Clinical trials: Blindness
Vision Loss Partial, Hemianopia
Effect of Visual Retraining on Visual Loss Following Visual Cortical Damage
This project is intended to collect data using standard clinical tests and psychophysics to quantify the effect of visual cortical damage on the structure of the residual visual system, visual perception, spatial awareness, and…
- Conditions
- Vision Loss Partial, Hemianopia, Hemianopia Homonymous, Quadrantanopia
- Trial name
- NCT05098236
- Testing
- Training in the Blind Field, Training in the Sighted Field
- Where
- United States
- Volunteers
- 280 people, healthy volunteers welcome
- Sponsor
- University of Rochester
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
Blindness, Cataract
Long Term Follow-Up of Diabetic Retinopathy
The efficacy of laser photocoagulation treatment for diabetic retinopathy has been demonstrated by several National Eye Institute (NEI) sponsored clinical trials.
- Conditions
- Blindness, Cataract, Diabetes Mellitus, Diabetic Retinopathy
- Trial name
- NCT00001395
- Where
- United States
- Volunteers
- 75 people
- Sponsor
- National Eye Institute (NEI)
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
Young Blind Child Melatonin Treatment Study
The primary goal of this study is to identify the presence of desynchronized circadian rhythms in 25 children by measuring melatonin secretion in serial blood or saliva samples, and to rule out any primary sleep disorders.
- Trial name
- NCT00688935
- Testing
- Melatonin
- Where
- United States
- Volunteers
- 9 people
- Sponsor
- Oregon Health and Science University
Leber Congenital Amaurosis 10, Blindness
An Open-label, Dose Escalation and Double-masked, Randomized, Controlled Trial Evaluating Safety and Tolerability of Sepofarsen in Children (<8 Years of Age) With LCA10 Caused by Mutations in the CEP290 Gene.
PQ-110-005 (BRIGHTEN) is an open-label, dose escalation and double-masked, randomized, controlled study evaluating safety and tolerability of sepofarsen administered via intravitreal (IVT) injection in pediatric subjects (<8…
- Conditions
- Leber Congenital Amaurosis 10, Blindness, Leber Congenital Amaurosis, Vision Disorders
- Trial name
- BRIGHTEN (NCT04855045)
- Testing
- sepofarsen
- Where
- 9 sites in Belgium, Brazil and 5 more
- Volunteers
- 15 people
- Sponsor
- ProQR Therapeutics
Cataract
Dynamic Light Scattering for Studying Lens Aging and Cataract Formation
This study will use dynamic light scattering (DLS) technology to study normal lens aging and early cataract formation. Cataract is a clouding of the lens that interferes with the passage of light to the retina, impairing visual…
- Trial name
- NCT00081991
- Where
- United States
- Volunteers
- 267 people, healthy volunteers welcome
- Sponsor
- National Eye Institute (NEI)
Diabetic Retinopathy, Blindness
Diabetic Retinopathy Study (DRS)
To determine whether photocoagulation helps prevent severe visual loss from proliferative diabetic retinopathy. To determine whether a difference exists in the efficacy and safety of argon versus xenon photocoagulation for…
- Trial name
- NCT00000160
- Testing
- Xenon Photocoagulation, Argon Photocoagulation, Photocoagulation
- Sponsor
- National Eye Institute (NEI)
Retinitis Pigmentosa, Usher Syndrome Type 2
Study to Evaluate the Efficacy Safety and Tolerability of QR-421a in Subjects With RP Due to Mutations in Exon 13 of the USH2A Gene With Early to Moderate Vision Loss (Celeste)
The purpose of this study is to evaluate the efficacy safety and tolerability of QR-421a administered via intravitreal injection (IVT) in subjects with Retinitis Pigmentosa (RP) due to mutations in exon 13 of the USH2A gene with…
- Conditions
- Retinitis Pigmentosa, Usher Syndrome Type 2, Deaf Blind, Retinal Disease
- Trial name
- NCT05176717
- Testing
- QR-421a
- Where
- 3 sites in United States, United Kingdom
- Volunteers
- 5 people
- Sponsor
- Laboratoires Thea
Wolfram Syndrome, Diabetes Mellitus
A Clinical Trial of Dantrolene Sodium in Pediatric and Adult Patients With Wolfram Syndrome
Wolfram syndrome is a rare genetic disorder characterized by juvenile-onset diabetes mellitus, diabetes insipidus, optic nerve atrophy, hearing loss, and neurodegeneration.
