Clinical trials: Quadrantanopia
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 Field Defect, Peripheral, Stroke
Improving Visual Field Deficits With Noninvasive Brain Stimulation
This is a randomized, pilot interventional study in participants with visual field deficit (VFD) caused by cortical lesion. Damage to the primary visual cortex (V1) causes a contra-lesional, homonymous loss of conscious vision…
- Conditions
- Visual Field Defect, Peripheral, Stroke, Visual Impairment, Hemianopsia
- Trial name
- NCT05085210
- Testing
- transcranial random noise stimulation (tRNS), Computer Based Visual Training, Virtual Reality Based Visual Training
- Where
- United States
- Volunteers
- 24 people
- Sponsor
- Beth Israel Deaconess Medical Center
Stroke Induced Vision Loss, Hemianopia
Visual Restoration for Hemianopia
The purpose of this research is to assess the efficacy of a visual training task on reducing the size of a visual field deficit caused by brain damage in adults, and its ability to improve visual functions in this patient…
- Conditions
- Stroke Induced Vision Loss, Hemianopia, Quadrantanopia
- Trial name
- NCT03350919
- Testing
- Training in the blind field, Training in the intact field
- Where
- 3 sites in United States
- Volunteers
- 48 people
- Sponsor
- University of Rochester
Acute Stroke, Visual Field Loss
Fluoxetine for Visual Recovery After Ischemic Stroke
The purpose of this study is to determine whether fluoxetine, a selective serotonin reuptake inhibitor commonly used for depression, enhances visual recovery after an acute ischemic stroke.
- Trial name
- FLUORESCE (NCT02737930)
- Testing
- Fluoxetine
- Where
- United States
- Volunteers
- 17 people
- Sponsor
- Bogachan Sahin
Vision Loss Partial, Vision; Loss, Both Eyes
Understanding Visual Processing After Occipital Stroke
The purpose of this study is to investigate how visual orientation discrimination and metacognition (i.e., perceptual confidence) are affected by occipital stroke that causes hemianopia and quadrantanopia in adults.
- Conditions
- Vision Loss Partial, Vision; Loss, Both Eyes, Hemianopia, Homonymous, Hemianopia
- Trial name
- NCT06352086
- Sponsor
- University of Rochester
Visual Field Defect, Stroke
Home-based Vision Rehabilitation Guided by Brain Imaging
The BRIGHT (Behavioral Rehabilitation Through Image-Guided Home-based Training) study aims to evaluate the effectiveness of image-guided, home-based perceptual training at improving visual performance in individuals with visual…
- Conditions
- Visual Field Defect, Stroke, Hemianopia Homonymous, Quadrantanopia
- Trial name
- BRIGHT (NCT07635329)
- Testing
- High-level perceptual learning-based training, Low-level perceptual learning-based training
- Where
- United States
- Volunteers
- 100 people
- Sponsor
- Georgetown University
Stroke, Ischemic, Quadrantanopia
Visual Rehabilitation After Occipital Stroke
This research aims to examine changes in plastic potential of the visual system with time from stroke affecting primary visual cortex.
- Conditions
- Stroke, Ischemic, Quadrantanopia, Vision Loss Partial, Visual Field Defect, Peripheral
- Trial name
- NCT04798924
- Testing
- Subacute Training in the intact field, Subacute Training in the blind field, Chronic Training in the blind field
- Where
- United States
- Volunteers
- 60 people
- Sponsor
- University of Rochester
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
Homonymous Hemianopia, Homonymous Quadrantanopia
Reminder-cue Scanning Training for Homonymous Visual Field Loss
This study will evaluate a new approach to training people with visual field loss to scan when driving
- Trial name
- NCT06136169
- Testing
- Reminder-cue scanning training
- Where
- United States
- Volunteers
- 16 people
- Sponsor
- Massachusetts Eye and Ear Infirmary
Homonymous Hemianopsia, Homonymous Quadrantanopia
PAVE (Parallactic Visual-Field Enhancement) System for Treatment of Chronic Visual Field Loss Due to Stroke, Traumatic Brain Injury, or Brain Surgery
This is a research study to evaluate the effectiveness of the PAVE (Parallactic Visual-Field Enhancement) System for the treatment of chronic visual field loss due to stroke, traumatic brain injury, or brain surgery.
