Clinical trials: Blindness
Blindness, Acquired, Blindness Congenital
Effects of Transcranial Direct Current Stimulation With Proprioceptive Training in Blind People
Postural control requires the integration of the vestibular, visual, and somatosensory systems. Vision, in particular, exerts a considerable influence on body sway during activities that require balance.
- Trial name
- NCT03173105
- Testing
- active tDCS, Dynamic proprioceptive exercises, static proprioceptive exercises
- Where
- Brazil
- Volunteers
- 40 people
- Sponsor
- Salgado Institute of Integral Health
Neovascular Age-related Macular Degeneration
Safety and Efficacy of ADVM-022 in Treatment-Experienced Patients With Neovascular Age-related Macular Degeneration [LUNA]
Neovascular or wet age-related macular degeneration (nAMD) is a degenerative ocular disease associated with the infiltration of abnormal blood vessels in the retina from the underlying choroid layer and is a leading cause of…
- Trial name
- NCT05536973
- Testing
- ADVM-022
- Where
- 39 sites in United States, France and 1 more
- Volunteers
- 69 people
- Sponsor
- Adverum Biotechnologies, Inc.
Central Visual Impairment, Macular Degeneration
Factors in Learning And Plasticity: Healthy Vision
A greater understanding of plasticity after central vision loss can inform new therapies for treating low vision and has the potential to benefit millions of individuals suffering from low vision.
- Trial name
- FLAP (NCT05439759)
- Testing
- Condition 1: Training visual sensitivity, Condition 2: Training spatial integration, Condition 3: Training spatial attention
- Where
- 2 sites in United States
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- University of Alabama at Birmingham
Visual Perceptual Weakness (Disorder), Cerebral Visual Impairment
iVision - Development of a Game-based Therapy for Children With Cerebral Visual Impairment
The objective of the present study is to develop a therapeutic, adaptive, and enjoyable game that will be used by children with CVI between the mental age of 3 and 12 years.
- Trial name
- iVision (NCT04051983)
- Where
- Belgium
- Volunteers
- 50 people
- Sponsor
- Universitaire Ziekenhuizen KU Leuven
Blindness, Cataract
Prevalence of Blindness, Visual Impairment in Chao Nan Area, China
This study will provide a profile of blindness/visual impairment, avoidable blindness and cataract surgery service in Chaonan, mainland China.
- Conditions
- Blindness, Cataract, Visual Impairment, Refractive Errors
- Trial name
- NCT04143334
- Testing
- Conventional survey
- Volunteers
- 3,700 people
- Sponsor
- Chinese University of Hong Kong
Usher Syndromes
Natural History Study of Usher Syndrome ( Light4Deaf )
Clinical centres in the LIGHT4DEAF consortium have developed and will continue to improve a reliable, early molecular diagnosis and protocols for full clinical characterisation of Usher syndrome, which will be valuable for the…
- Trial name
- Light4Deaf (NCT04665726)
- Where
- 4 sites in France
- Volunteers
- 400 people
- Sponsor
- Centre Hospitalier National d'Ophtalmologie des Quinze-Vingts
Stroke, Visual Field Defect
Visual Restoration Using Focused Ultrasound Stimulation and Immersive Virtual Reality After Stroke
This research will explore if brain stimulation combined with virtual reality therapy improves visual impairment. The stimulation technique is called low-intensity focused ultrasound stimulation (LIFUS).
- Conditions
- Stroke, Visual Field Defect, Visual Field Defect Following Cerebrovascular Accident, Hemianopia
- Trial name
- LIFU-IVR (NCT06875206)
- Testing
- Low-intensity focused ultrasound, Immersive virtual reality, Inactive Low-intensity focused ultrasound
- Where
- United States
- Volunteers
- 28 people
- Sponsor
- Duke University
Severe Trophic Corneal Ulcers Refractory to Conventional Treatment, Sequelae of Previous Trophic Corneal Ulcers
Allogeneic Tissue Engineering (Nanostructured Artificial Human Cornea) in Patients With Corneal Trophic Ulcers in Advanced Stages, Refractory to Conventional (Ophthalmic) Treatment
This is a prospective, phase I-II, randomised, open-label clinical trial that will evaluate the safety and feasibility, as well as clinical efficacy evidence, of a bioengineered anterior corneal substitute in adults with severe…
- Trial name
- NCT01765244
- Testing
- Anterior lamellar nanostructured artificial human cornea., Amniotic membrane transplantation
- Where
- 11 sites in Spain
- Volunteers
- 16 people
- Sponsor
- Andalusian Initiative for Advanced Therapies - Fundación Pública Andaluza Progreso y Salud
Cerebral Visual Impairment
joyVision: The Superiority of Co-design in the Development of a Serious Game for Children With Cerebral Visual Impairment
The goal of this clinical trial is to evaluate the superiority of the through codesign redesigned game joyVision over the iVision game for children with a cognitive age between 3 and 12 with CVI.
- Trial name
- NCT07893379
- Testing
- serious game
- Volunteers
- 34 people
- Sponsor
- Universitaire Ziekenhuizen KU Leuven
Vision Impairment, Blindness
Assessment of the Validity, Reliability, and Feasibility of Two Smartphone Applications for Testing the Visual Acuity
Visual acuity (VA) is the most common measure of visual function globally. In clinical settings and during screening events, VA is an important measure to quantify changes in vision over time.
