Clinical trials: Visual Impairment
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
Hearing Loss, Hearing Loss, Age-Related
Sight and Hearing Investigation Into Effects on Delirium
The goal of this observational study is to learn about sensory loss in hospital patients with delirium. The main questions it aims to answer are: Are hearing and vision loss related to increased risk of having delirium? Do…
- Conditions
- Hearing Loss, Hearing Loss, Age-Related, Hearing Disability, Delirium
- Trial name
- SHIELD (NCT06176625)
- Testing
- Communication Signage, Amplifier Use
- Where
- United States
- Volunteers
- 1,543 people, healthy volunteers welcome
- Sponsor
- Johns Hopkins University
Hypoxia, Altitude
Colour Vision Impairment During Acute Hypobaric Hypoxia
This study analyses the impairment of colour vision during hypobaric hypoxia in volunteers of different groups.
- Trial name
- NCT05584813
- Testing
- Hypobaric Hypoxia
- Where
- Germany
- Volunteers
- 54 people, healthy volunteers welcome
- Sponsor
- Universitätsklinikum Köln
Presbyopia, Low Vision
Ocular Biomarkers for Successful Premium Trifocal Intra-ocular Lenses Implantation
The purpose of this study is to identify ocular biomarkers that can predict the success of phacoemulsification with bilateral AT LISA try 839MP (Carl Zeiss Meditec AG) implantation to achieve satisfactory post-post-operativly…
- Trial name
- NCT05863247
- Testing
- Patient Reported Outcomes / Biometric data revision
- Where
- Portugal
- Volunteers
- 154 people, healthy volunteers welcome
- Sponsor
- Hospital dos Lusíadas
Visual Impairment
Post-market Evaluation of OdySight App to Monitor Near Visual Acuity at Home (TIL002)
OdySight is a mobile application allowing self-testing of visual parameters including near visual acuity and communication of the data to an online dashboard to patient's doctors.
- Trial name
- TIL002 (NCT05510479)
- Testing
- Software as medical device
- Where
- 3 sites in France
- Volunteers
- 58 people, healthy volunteers welcome
- Sponsor
- Tilak Healthcare
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
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
Eye Disease
Characterization of Potential Biomarkers of Eye Disease and Vision
Characterize potential biomarkers of sight-threatening eye diseases based on the information acquired in clinical practice at CEC, AIBILI
- Trial name
- EYE-MARKER (NCT02500862)
- Where
- Portugal
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Association for Innovation and Biomedical Research on Light and Image
Dry Age-related Macular Degeneration
Observational Study of Vision Improvement in Late Stage Dry AMD Patients
The purpose of this study is to assess the vision improvement achieved by patients with late stage dry age-related macular degeneration who received corneal treatments by a low vision aid device.
- Trial name
- NCT04349254
- Testing
- Corneal treatment by a low vision aid device
- Where
- Canada
- Volunteers
- 17 people, healthy volunteers welcome
- Sponsor
- Optimal Acuity Corporation
Persons With Visual Disabilities, Breast Neoplasms
Breast and Cervical Cancer Awareness Training in Visually Impaired Women
This quasi-experimental study aims to determine whether a breast and cervical cancer awareness training program can increase participation in cancer screening among women with visual impairments.
- Conditions
- Persons With Visual Disabilities, Breast Neoplasms, Uterine Cervical Neoplasms, Awareness
- Trial name
- GORSEM (NCT07541859)
- Testing
- Cancer Screening Awareness Education for Visually Impaired Women
- Where
- 2 sites in Turkey (Türkiye)
- Volunteers
- 74 people, healthy volunteers welcome
- Sponsor
- Marmara University
Blindness, Blindness, Acquired
Advanced Spatiomotor Rehabilitation for Navigation in Blindness & Visual Impairment
One of the most challenging tasks for blind and visually impaired individuals is navigation through a complex environment. The goal of the present multidisciplinary study is to increase spatial-cognition abilities in people who…
- Conditions
- Blindness, Blindness, Acquired, Low Vision, Blindness, Complete
- Trial name
- NCT05377853
- Testing
- Cognitive-Kinesthetic Navigational Training
- Where
- United States
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- Smith-Kettlewell Eye Research Institute
Vision Loss
First-Sight Refractive Error Correction in the Developing World
The aim of this study is to test the efficacy of the First-Sight refractive kit designed to provide refractive correction of simple hyperopia, myopia and astigmatism with autorefraction.
- Trial name
- NCT01598818
- Where
- 2 sites in United States, Haiti
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- University of Nebraska
Breast Cancer Awareness and BSE in Visually Impaired Women
Visually Impaired Women Model-based Cancer Education and Breast Self-examination
The aim of our study was to raise awareness among visually impaired women, who are in the vulnerable group, about breast cancer, which ranks first among female cancers, and to teach breast self-examination.
- Trial name
- NCT06274762
- Testing
- Training and BSE application on a model
- Where
- Turkey (Türkiye)
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Marmara University
Neurofibromatosis Type 1 (NF1), NF2-related Schwannomatosis
How Can the Experience of Hospital Outpatient Departments be Improved?
This project aims to improve outpatient departments by working with patients and staff to make these spaces more inclusive for people with sensory challenges (it focuses on people with nerve tumour conditions as they are more…
- Trial name
- NCT07818213
- Testing
- Qualitative data collection activities
- Where
- United Kingdom
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- King's College London
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
Visual Impairment
Validity of at Home Visual Acuity Measurements for Telemedicine During Corona Virus (COVID-19) Pandemic
Prompted by the current COVID-19 pandemic, the American Academy of Ophthalmology has recommended the use of telemedicine to continue ophthalmic care while maintaining patient and provider social distancing.
- Trial name
- NCT04391166
- Testing
- Non invasive visual acuity testing
- Where
- United States
- Volunteers
- 108 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University Medical Center
Visual Impairment, Age-Related Macular Degeneration (AMD)
Prevalence and Determinants of Shoulder Girdle Musculoskeletal Complaints in Geriatric Patients With Diminished Vision
This case-control study aims to investigate the prevalence and determinants of shoulder girdle musculoskeletal complaints (pain, spasm, stiffness, range of motion impairments) in geriatric patients (aged 60+) with diminished…
- Conditions
- Visual Impairment, Age-Related Macular Degeneration (AMD), Musculoskeletal Pain, Shoulder Pain
- Trial name
- NCT07206654
- Where
- Egypt
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Beni-Suef University
Macular Degeneration, Age-Related, Diabetic Retinopathy
Visual Enhancement Device in Low Vision Patients
This study will be a prospective, non-randomized study of low-vision individuals diagnosed with either age-related macular degeneration (AMD) or diabetic macular edema with ETDRS visual acuity from 20/60 to 20/400 in both eyes…
- Trial name
- Evergaze (NCT03794752)
- Testing
- Head-Mounted Visual Enhancement Device
- Volunteers
- 8 people, healthy volunteers welcome
- Sponsor
- University of Texas Southwestern Medical Center
Psychophysiology, Visually Impaired Persons
Study of Effectiveness of Audio Guided Deep Breathing on Improving the Quality of Life of Physically Disabled Group
Diaphragmatic breathing brings different advantages to improve physical and mental health but it could be difficult for the physically disabled group to follow the practice by themselves especially those with vision impairment.
- Conditions
- Psychophysiology, Visually Impaired Persons, Physiological Phenomena, Psychological Stress
- Trial name
- NCT05396027
- Testing
- Audio-guided deep breathing
- Where
- Malaysia
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Universiti Tunku Abdul Rahman
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