Clinical trials: Vision Impairment and Blindness
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
Visual Impairment and Blindness (Excl Colour Blindness)
A Trial of Tai Chi Intervention for Youngsters with Visual Impairments
Investigators conducted a single-blind, randomized trial of Taijiquan exercise as compared with a control intervention consisting of wellness education and jogging for youngsters with visual impairments.
- Trial name
- NCT06450340
- Testing
- Moderate-intensity aerobic exercise refers to rhythmic and long-lasting exercise with increased heart rate, slight sweating and slight wheezing.
- Where
- China
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- Yanyun Zhang
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
Vision Impairment, Blindness
Assessment of the Validity, Reliability, and Feasibility of Two Smartphone Applications for Testing the Visual Acuity
Visual acuity (VA) is the most common measure of visual function globally. In clinical settings and during screening events, VA is an important measure to quantify changes in vision over time.
- Trial name
- NCT04936100
- Testing
- Assessment of distance and near visual acuity using "Vision Screening module" of "Easy Vision" application, Assessment of distance and near visual acuity using "Test Yourself module" of "Easy Vision" application, Assessment of distance and near visual acuity using "Peek Acuity" application
- Where
- Iran
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Shahid Beheshti University of Medical Sciences
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
Neurocognitive Disorders, Post Operative Delirium
Safe Brain Initiative, Operationalizing Precision Anaesthesia
Perioperatively, patients experience an unnecessarily high level of side effects associated with their treatment. These side effects include nausea, severe pain, anxiety, and stress.
- Conditions
- Neurocognitive Disorders, Post Operative Delirium, Pain, Nausea
- Trial name
- SBI (NCT05765162)
- Testing
- Patient reported ourcomes
- Where
- Denmark
- Volunteers
- 15,000 people, healthy volunteers welcome
- Sponsor
- University of Southern Denmark
Blindness
Evaluation of the Efficacy of the BrainPort Vision Pro on the Performance of Daily Activities in the Profoundly Blind French Population
The purpose of the study is to evaluate the effectiveness and safety of the BrainPort® Vision Pro, an electronic oral assistive device, in the performance of daily tasks by French persons who have residual vision limited to light…
- Trial name
- NCT04725760
- Testing
- BrainPort Vision Pro
- Where
- 7 sites in France
- Volunteers
- 125 people, healthy volunteers welcome
- Sponsor
- Wicab
Stroke, Ischemic, Hemianopia, Homonymous
Statistical Learning as a Novel Intervention for Cortical Blindness
This project aims to develop a novel visual training paradigm for use in visually-intact participants and those sufferings from stroke-induced visual impairments.
- Conditions
- Stroke, Ischemic, Hemianopia, Homonymous, Hemianopsia, Occipital Lobe Infarct
- Trial name
- NCT06578117
- Testing
- Vision Training and Learning Task
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Rochester
Blindness
Virtual Reality Mobility Training System for Veterans With Vision Loss
This is a two-year proof-of-concept study to evaluate a new Virtual Reality (VR) "holographic" sound system for use as an audiological Orientation and Mobility (O\&M) training tool
- Trial name
- NCT00333879
- Testing
- Virtual Sound System
- Where
- United States
- Volunteers
- 4 people, healthy volunteers welcome
- Sponsor
- US Department of Veterans Affairs
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
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
Dry Age-related Macular Degeneration, Vision Impairment and Blindness
Vision Improvement for Legally Blind Dry AMD Patients
This retrospective observational study is intended to assess the feasibility of using a nonsignificant risk device for vision improvement for legally blind dry AMD patients.
- Trial name
- NCT04875234
- Testing
- Clear-K Low Vision Aid Treatment
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Optimal Acuity Corporation
Glaucoma, Suspect, Diabetic Retinopathy
Eye Health Intervention Study in Upper Manhattan
Individuals living in Upper Manhattan have limited access to eye care, high vision impairment rates, and poor ocular health outcomes.
- Conditions
- Glaucoma, Suspect, Diabetic Retinopathy, Cataract, Refractive Errors
- Trial name
- EYES-UM (NCT06112431)
- Testing
- Intervention, Usual Care
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Columbia University
Blindness, Visual Impairment
MySpace: the Role of Vision in Representing Space
My Space aims to identify the ontogenesis of spatial representation through cross-sectional and longitudinal studies in infants, children, and adolescents with typical and atypical development (visual impairments).
- Trial name
- NCT06364605
- Testing
- Rehabilitation with the iReach novel multisensory medical device
- Where
- Italy
- Volunteers
- 720 people, healthy volunteers welcome
- Sponsor
- Istituto Italiano di Tecnologia
Blindness, Visual Impairment
The Impact of the Years of Blindness on Sleep and Dreaming Processes and the Relationships With Spatial Abilities
This study aims to assess the impact of blindness on sleep and dreaming processes and the relationship with spatial perceptual performance, examining the link with clinical and psychological indices, neurobiological features, and…
- Trial name
- NCT06631807
- Where
- Italy
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Istituto Italiano di Tecnologia
Blindness Congenital
Comparison of Balance and Coordination Parameters of Visually Impaired and Healthy Individuals
The aim of this [observational study] is to examine balance in multiple aspects by comparing balance, coordination, and gait parameters between congenitally blind individuals and healthy individuals with multiple scales.
- Trial name
- NCT06687915
- Where
- Turkey (Türkiye)
- Volunteers
- 38 people, healthy volunteers welcome
- Sponsor
- Bahçeşehir University
Vision Impairment and Blindness, Glaucoma
Developing and Testing a Model to Identify Preventive Vision Loss Among Older Patients in General Practice
In this cohort study, the investigators will test vision screenings in Danish general practice for patients over 70 years of age with minimum one chronic condition.
- Conditions
- Vision Impairment and Blindness, Glaucoma, Age-Related Macular Degeneration, Cataract
- Trial name
- DETECT (NCT07015034)
- Testing
- focus on vision impairment in older patients in general practice
- Where
- 2 sites in Denmark
- Volunteers
- 460 people, healthy volunteers welcome
- Sponsor
- University of Copenhagen
Central Visual Impairment
Training Oculo-motor Control to Improve Vision When Using a Preferred Retinal Locus
When high-detail vision is lost due to a retinal disease such as macular degeneration, people see poorly, and have difficulty with eye movements (oculo-motor control).
- Trial name
- NCT05637385
- Testing
- Training of perception and oculo-motor control
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Russell L. Woods
Cortical Blindness, Stroke Ischemic
Mechanisms of Visual Restoration After Occipital Stroke
This project will collect brain imaging data to quantify the effects of early visual cortex damage and visual training interventions on the structure and function of the residual visual system.
- Conditions
- Cortical Blindness, Stroke Ischemic, Vision Loss Partial, Visual Fields Hemianopsia
- Trial name
- MOVROS (NCT07134777)
- Testing
- MRI
- Where
- United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- University of Rochester
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