- Conditions
- Wolfram Syndrome, Diabetes Mellitus, Optic Nerve Atrophy, Ataxia
- Trial name
- NCT02829268
- Testing
- dantrolene sodium
- Where
- United States
- Volunteers
- 21 people
- Sponsor
- Washington University School of Medicine
Blindness
Pars Plana Surgical Capsulotomy for Posterior Capsular Opacification
Cataract is a leading cause of Global blindness. After cataract surgery nearly half of the people become blind due to posterior capsular opacification. The only solution for this problem is LASER capsulotomy.
- Trial name
- Capsulotomy (NCT00964613)
- Volunteers
- 176 people
- Sponsor
- Dow University of Health Sciences
Wolfram Syndrome 1, Optic Atrophies, Hereditary
Does Recessive Optic Atrophy Due to WFS1 Exist?
All patients with Wolfram syndrome and recessive optic atrophy due to a mutation of the WFS1 from a single Center were included in a retrospective study.
- Trial name
- NCT07336966
- Testing
- analyse study
- Volunteers
- 45 people
- Sponsor
- Hôpital Necker-Enfants Malades
Homonymous Hemianopia
Clinical Trial of Multi-Periscopic Prism Glasses for Hemianopia
This clinical trial will evaluate the efficacy of two types of high-power prism glasses that provide field of view expansion for patients with homonymous hemianopia (the complete loss of half the field of vision on the same side…
- Trial name
- NCT04827147
- Testing
- Multi-Periscopic Prism (MPP) glasses, Fresnel Peripheral Prism (FPP) glasses
- Where
- 8 sites in United States
- Volunteers
- 64 people
- Sponsor
- Massachusetts Eye and Ear Infirmary
Onchocerciasis (River Blindness), Schistosomiasis
Expanding Access to Preventive Chemotherapy Among Mobile and Migrant Populations
Neglected Tropical Diseases (NTDs) are among the most common groups of diseases affecting over one billion people globally and are disproportionately concentrated in remote, underserved, and marginalized communities.
- Conditions
- Onchocerciasis (River Blindness), Schistosomiasis, Soil Transmitted Helminth (STH) Infections, Lymphatic Filariasis
- Trial name
- MISSION (NCT07707817)
- Testing
- Modified Mass Administration of Medicines Strategy, Albendazole 400 mg, Praziquantel 40 mg/kg
- Where
- Nigeria
- Volunteers
- 5,760 people, healthy volunteers welcome
- Sponsor
- Uwemedimo Friday Ekpo
Cerebral Palsy, Cortical Visual Impairment
Cortical Visual Impairment and Visual Attentiveness
This study will investigate the effect of enhanced visual and cross-modal environments upon the visual attentiveness of multiply handicapped children diagnosed with Cerebral Palsy (CP) and Cortical Visual Impairment (CVI).
- Trial name
- NCT00342108
- Testing
- cross-modal sensory stimulation
- Where
- Israel
- Volunteers
- 60 people
- Sponsor
- Sheba Medical Center
Blindness, Leber Congenital Amaurosis 10
Natural History Study of CEP290-Related Retinal Degeneration
A prospective natural history study with systematic assessments and uniform follow-up to provide a high-quality dataset for assisting in the design of future clinical treatment trials involving patients with CEP290-related…
- Conditions
- Blindness, Leber Congenital Amaurosis 10, Vision Disorders, Eye Diseases
- Trial name
- NCT03396042
- Where
- 7 sites in United States, France and 2 more
- Volunteers
- 26 people
- Sponsor
- Editas Medicine, Inc.
Cataract, Healthy
Dynamic Light Scattering Device (DLS) Study of Age-Related Changes in the Lens and Cataracts
This study will use a newly developed instrument called dynamic light scattering device (DLS) to examine age-related changes in the human lens and to study the causes and development of cataracts.
- Trial name
- NCT00007215
- Where
- United States
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- National Eye Institute (NEI)
Cortical Visual Impairment
Remote Access: Cortical Visual Impairment
This study aims to compare the efficacy of an in-home telehealth-based intervention to standard care for children with cortical visual impairment and their caregivers and to assess the feasibility and acceptability of an in-home…
- Trial name
- NCT03957980
- Testing
- Occupational therapy
- Where
- United States
- Volunteers
- 21 people
- Sponsor
- Children's Hospital Medical Center, Cincinnati
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
Retinitis Pigmentosa (RP)
Retrospective Natural History Study of Retinitis Pigmentosa
This is natural history study of rods and cones degenerations in patients with Retinitis Pigmentosa (RP) caused by pathogenic mutations in RHO, PDE6A or PDE6B gene mutations.
- Trial name
- PHENOROD1 (NCT03975543)
- Where
- France
- Volunteers
- 113 people
- Sponsor
- SparingVision