Clinical trials: Central Visual Impairment
Vision Loss Partial, Hemianopia
Effect of Visual Retraining on Visual Loss Following Visual Cortical Damage
This project is intended to collect data using standard clinical tests and psychophysics to quantify the effect of visual cortical damage on the structure of the residual visual system, visual perception, spatial awareness, and…
- Conditions
- Vision Loss Partial, Hemianopia, Hemianopia Homonymous, Quadrantanopia
- Trial name
- NCT05098236
- Testing
- Training in the Blind Field, Training in the Sighted Field
- Where
- United States
- Volunteers
- 280 people, healthy volunteers welcome
- Sponsor
- University of Rochester
Blindness, Spinal Cord Injury
Use of "Smart Wheelchairs" to Provide Independent Mobility to Visual and Mobility Impairments
The goal of this project is to evaluate the Smart Wheelchair Component System (SWCS) for power wheelchairs and the Smart Power Assistance Module (SPAM) for manual wheelchairs in realistic indoor environments with target users…
- Trial name
- NCT00333762
- Testing
- Smart Power Assistance Module (SPAM), Smart Wheelchair Component System (SWCS)
- Where
- 2 sites in United States
- Volunteers
- 4 people, healthy volunteers welcome
- Sponsor
- VA Office of Research and Development
Myopia, Quality of Life
Functional Vision and Quality of Life in a Modern Society - With Emphasis on Myopia and Cerebral Visual Impairment Among Youth
Society has become increasingly digital, and many everyday services have been replaced by digital self-service solutions. This puts greater demands on our vision and our ability to interpret what we see.
- Trial name
- NCT07653074
- Testing
- ophthalmological examination
- Where
- Sweden
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Region Örebro County
Refractive Error, Visual Impairment
The Baltimore Reading and Eye Disease Study
The Baltimore Reading and Eye Disease Study (BREDS) is a two year study to determine the prevalence of vision problems in an early school age population with reading difficulty.
- Conditions
- Refractive Error, Visual Impairment, Convergence Insufficiency, Reading Disabilities
- Trial name
- BREDS (NCT02607384)
- Testing
- Eyeglass wearing, Orthoptic exercises, Specialist referral
- Volunteers
- 328 people, healthy volunteers welcome
- Sponsor
- Johns Hopkins University
Cerebral Visual Impairment
Neurodevelopmental Outcomes in Cerebral Visual Impairment
Cerebral visual impairment (CVI) is one of the leading causes of pediatric visual impairment and negatively impacts the development of motor, language, and cognitive skills.
- Trial name
- CVI-ND (NCT07212010)
- Where
- United States
- Volunteers
- 600 people, healthy volunteers welcome
- Sponsor
- Children's Hospital Medical Center, Cincinnati
Vision Disorders, Vision, Low
Viewing Strategy Training in Children With (Cerebral) Visual Impairment
Viewing strategies are strategies used to process visual Information. Many children with visual impairment seem to lack systematic viewing strategies.
- Trial name
- NCT05600140
- Testing
- Viewing strategy training
- Where
- Netherlands
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Royal Dutch Visio
Vision, Low
eSight Eyewear Quality of Life and Efficacy Study
The "eSight Quality of Life and Efficacy Study" (eQUEST) is a prospective cohort study intended to demonstrate the functional vision and Quality of Life (QoL) improvement provided by eSight Eyewear to persons with significant…
- Trial name
- eQUEST (NCT02616900)
- Testing
- eSight Eyewear
- Where
- 6 sites in United States, Canada
- Volunteers
- 74 people, healthy volunteers welcome
- Sponsor
- eSight Corporation
Vision Loss Partial, Vision; Loss, Both Eyes
Effect of Visual Retraining After Stroke
This project is intended to collect data using standard clinical tests and psychophysics to quantify the effect of visual cortical damage on the structure of the residual visual system, visual perception, spatial awareness, and…
- Conditions
- Vision Loss Partial, Vision; Loss, Both Eyes, Hemianopia Homonymous, Hemianopia
- Trial name
- urochester (NCT06121219)
- Testing
- Training in the Blind Field
- Where
- United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- University of Rochester
Pituitary Adenoma, Visual Impairment
Clinical Study of Structural and Functional Evaluation of the Visual Pathway
Sellar area tumors such as pituitary adenoma, craniopharyngioma and meningioma, etc, commonly lead to visual impairment symptoms.
- Conditions
- Pituitary Adenoma, Visual Impairment, Sellar Tumor, Neuroimaging
- Trial name
- NCT03591315
- Testing
- resting state fMRI, visual tasking state fMRI, diffusion tensor imaging
- Where
- China
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Xiangya Hospital of Central South University
Cortical/Cerebral Visual Impairment, Cerebral Palsy
Examining the Effect of Eye Gaze Technology on Children With Cortical Visual Impairment
The goal of this study is to learn about eye gaze technology's use as an assessment and intervention of visual skills and the impact on occupational performance in children with cortical/cerebral visual impairment.