- Trial name
- NCT07185971
- Testing
- PAVE (Parallactic Visual-Field Enhancement) treatment using a virtual reality head mounted display
- Where
- 2 sites in United States
- Volunteers
- 20 people
- Sponsor
- NeuroAEye LLC
Stroke, Visual Field Defect
Visual Restoration Using Focused Ultrasound Stimulation and Immersive Virtual Reality After Stroke
This research will explore if brain stimulation combined with virtual reality therapy improves visual impairment. The stimulation technique is called low-intensity focused ultrasound stimulation (LIFUS).
- Conditions
- Stroke, Visual Field Defect, Visual Field Defect Following Cerebrovascular Accident, Hemianopia
- Trial name
- LIFU-IVR (NCT06875206)
- Testing
- Low-intensity focused ultrasound, Immersive virtual reality, Inactive Low-intensity focused ultrasound
- Where
- United States
- Volunteers
- 28 people
- Sponsor
- Duke University
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
Stroke, Neurologic Disorder
Evaluation of Bioness Integrated Therapy System (BITS) Touch Screen Technology to Improve Field Awareness
The Bioness Integrated Therapy System (BITS) (Bioness Inc. Valencia, CA) Touch Screen is an FDA approved device comprised of an interactive touchscreen and diverse program options to challenge patients through the use of visual…
- Conditions
- Stroke, Neurologic Disorder, Traumatic Brain Injury, Acquired Brain Injury
- Trial name
- NCT04930822
- Testing
- Table Top Visual Intervention, Bioness Integrated Therapy System Visual Intervention
- Where
- United States
- Volunteers
- 37 people
- Sponsor
- Gaylord Hospital, Inc
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
Visual Field Defect, Stroke
Vision Improvement Through Behavioral Rehabilitation And Neuroplasticity Training
The VIBRANT (Vision Improvement through Behavioral Rehabilitation And Neuroplasticity Training) study is a prospective, double-blind, crossover design (within-subject) in participants with homonymous hemianopia-a type of visual…
- Conditions
- Visual Field Defect, Stroke, Hemianopia, Quadrantanopia
- Trial name
- VIBRANT (NCT07105358)
- Testing
- transcranial random noise stimulation (tRNS), Perceptual learning-based training
- Where
- United States
- Volunteers
- 30 people
- Sponsor
- Georgetown University
Hemianopia, Quadrantanopia
The Use of Transcranial Direct Current Stimulation (TDCS) to Enhance the Rehabilitative Effect of Vision Restoration Therapy
The purpose of our study is to explore the efficacy of combination of brain stimulation with visual rehabilitation in patients with visual field loss resulting from brain lesions.
- Conditions
- Hemianopia, Quadrantanopia, Scotoma, Visual Field Loss
- Trial name
- NCT00921427
- Testing
- Vision Restoration Therapy (VRT), Transcranial direct current stimulation (tDCS)
- Volunteers
- 20 people
- Sponsor
- Beth Israel Deaconess Medical Center
Complete Hemianopia, Incomplete Hemianopia
Paraorbital-Occipital Alternating Current Stimulation Therapy of Patients With Post-Chiasmatic Lesions
Visual field areas, which are not absolutely blind, are hypothesized to have some residual capacities that constitute their potential for vision restoration.
- Conditions
- Complete Hemianopia, Incomplete Hemianopia, Scotoma, Quadrantanopia
- Trial name
- NCT01418820
- Testing
- Verum stimulation
- Where
- Germany
- Volunteers
- 32 people
- Sponsor
- University of Magdeburg
Hemianopia, Hemianopsia
Rehabilitating Visual Deficits Caused by Stroke
This research aims to understand the efficacy of a visual training task to improve visual loss after stroke, also known as hemianopia.
- Conditions
- Hemianopia, Hemianopsia, Quadrantanopia, Stroke Induced Vision Loss
- Trial name
- NCT04878861
- Testing
- Training in the blind field
- Where
- United Kingdom
- Volunteers
- 20 people
- Sponsor
- University of Oxford