Clinical trials: Visual Deficiency
Anemia, Iron Deficiency, Cardiometabolic Disease
The Impact of Faba Bean Rich Bread on Iron Status, Postprandial Lipaemia and Satiety
High levels of animal proteins (meat) in the diet are linked with a greater risk of developing heart disease and other long-term health conditions.
- Conditions
- Anemia, Iron Deficiency, Cardiometabolic Disease, Low Iron Stores
- Trial name
- RtP (NCT06466746)
- Testing
- Raising the Pulse faba bean-enriched bread, Conventional White Bread
- Where
- United Kingdom
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- University of Reading
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
HIV Infections, Acquired Immunodeficiency Syndrome
Anatomic and Visual Function Assessments on Asymptomatic HIV-positive Patients
The purpose of this study is to assess retinal nerve fiber layer thickness and macular thickness measured with optical coherence tomography (OCT) on patients infected by HIV virus without ocular manifestations and to correlate…
- Trial name
- NCT00871078
- Testing
- Optical Coherence Tomography (OCT), Frequency Doubling Technology (FDT) perimeter
- Where
- Brazil
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Federal University of São Paulo
Iodine Deficiency Goiter, Infant Development
Community Salt Testing and Relation of Iodine Intake to Visual Information Processing of Ethiopian Infants
This study evaluated efficacy of iodized salt for mothers and their six-month-old infants' thyroid hormones and visual information processing.
- Trial name
- NCT03889431
- Testing
- Iodine capsule, Iodized Salt
- Where
- Ethiopia
- Volunteers
- 106 people, healthy volunteers welcome
- Sponsor
- Oklahoma State University
Cognitive Change, Nutrient Deficiency
Nutrition, Vision, and Cognition in Sport Study: Beef
The purpose of this study is to determine whether a 30 day beef intervention can improve peak cognitive performance in young, normally menstruating adult women.
- Conditions
- Cognitive Change, Nutrient Deficiency, Nutritional Anemia, Visual Spatial Processing
- Trial name
- IONSport:Beef (NCT04427852)
- Testing
- 30 day Daily consumption of 1 serving of beef, 30 day Daily consumption of 1 serving of the vegatable protein source
- Where
- United States
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Texas A&M University
Decision Aid
Using Visual Arrays to Support Understanding of Genetic Risk
The goal of this study is to understand how people understand risk from genetic testing. The investigators want to understand what visual aid best helps people accurately assess risk.
- Trial name
- NCT06994832
- Testing
- Visual Array, Narrative Visual Array, Choice
- Where
- United States
- Volunteers
- 1,045 people, healthy volunteers welcome
- Sponsor
- Stephanie B. Seminara, MD
Visual Deficiency, Congenital Blindness
VISIODOL: Validation of the VISIODOL® Scale
The aim of this study is to validate the VISIODOL® scale for screening of pain in people with visual impairment.
- Conditions
- Visual Deficiency, Congenital Blindness, Acquired Blindness
- Trial name
- VISIODOL (NCT03968991)
- Testing
- VISIODOL® (Diagnostic tool)
- Where
- France
- Volunteers
- 37 people, healthy volunteers welcome
- Sponsor
- University Hospital, Clermont-Ferrand
HPV Infection, Cervical Cancer
HPV-Based Screen-and-Treat Demonstration Project in Lilongwe
The purpose of this study is to assess completion and performance of the following novel invasive cervical cancer (ICC) screen-and-treat algorithm among 625 HIV-positive women in Lilongwe, Malawi: 1) rapid testing of…
- Conditions
- HPV Infection, Cervical Cancer, HIV Infections
- Trial name
- NCT04092257
- Testing
- VIA and thermocoagulation
- Where
- Malawi
- Volunteers
- 1,250 people, healthy volunteers welcome
- Sponsor
- UNC Lineberger Comprehensive Cancer Center
Myopia, Moderate
To Compare the Clinical Outcomes of FemtoLASIK and ICL Implantation in Treating Moderate Myopia Focusing on Refractive Stability, Contrast Sensitivity and High Order Aberrations.
Compare the clinical outcomes of FemtoLASIK and ICL implantation in treating moderate myopia.
- Trial name
- NCT07291986
- Testing
- FemtoLASIK, ICL implantation
- Where
- Egypt
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Walid Osama Abdel Rahman Nour El Din
Visual Deficiencies
Exploration of the Role of Vision on Spatial Cognition
Atypical developpement of spatial cognition has been shown in congenital bindness with some consequences on mathematic learning (Cattaneo et al., 2010) as well as on the mental representation of spatial maps (Thinus-Blanc \&…
- Trial name
- SpatioCog (NCT06088797)
- Testing
- METRIC COMPARISON Tasks : Tactile PVSE test, METRIC COMPARISON Tasks : Classic PVSE test, Mental imagery task
- Where
- France
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Hospices Civils de Lyon
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