- Trial name
- NCT04936100
- Testing
- Assessment of distance and near visual acuity using "Vision Screening module" of "Easy Vision" application, Assessment of distance and near visual acuity using "Test Yourself module" of "Easy Vision" application, Assessment of distance and near visual acuity using "Peek Acuity" application
- Where
- Iran
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Shahid Beheshti University of Medical Sciences
Blindness and Low Vision
V-NAV Usability Study: End Users Trying the Vortant Indoor Navigation Tool
The study will begin with an explanatory/training session where individuals with low vision will learn to use the V-NAV (Vortant NAVigation tool) indoor navigation app, and will have the opportunity to try it for a few…
- Trial name
- NCT05647694
- Testing
- V-NAV indoor navigation prototype
- Where
- United States
- Volunteers
- 16 people
- Sponsor
- Vortant Technologies, LLC
Hemianopia
Multisensory Rehabilitation of Hemianopia
The current proposal is to generate "proof of concept" evidence that hemianopia can be successfully rehabilitated in humans when this multisensory rehabilitation paradigm is used.
- Trial name
- NCT04963075
- Testing
- multisensory rehabilitation paradigm
- Where
- United States
- Volunteers
- 5 people
- Sponsor
- Wake Forest University Health Sciences
Chronic Venous Insufficiency, CVI, Radiofrequency Ablation
Risks and Benefits of Radiofrequency Ablation for Chronic Venous Insufficiency (CEAP C3-C6) in Patients Aged 80 and Over
The prevalence of severe chronic venous insufficiency (CVI) is significant in the growing octogenarian population. While radiofrequency ablation (RFA) is a standard minimally invasive treatment, robust data on its outcomes and…
- Conditions
- Chronic Venous Insufficiency, CVI, Radiofrequency Ablation, Octogenarians(Aged 80 and Over), Cohort Study
- Trial name
- NCT07233616
- Testing
- Endovenous Radiofrequency Ablation
- Where
- China
- Volunteers
- 50 people
- Sponsor
- Chengdu University of Traditional Chinese Medicine
ROP, Jaundice, Neonatal
Hyperbilirubinemia and Retinopathy of Prematurity in Preterm Infants: a Retrospective Study.
The goal of this retrospective observational study is to [learn about the correlation between hyperbilirubinemia and retinopathy of prematurity in preterm infants.
- Conditions
- ROP, Jaundice, Neonatal, Premature, Very Low Birth Weight Infant
- Trial name
- biliROP (NCT05806684)
- Testing
- ROP
- Where
- Italy
- Volunteers
- 1,586 people
- Sponsor
- Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico
Visual Impairment, Cerebral Visual Impairment
Body Image, Identity Development, and Social Media Use Among Youth With Visual Impairment: A Single Case Intervention Study
1. Introduction This 3-week single case intervention study is funded by the Horizon Europe Research Program and is part of the VIPPSTAR project (Project 101156763 - VIPPSTAR "Visually Impaired children and adolescents: bridging…
- Conditions
- Visual Impairment, Cerebral Visual Impairment, Visual Impairments
- Trial name
- VIPPSTAR_G3KUL (NCT07741500)
- Testing
- Body image intervention
- Where
- 2 sites in Belgium
- Volunteers
- 15 people
- Sponsor
- Universitaire Ziekenhuizen KU Leuven
Wolfram Syndrome
Efficacy Study of Daily Administration of VPA in Patients Affected by Wolfram Syndrome
Open label, phase II study non randomized single group assignment of 20 evaluable patients 13 years and older, over 37,5 kg body-weight, with sensorineural hearing loss of at least 20 dB at 8 kHz in high frequency average (HFA)…
- Trial name
- AUDIOWOLF (NCT04940572)
- Testing
- Depakine
- Where
- 2 sites in France, Spain
- Volunteers
- 23 people
- Sponsor
- Centre d'Etude des Cellules Souches
Usher Syndrome, Congenital Deafness
Clinical and Genetic Testing of Patients With Usher Syndrome
This study is aimed to characterize Russian population of Usher patients.
- Conditions
- Usher Syndrome, Congenital Deafness, Retinitis Pigmentosa
- Trial name
- NCT03319524
- Where
- 6 sites in Russia
- Volunteers
- 28 people
- Sponsor
- Sensor Technology for Deafblind
Blindness
Healthy Volunteer Study of Sildenafil Effects Upon Vision
Patients sometimes report subjective visual effects when taking sildenafil. Our study set out to measure these in a controlled setting. Subjects were asked to detect patterns presented on a monitor screen.
- Trial name
- NCT00251784
- Testing
- Sildenafil
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of Cambridge
Stroke, Ischemic, Hemianopia, Homonymous
Statistical Learning as a Novel Intervention for Cortical Blindness
This project aims to develop a novel visual training paradigm for use in visually-intact participants and those sufferings from stroke-induced visual impairments.
- Conditions
- Stroke, Ischemic, Hemianopia, Homonymous, Hemianopsia, Occipital Lobe Infarct
- Trial name
- NCT06578117
- Testing
- Vision Training and Learning Task
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Rochester
Retinitis Pigmentosa
Natural History Study in Patients With PDE6A-, PDE6B- and RHO-linked Retinitis Pigmentosa
The aim of the study is to apply a novel clinical investigation protocol in patients with Phosphodiesterase 6A (PDE6A), PDE6B and Rhodopsin (RHO)-based retinitis pigmentosa.
- Trial name
- NCT06323772
- Where
- Germany
- Volunteers
- 40 people
- Sponsor
- University Hospital Tuebingen