Clinical trials: Reduced Vision
Low Vision
Wearable Echolocation Aids Using Parametric Sound
The objective of this study is to study a novel device designed to aid patients with impaired vision to safely navigate their environment.
- Trial name
- NCT07218991
- Testing
- Wearable Echolocation Device
- Where
- United States
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- The University of Texas Medical Branch, Galveston
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
Visual Impairments, Low Vision Digital Assistance
Effectiveness of a Multi-disciplinary Vision Rehabilitation Programme in Improving the Overall Quality of Life of Visually Impaired Adults
This trial compares multidisciplinary vision rehabilitation and vision rehabilitation services to determine which service works better at improving overall quality of life for adults with visual impairment.
- Conditions
- Visual Impairments, Low Vision Digital Assistance, Adults
- Trial name
- NCT07827040
- Testing
- Multidisciplinary vision rehabilitaion, Vision rehabilitation incorporating low vision training only
- Where
- Hong Kong
- Volunteers
- 1,000 people
- Sponsor
- The Hong Kong Polytechnic University
Age-related Macular Degeneration, Depression
Low Vision Depression Prevention Trial for Age Related Macular Degeneration
This randomized, controlled clinical trial, the Low Vision Depression Prevention TriAL (VITAL), will test the efficacy of collaborative low vision rehabilitation (LVR) to prevent depressive disorders in Age-Related Macular…
- Trial name
- VITAL (NCT00769015)
- Testing
- BA-LVR, ST-LVR
- Where
- United States
- Volunteers
- 188 people
- Sponsor
- Thomas Jefferson University
Retinitis Pigmentosa, Age-related Macular Degeneration
Visual and Functional Assessment in Low Vision Patients
Vision testing is a fundamental part of every optometry and ophthalmology assessment. Traditional vision testing charts are not able to measure vision below a certain level.
- Conditions
- Retinitis Pigmentosa, Age-related Macular Degeneration, Optic Nerve Pathology, Inherited Retinal Dystrophies
- Trial name
- NCT01876147
- Where
- United Kingdom
- Volunteers
- 50 people
- Sponsor
- University of Oxford
Visual Acuity, Refractive Errors
Assessment of Visual Acuity in Refugee Population
The present research process is a prospective clinical study that will be conducted under the auspices of the Democritus University of Thrace (DUTH) in the open accommodation structure for refugees and immigrants of Kavala…
- Conditions
- Visual Acuity, Refractive Errors, Low Vision, Vision Disorders
- Trial name
- NCT05209581
- Testing
- Distance Visual Acuity Examination
- Where
- Greece
- Volunteers
- 330 people, healthy volunteers welcome
- Sponsor
- Democritus University of Thrace
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, Glaucoma, Open Angle
SOLX Gold Shunt Versus Control Implant: Randomized Trial for Refractory Glaucoma
Study Objective: To establish the substantial equivalence of the SOLX Gold Shunt to commercially available aqueous shunts, specifically the Ahmed™ Glaucoma Valve Model FP7, in the ability to reduce intraocular pressure (IOP)…
- Trial name
- NCT00382395
- Testing
- SOLX Gold Shunt GMS-plus, Ahmed FP7 Glaucoma Valve
- Where
- 15 sites in United States, Canada and 3 more
- Volunteers
- 180 people
- Sponsor
- SOLX, Inc.
Retinitis Pigmentosa
Coloured-light in Retinitis Pigmentosa.
This study will assess the effect of 2 different colours of light on colour vision in adults with retinitis pigments (RP). Participants will be 18 years or above with a genetically confirmed molecular diagnosis of RP.
- Trial name
- CLIRP (NCT06224114)
- Testing
- Coloured-light torch, Different coloured-light torch
- Where
- United Kingdom
- Volunteers
- 70 people
- Sponsor
- University College, London
Blindness, Acquired
A Validation of the Functional Low-Vision Observer Rated Assessment (FLORA-20) for Profoundly Blind Individuals
This study aims to validate an observer-rated assessment titled "Functional Low-Vision Observer Rated Assessment (FLORA-20)", which comprises 20 functional vision tasks commonly performed in or around a blind individual's home…
- Trial name
- FLORA-20 (NCT04312763)
- Where
- United States
- Volunteers
- 3 people
- Sponsor
- Second Sight Medical Products
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
Retinal Vein Occlusion, Age Related Macular Degeneration
Efficacy and Safety of Lucentis® (Ranibizumab Intravitreal Injections) in Chilean Patients With Diabetic Macular Edema.
