Clinical trials: Low Vision, Both Eyes
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
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
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
Trauma, Infections
Ophthalmological Emergencies and COVID-19 Pandemia
To analyze how the COVID 19 pandemia has affected the patient's accesses to the Ophthalmological Emergency Department of a tertiary referral center in northern Italy, during the lockdown period.
- Conditions
- Trauma, Infections, Vision; Loss, Both Eyes
- Trial name
- NCT05065788
- Testing
- data collection
- Where
- Italy
- Volunteers
- 500 people
- Sponsor
- Università degli Studi dell'Insubria
Retinitis Pigmentosa (RP), Rod Cone Dystrophy
Brain Stimulation Effects on Orientation and Mobility Skills in Adults With Vision Impairment
This pilot clinical trial evaluates whether non-invasive brain stimulation improves the orientation and mobility (O\&M) skills of individuals with constricted visual fields in both eyes. The study is composed of three visits.
- Conditions
- Retinitis Pigmentosa (RP), Rod Cone Dystrophy, Visually Impaired Persons, Peripheral Visual Field Defect of Both Eyes
- Trial name
- NCT07341763
- Testing
- Active hf-tRNS.
- Where
- Canada
- Volunteers
- 20 people
- Sponsor
- University of Waterloo
Low Vision, Both Eyes
Virtual Reality-Base Intelligent Orientation and Mobility Specialists Trial
The human subject research is a randomized, controlled training trial that tests the effectiveness of three Virtual Reality-based Intelligent Orientation and Mobility Specialists (VR-IOMSs) in teaching orientation and mobility…
- Trial name
- VR-IOMS (NCT04639531)
- Testing
- Orientation and Mobility Training with VR-IOMSs, Orientation and Mobility Training with COMS, No Orientation and Mobility Training
- Where
- 2 sites in United States
- Volunteers
- 117 people
- Sponsor
- University of Alabama at Birmingham
Refractive Error - Myopia Axial, Astigmatism
Refractive Accuracy of "2WIN" and Portable Autorefractors
Youth and some adults have photoscreening refractions and hand-held auto refraction before cycloplegia refraction during new and follow up eye examinations.
- Conditions
- Refractive Error - Myopia Axial, Astigmatism, Accomodation, Visual Impairment
- Trial name
- NCT04249505
- Testing
- "2WIN" Photoscreener, "Plusoptix A12", "Retinomax"
- Where
- United States
- Volunteers
- 708 people, healthy volunteers welcome
- Sponsor
- Alaska Blind Child Discovery
Moderate or Severe Vision Impairment, Both Eyes
The Effectiveness of Portable Electronic Vision Enhancement Systems (p-EVES) for Near Vision in Visual Impairment
Over 1 million people in the UK suffer from untreatable visual impairment, many of them elderly. The major complaint of visually impaired people is their inability to carry out simple tasks, especially those involving reading.
- Trial name
- p-EVES (NCT01701700)
- Testing
- portable electronic magnifier, optical aids
- Where
- United Kingdom
- Volunteers
- 100 people
- Sponsor
- Manchester University NHS Foundation Trust