Clinical trials: Visual Deficiency, open to volunteers
Vision Impairment
Providing Access to the Visual Environment
Providing Access to the Visual Environment is a pediatric low vision grant which has the ability to provide comprehensive, interdisciplinary low vision rehabilitation services to every child in Tennessee with a vision impairment.
- Trial name
- NCT00341744
- Where
- United States
- Volunteers
- 795 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University
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
Neurotrophic Keratopathy, Exposure Keratopathy
Clinical Predictors of Visual Outcome in Patients Affected With Ocular Surface Diseases
This retrospective-prospective study aims to identify the diagnostic parameters most predictive of BSCVA in patients with OSD. Clinical, structural, and biochemical data will be collected from standard-of-care examinations and…
- Conditions
- Neurotrophic Keratopathy, Exposure Keratopathy, Limbal Stem Cell Deficiency (LSCD), Cornea Abnormality
- Trial name
- OSD (NCT07694817)
- Where
- Italy
- Volunteers
- 1,000 people
- Sponsor
- IRCCS San Raffaele
Vision Loss Night, Vision Disorders
OPI-NXYDLD-303 Safety and Efficacy of Phentolamine Ophthalmic Solution in Keratorefractive Surgery Participants With Decreased Mesopic Visual Acuity
The goal of this clinical trial is to learn if Phentolamine Ophthalmic Solution works to treat adults that have had keratorefractive surgery and have decreased visual acuity under mesopic conditions.
- Trial name
- LYNX-3 (NCT07140783)
- Testing
- 0.75% Phentolamine Ophthalmic Solution
- Where
- 20 sites in United States
- Volunteers
- 580 people
- Sponsor
- Opus Genetics, Inc
Nutrition Deficiency (Xanth Deficiency) Due to A Particular Kind of Food
Role of Xanthophylls in Visual Function
Ecy of lutein supplementation alone, or zeaxanthin supplementation alone, or a combination of both, compared to placebo, on the evolution of macular pigment density (MPOD) measured by fundus photography in XANTH-deficient…
- Trial name
- Xanthovision (NCT05794074)
- Testing
- luteine and zeaxanthine, luteine, zeaxanthine
- Volunteers
- 48 people
- Sponsor
- Assistance Publique - Hôpitaux de Paris
MELAS Syndrome, Lebers Hereditory Optic Neuropathy With Extra Ocular Symptoms (LHON-Plus)
A Basket Clinical Study to Assess Glycerol Tributyrate in Patients With Mitochondrial Encephalopathy, Lactic Acidosis, Stroke-like Episodes (MELAS) or Leber's Hereditary Optic Neuropathy-Plus (LHON-Plus)
This is a parallel arm non-randomized dose-escalation, open-label basket exploratory phase 1 clinical trial where Mitochondrial encephalopathy, lactic acidosis, stroke-like episodes (MELAS) and Leber's hereditary optic…
- Trial name
- NCT06792500
- Testing
- Glycerol Tributyrate
- Where
- United States
- Volunteers
- 24 people
- Sponsor
- George Washington University
Non-visual Effects of Light, Chronic Variable Sleep Deficiency
Sleep, Light, Circadian, Central Oxidative Stress
Irregular sleep timing and sleep deficiency are pervasive in society despite evidence that sleep deficiency impairs cognition and is linked to neurodegenerative disease.
- Trial name
- NCT07471126
- Testing
- Chronic Variable Sleep Deficiency, Sleep- and Circadian-Informed Lighting, Dim Light
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Beth Israel Deaconess Medical Center