Ranibizumab is a humanized anti-vascular endothelial growth factor (VEGF) monoclonal antibody fragment approved in Chile by the Instituto de Salud Pública for the treatment of diabetic macular edema (DME), retinal vein occlusion…
- Trial name
- NCT02140411
- Testing
- Ranibizumab Intravitreal injections
- Where
- Chile
- Volunteers
- 21 people
- Sponsor
- Novartis Pharmaceuticals
Blindness and Low Vision
Blueberry Effects on Dark Vision and Glare Recovery
Clinical evidence for effects of plant anthocyanins on vision, and particularly night vision is controversial. Two clinical trials were conducted to investigate whether blueberry juice consumption affected visual dark adaptation…
- Trial name
- NCT01942746
- Testing
- Blueberry Juice S2, Blueberry Capsules S2, Blueberry Juice L1
- Where
- Canada
- Volunteers
- 72 people, healthy volunteers welcome
- Sponsor
- Atlantic Food and Horticulture Research Center
Disabilities, Visual Impairment and Blindness (Excl Colour Blindness)
Study Protocol: The Jerte Valley as an Inclusive Outdoor Classroom. Smart and Active Tourism.
To promote the inclusion of people with disabilities, an outdoor intervention will be conducted involving physical activities with adolescents with and without disabilities.
- Trial name
- NCT07609459
- Testing
- Rafting, canoeing and kayaking, Divulgation
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- Universidad de Extremadura
Low Vision Aids, Low Vision
Pilot Study on Improving Mobility and Universal Accessibility for Individuals With Visual Disabilities in Barcelona
The project BCNMob informs about a research study approved by the Ethics Committee of the Hospital Universitario Mútua Terrassa The study aims to improve the Biel Glasses virtual reality glasses to assist patients with low vision…
- Conditions
- Low Vision Aids, Low Vision, Low Vision Blindness, Low Vision Digital Assistance
- Trial name
- BCNMob (NCT06602102)
- Testing
- Mixed reality Glasses
- Where
- Spain
- Volunteers
- 41 people
- Sponsor
- Universitat Politècnica de Catalunya
Vision Loss Night, Vision Disorders
OPI-NXYDLD-303 Safety and Efficacy of Phentolamine Ophthalmic Solution in Keratorefractive Surgery Participants With Decreased Mesopic Visual Acuity
The goal of this clinical trial is to learn if Phentolamine Ophthalmic Solution works to treat adults that have had keratorefractive surgery and have decreased visual acuity under mesopic conditions.
- Trial name
- LYNX-3 (NCT07140783)
- Testing
- 0.75% Phentolamine Ophthalmic Solution
- Where
- 20 sites in United States
- Volunteers
- 580 people
- Sponsor
- Opus Genetics, Inc
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
Low Vision Aids
Shilangqing Smart Reading Aid for Improving Reading Ability in Children With Low Vision
This clinical trial aims to assess the efficacy and safety of the Shilangqing Smart Reading Aid, a head-mounted device integrating XR and AI technologies, in improving reading performance and quality of life among children with…
- Trial name
- NCT07336069
- Testing
- "Langshiqng" visual aid device
- Where
- China
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen 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
Glaucoma
Additive Intra-ocular Pressure Reduction Effect of Fixed Combination of Maleate Timolol 0.5%/Dorzolamide 2% on Monotherapy With Latanoprost in Patients With Elevated Intra-ocular Pressure
The purpose of this study is to evaluate the additive effect of dorzolamide/timolol fixed combination in patients undergoing monotherapy with latanoprost.
- Trial name
- NCT00906594
- Testing
- latanoprost
- Where
- Brazil
- Volunteers
- 56 people
- Sponsor
- University of Sao Paulo