- Trial name
- NCT06067607
- Testing
- eye gaze technology
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Rockhurst University
Central Visual Impairment
Peripheral Reading
The purpose of this study is to evaluate reading performance in the visual periphery by simulating central vision loss using a computer-controlled gaze-contingent display with an eye tracker.
- Trial name
- NCT03640130
- Testing
- Gaze-contingent text enhancement
- Where
- United States
- Volunteers
- 6 people, healthy volunteers welcome
- Sponsor
- University of Houston
Cognitive Impairment, Dementia
Determinants of Cognitive Impairment Among Geriatrics
This study aims to explore the determinants of cognitive impairment among Indonesian geriatrics in an Old Age Home.
- Conditions
- Cognitive Impairment, Dementia, Hearing Impairment, Vision Impairment and Blindness
- Trial name
- NCT03669536
- Where
- Indonesia
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Tarumanagara University
Stroke, Visual Defects
Differentiation of Human Body Balance Disorders
Our research aims to analyze the possibilities of functional assessment of imbalances in the human body. Using the available, commonly known and used tests and devices for objective examination of static and dynamic body balance…
- Conditions
- Stroke, Visual Defects, Labyrinth Diseases, Cervical Spine Degenerative Disease
- Trial name
- NCT07395180
- Testing
- Patients after stroke, Patients with posterior columns of the spinal cord, Patients with labyrinth diseases
- Where
- Poland
- Volunteers
- 330 people, healthy volunteers welcome
- Sponsor
- Military Institute od Medicine National Research Institute
Parkinson Disease, Visual Impairment
The Correlation of Reduction of Levodopa and Non-motor Symptoms of Parkinson's Disease After Deep Brain Stimulation
Patients with parkinson disease (PD) usually reduced the dose the levodopa after received deep brain stimulation (DBS). However, studies seldomly mentioned about the influences on non-motors systems after the reduction.
- Trial name
- NCT05901350
- Testing
- Levodopa
- Where
- China
- Volunteers
- 338 people, healthy volunteers welcome
- Sponsor
- Qilu Hospital of Shandong University
Amyotrophic Lateral Sclerosis
Relationship Between Neurological Disability and Visual Impairment in Patients With ALS or Friedreich's Ataxia
The aim of this study is to obtain an early biomarker of amyotrophic lateral sclerosis and Friedreich's Ataxia which allows to diagnose the disease in an initial stage and to follow up the patient with optic coherence tomography…
- Trial name
- NCT03285204
- Where
- Spain
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Jose Luis Urcelay Segura
Concussion, Eye
The Effects of Concussion on Gait and Posture in Individuals With Peripheral Vision Loss
Changes in gait and balance often occur in individuals who have suffered a concussion. In addition, a subset of concussed individuals also experience peripheral vision loss.
- Trial name
- NCT05948501
- Where
- 2 sites in United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Gaylord Hospital, Inc
Nature, Human, Microbial Colonization
Biodiversity Interventions for Assisted Living Centers
Biodiversity is essential for nature and human well-being. Land use has reduced biodiversity in cities, which weakens the functionality of the urban ecosystems and the well-being of citizens.
- Conditions
- Nature, Human, Microbial Colonization, Well-Being, Psychological, Immune System and Related Disorders
- Trial name
- BIWE (NCT06390683)
- Testing
- Rewilding
- Where
- Finland
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Natural Resources Institute Finland
Stroke, Ischemic, Quadrantanopia
Vision Loss Impact on Navigation in Virtual Reality
The purpose of this research is to better understand the impact of cortically-induced blindness (CB) and the compensatory strategies subjects with this condition may develop on naturalistic behaviors, specifically, driving.
- Conditions
- Stroke, Ischemic, Quadrantanopia, Hemianopsia, Homonymous, Hemianopia, Homonymous
- Trial name
- NCT06047717
- Testing
- Virtual Reality Driving Task
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- University of Rochester
Migraine, Glasses
Filter Lenses for the Prevention of Migraine Attacks
The purpose is to investigate whether the Blue Cut for Night filter is better at reducing migraine compared to the FL-41 filter or a filter blocking light below 500 nm. A control group will use clear lenses without filter.
- Conditions
- Migraine, Glasses, Headache, Visual Impairment
- Trial name
- COMFORT (NCT06161129)
- Testing
- Lenses
- Where
- Denmark
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Rune Skovgaard Rasmussen
Feeding Behavior, Sensory Integration Disorder
Feeding Behavior Intervention in Children with Cerebral Visual Impairment
This study was planned to investigate the effects of nutritional education given in addition to sensory integration intervention on feeding behavior, sensory processing and developmental areas in children with Cerebral Visual…
- Conditions
- Feeding Behavior, Sensory Integration Disorder, Cerebral Visual Impairment
- Trial name
- NCT06827743
- Testing
- feeding behavior education, Sensory integration intervention
- Where
- Turkey (Türkiye)
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Trakya University