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Active clinical trials for "Hemianopsia"

Results 11-20 of 32

Feasibility Test of Virtual Reality Obstacle Detection for Low Vision Walking

HemianopsiaHomonymous Hemianopia5 more

The investigators are developing a new test of pedestrian hazard detection in virtual reality (VR) head-mounted display (HMD) headset, which shows virtual oncoming pedestrians in 3D while subjects are walking in real-world environment, for evaluation of visual field expansion to improve mobility in people with visual field loss.

Recruiting11 enrollment criteria

Feasibility Tests for Various Prism Configurations for Visual Field Loss

HemianopiaHomonymous5 more

The investigators will develop and test different configurations of high-power prisms to expand the field of vision of patients with visual field loss to assist them with obstacle detection when walking. The study will involve multiple visits (typically four) to Schepens Eye Research Institute for fitting and testing with the prism glasses. The overall objective is to determine best designs and fitting parameters for implementation in prism devices for future clinical trials.

Recruiting9 enrollment criteria

Visual Rehabilitation in Children With Homonymous Hemianopia: a Pilot Study on Virtual-reality Stimulation...

HemianopiaBrain Tumor2 more

There are currently no visual rehabilitation strategies for children presenting visual field defects consecutive to a brain tumor or its treatment. This study seeks to investigate the use of a home-based stimulation visual rehabilitation program using immerse-virtual reality (IVR) in children aged 4-10 years old with a diagnosis of hemianopia

Not yet recruiting14 enrollment criteria

VR System for Cross-modal Rehabilitation of Hemianopia

HemianopiaHomonymous2 more

The purpose of this research study is to investigate the effectiveness of a new rehabilitation for visual hemianopia. The study team believes a cross-modal rehabilitation technique delivered by a virtual reality system can help restore the visual field for subjects with homonymous hemianopia.

Completed4 enrollment criteria

Visual Perceptual Learning for the Treatment of Visual Field Defect

Visual Fields HemianopsiaHemianopsia1 more

This study evaluates the efficacy of visual perceptual learning for the treatment of visual field defect caused by brain damage. Half of participants will receive visual perceptual training using the Nunap Vision, while the other half will receive sham training using the Nunap Vision-C.

Completed21 enrollment criteria

Visual Restoration for Hemianopia

Stroke Induced Vision LossHemianopia1 more

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 population.

Completed21 enrollment criteria

Restoration vs. Compensation in Neurovisual Rehabilitation of Visual Field Defects

HemianopiaBrain Injuries1 more

Visual field defects (VFD) are a frequent effect of cerebral lesions especially after posterior cerebral artery stroke. The present study was conducted to compare effects of vision restoration training (VRT) and compensation training (Visual Exploration Training, VET) on visual field performance.

Completed12 enrollment criteria

The Use of Transcranial Direct Current Stimulation (TDCS) to Enhance the Rehabilitative Effect of...

HemianopiaQuadrantanopia2 more

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. It is shown that the effect of sensorimotor training of hand can be enhanced in patients with stroke using brain stimulation. We decided to explore this combination for visual field loss because visual dysfunction following brain lesions is considered intractable. We hypothesize that combination of noninvasive brain stimulation, in the form of transcranial direct current stimulation (tDCS), with visual rehabilitation would have greater efficacy than visual rehabilitation alone.

Completed14 enrollment criteria

Vision Loss Impact on Navigation in Virtual Reality

StrokeIschemic13 more

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. Using a novel Virtual Reality (VR) program, the researchers will gather data on steering behavior in a variety of simulated naturalistic environments. Through the combined use of computer vision, deep learning, and gaze-contingent manipulations of the visual field, this work will test the central hypothesis that changes to visually guided steering behaviors in CB are a consequence of changes to the visual sampling and processing of task-related motion information (i.e., optic flow).

Not yet recruiting31 enrollment criteria

Combined tDCS and Vision Restoration Training in Subacute Stroke Rehabilitation: A Pilot Study

HemianopiaStroke

The purpose of this Study is to determine whether non-invasive transcranial direct current stimulation (tDCS) is effective in increasing rehabilitation effects after stroke in visual Cortex.

Completed7 enrollment criteria

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