Clinical trials: Vision, Low
Vision, Low, Blindness
Testing Tactile Aids With Blind Subjects
The objective of this project is to create richer tactile aids by using materials chemistry to create tactile sensations in tactile aids, as an alternative to traditional physical bumps, lines, or textures.
- Trial name
- NCT06237829
- Testing
- Single bump acuity, Optimal spacing between bumps, Improving signal from a single bump with designer materials
- Where
- United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- University of Delaware
Primary Open Angle Glaucoma, Normal Tension Glaucoma
Correlation of Orbital Cerebrospinal Fluid Pressure and Retinal Venous Outflow in Primary Open-angle Glaucoma
A spontaneous venous pulsation over the optic disc is an ophthalmological sign that can potentially be found in up to 98% of healthy individuals.
- Trial name
- NCT01795014
- Where
- Belgium
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Universitaire Ziekenhuizen KU Leuven
Meibomian Gland Dysfunction
The Impact of Dry Eye Syndrome on Metrics of Low Contrast Vision Before and After Meibomian Gland Expression
The study aims to determine the impact of Meibomian Gland Dysfunction (MGD) dry eye on low contrast black/white (luminance) and cone color sensitivity performance and improvement in these functions after in-house non-invasive…
- Trial name
- NCT05713981
- Testing
- Meibomian gland (MG) expression
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- University of the Incarnate Word
Vision Disorders, Vision, Low
Viewing Strategy Training in Children With (Cerebral) Visual Impairment
Viewing strategies are strategies used to process visual Information. Many children with visual impairment seem to lack systematic viewing strategies.
- Trial name
- NCT05600140
- Testing
- Viewing strategy training
- Where
- Netherlands
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Royal Dutch Visio
Visual Impairment, Amblyopia Suspect
DigiVis: Self-testing Vision App for Telephone Consultations
This trial aims to assess the accuracy and test-retest variability of a new digital app which enables community visual acuity testing without requirement of an trained examiner.
- Trial name
- NCT04482387
- Testing
- DigiVis visual acuity app
- Where
- United Kingdom
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Cambridge University Hospitals NHS Foundation Trust
Glaucoma
The Water Drinking Test in Glaucoma Study
To investigate the correlation and agreement between the intraocular pressure peaks detected during the water drinking test and modified diurnal tension curve in glaucomatous eyes and to analyse whether this is associated with…
- Trial name
- WIGS (NCT05283031)
- Testing
- Modified Diurnal Tension Curve
- Where
- United Kingdom
- Volunteers
- 46 people, healthy volunteers welcome
- Sponsor
- Imperial College London
Migraine, Glasses
Filter Lenses for the Prevention of Migraine Attacks
The purpose is to investigate whether the Blue Cut for Night filter is better at reducing migraine compared to the FL-41 filter or a filter blocking light below 500 nm. A control group will use clear lenses without filter.
- Conditions
- Migraine, Glasses, Headache, Visual Impairment
- Trial name
- COMFORT (NCT06161129)
- Testing
- Lenses
- Where
- Denmark
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Rune Skovgaard Rasmussen
Blindness, Visual Impairment
The Impact of the Years of Blindness on Sleep and Dreaming Processes and the Relationships With Spatial Abilities
This study aims to assess the impact of blindness on sleep and dreaming processes and the relationship with spatial perceptual performance, examining the link with clinical and psychological indices, neurobiological features, and…
- Trial name
- NCT06631807
- Where
- Italy
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Istituto Italiano di Tecnologia
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
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
Development and Validation of an Automated Self-administered Visual Acuity System
Visual acuity tests, commonly conducted in clinics and used for health screenings, are becoming more in demand due to an aging population.
- Trial name
- AutoVA (NCT06540001)
- Testing
- Automated visual acuity
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Tan Tock Seng Hospital
Low Vision Digital Assistance
Development of an ICT Platform-Awareness System for the Support of Low Vision
Low Vision (LV) has a detrimental impact on Quality of Life (QoL) of affected individual's and is considered a major healthcare problem according to World Health Organization.
- Trial name
- LIFE4LV (NCT05184036)
- Testing
- Low Vision
- Where
- Greece
- Volunteers
- 500 people, healthy volunteers welcome
- Sponsor
- Aristotle University Of Thessaloniki
Obstructive Sleep Apnea Syndrome
Study of Ocular Blood Flow in Patients With Glaucoma and/or Obstructive Sleep Apnea Syndrome (OSAS)
Obstructive sleep apnea syndrome (OSAS) is a common disease, with a prevalence evaluated between 5 - 7% in the general population.
- Trial name
- NCT00874913
- Testing
- measurement of ocular blood flow
- Where
- France
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- University Hospital, Grenoble
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
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
Visual Impairment and Blindness (Excl Colour Blindness)
A Trial of Tai Chi Intervention for Youngsters with Visual Impairments
Investigators conducted a single-blind, randomized trial of Taijiquan exercise as compared with a control intervention consisting of wellness education and jogging for youngsters with visual impairments.
- Trial name
- NCT06450340
- Testing
- Moderate-intensity aerobic exercise refers to rhythmic and long-lasting exercise with increased heart rate, slight sweating and slight wheezing.
- Where
- China
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- Yanyun Zhang
Open Angle Glaucoma, Normal Tension Glaucoma
Study on the Oxygen Saturation in Pulsating and Non-pulsating Central Retinal Veins
Retinal ischemia is thought to play an important role in the pathogenesis of glaucoma. Recent findings have confirmed that there is a direct correlation between the levels of venous oxygen saturation and the degree of the…
- Trial name
- NCT01794442
- Where
- Belgium
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Universitaire Ziekenhuizen KU Leuven
Cortical Blindness, Stroke Ischemic
Mechanisms of Visual Restoration After Occipital Stroke
This project will collect brain imaging data to quantify the effects of early visual cortex damage and visual training interventions on the structure and function of the residual visual system.
- Conditions
- Cortical Blindness, Stroke Ischemic, Vision Loss Partial, Visual Fields Hemianopsia
- Trial name
- MOVROS (NCT07134777)
- Testing
- MRI
- Where
- United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- University of Rochester
Near Infrared Spectroscopy
Cerebral Oximetry in Newborns - Comparing INVOS 5100 and FORE-SIGHT Cerebral Oximeters
Regional tissue oxygenation (rStO2) can be monitored by near infrared spectroscopy. The commercial devices FORE-SIGHT (CASMED) and INVOS (COVIDIEN) will be used simultaneously to test for their relative sensitivity for low oxygen…
- Trial name
- NCT01665287
- Where
- Denmark
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Copenhagen University Hospital, Rigshospitalet
Sensory Integration Disorder
Sensory Integration for Infants With Cortical Visual Impairment
Our study examines the effect of sensory integration training on sensory, motor and oculomotor skills in infants with cortical vision impairment .
- Trial name
- NCT05431647
- Testing
- Sensory integration therapy
- Where
- Turkey (Türkiye)
- Volunteers
- 34 people, healthy volunteers welcome
- Sponsor
- Hacettepe University