Clinical trials: Visual Impairments
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
Vision; Disorder, Loss, Caregiver Burnout
Virtual Health Education vs Meditation in Irreversible Age-Related Vision Loss Patients and Their Caregivers
Vision loss is common among older adults and leads to an increased risk for depression and difficulties in daily tasks, thus requiring dependence on caregivers.
- Conditions
- Vision; Disorder, Loss, Caregiver Burnout, Quality of Life, Depression
- Trial name
- NCT04583748
- Testing
- Sahaj Samadhi Meditation, Health Enhancement Program
- Volunteers
- healthy volunteers welcome
- Sponsor
- London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's
Age Related Macular Degeneration
Study on Visual Function Impairments in Dry Age-related Macular Degeneration
The study hypothesis is that patients with dry age-related macular degeneration experience visual function impairments such as defects in dark adaptation, glare intolerance, poor light transition and reading in low lighting…
- Trial name
- NCT01822873
- Where
- United States
- Volunteers
- 128 people, healthy volunteers welcome
- Sponsor
- Duke University
Visual Impairment, Refractive Error
Frequency of Visual Impairment Among School Children and Effectiveness of mHealth Referral Reminder on Uptake of Referral Services
This study tested whether mobile health (mHealth) tools can affect referral uptake among schoolchildren with vision problems.Visual impairment in children often goes untreated in low- and middle-income countries, even when…
- Trial name
- NCT06616051
- Testing
- Multicomponent SMS reminder
- Where
- Pakistan
- Volunteers
- 320 people, healthy volunteers welcome
- Sponsor
- Syed Fawad Mashhadi
Depression in Old Age, Ketamine
Effect of Ketamine in Depressive Symptoms of Elderly Patients With Visual Impairment.
the prevalence of depression in elderly is from 4 to 30% and is associated with a lower quality of life mayor medical comorbidity, and increased mortality.
- Trial name
- NCT03473431
- Testing
- Ketamine, control
- Where
- Mexico
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Instituto Mexicano del Seguro Social
Glaucoma, Retinal Pathology
Ability of Patients With Low Vision to Properly Instill Eye Drops
The investigators are interested in seeing how people with low vision (decreased visual acuity or restricted visual fields) instill eye drops into their own eyes.
- Trial name
- NCT00760240
- Where
- United States
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Mid-Atlantic Glaucoma Experts
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
Myopia, Visual Fatigue
Discussion on the Effectiveness of Tea on Blood Pressure, Body Composition and Vision Problems in College Students
Background: Tea is a universal beverage and one of the most popular drinks around the world. Some cell and animal experiments have pointed out that drinking tea may be related to hypotension, body composition and vision problems…
- Conditions
- Myopia, Visual Fatigue, Blood Pressure, Body Composition
- Trial name
- NCT06570226
- Testing
- hibiscus tea
- Where
- Taiwan
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Hungkuang University
Vision Impairment
Providing Access to the Visual Environment
Providing Access to the Visual Environment is a pediatric low vision grant which has the ability to provide comprehensive, interdisciplinary low vision rehabilitation services to every child in Tennessee with a vision impairment.
- Trial name
- NCT00341744
- Where
- United States
- Volunteers
- 795 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University
Problem With Vision Blindness, Intraocular Pressure
Intraocular Pressure During Abdominal Aortic Aneurysm (AAA) Repair
The objective of this study will be to answer a clinical question that has not already been investigated; that is, what are the effects of aortic infra-renal clamping and unclamping on intraocular pressure during Abdominal Aortic…
- Conditions
- Problem With Vision Blindness, Intraocular Pressure, Ischemic Optic Neuropathy
- Trial name
- NCT00450294
- Where
- Canada
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- University of Manitoba
Visual Impairment, Healthy
Touching the World With a Cane: Cognitive and Neural Processes
The use of tools is ubiquitous in our lives and allows us to expand the sensorimotor capacities of our body. Much research has been done on the subject in sighted people over the past decades.
- Trial name
- TOOL_TOUCH (NCT05199896)
- Testing
- Behavioral protocol, EEG protocol, fMRI protocol
- Where
- France
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Hospices Civils de Lyon
Vision Disorders
Modification in Cortical Activation in Pseudophakic Patients With Visual Difficulties After a Multifocal Implantation
This study will highlight differences in cortical activation between asymptomatic and symptomatic patients.
- Trial name
- PlainteIMF (NCT02529098)
- Testing
- fMRI
- Where
- France
- Volunteers
- healthy volunteers welcome
- Sponsor
- University Hospital, Toulouse
Relative Afferent Pupil Defect (RAPD)
Measuring Relative Afferent Pupillary Defect
The goal of this prospective reliability study is to test the effectiveness of a commercially available, off-the-shelf virtual reality head-mounted display (VR HMD) and machine learning (ML) algorithms in detecting Relative…
- Trial name
- RAPD (NCT05799066)
- Testing
- Swinging Light test, Virtual Reality Head-Mounted Display (VR HMD)
- Where
- United States
- Volunteers
- 71 people, healthy volunteers welcome
- Sponsor
- The University of Texas Medical Branch, Galveston
Emotional Problem, Behavior Problem
Mindfulness-Based Intervention for Emotional and Behavioural Problems of Students With Visual Impairment
Current study will be conducted on the Effectiveness of Mindfulness-Based Intervention for Emotional and Behavioural Problems of Students with Visual Impairment.
- Trial name
- NCT06228950
- Testing
- Mindfulness-Based Stress Reduction
- Where
- Pakistan
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Fatima Jinnah Women 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
Visual Impairment, Myopia
At-home Testing Refraction Results With Best Corrected Visual Acuity (BCVA) Outcomes in Adults
This study is aimed at examining the BCVA from try-on glasses constructed from measurements from the EyeQue VisionCheck.
- Conditions
- Visual Impairment, Myopia, Hyperopia, Astigmatism
- Trial name
- NCT04820218
- Testing
- With Try-on glasses
- Where
- United States
- Volunteers
- 53 people, healthy volunteers welcome
- Sponsor
- EyeQue Corp.
Visual Impairment, Ocular Illness
Pupillometry and Locus Coeruleus Activation (PuLCA)
This project will apply non-invasive, trans-cutaneous vagal nerve stimulation using various stimulation parameters to young, healthy adults to find the optimal set of parameters to elicit pupil response.
- Trial name
- PuLCA (NCT04579653)
- Testing
- transcutaneous electrical nerve stimulation devices
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of Florida
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