Sensitivity
Eye Movement Behaviour and Pupil Size in Natural Outdoor and Indoor Scenes
In this study, the researchers will be using eye tracking and detailed lighting measurements to understand how different types of indoor and outdoor lighting affect the eye movements and pupil sizes of our participants.
- Trial name
- NCT05971238
- Testing
- Indoor vs. outdoor scenes
- Where
- Germany
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Technical University of Munich
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