Clinical trials: Vision
Progressive Keratoconus
Evaluation of Corneal Hysteresis and Corneal Resistance Factor After Corneal Cross-linking for Keratoconus
This study attempts to compare Corneal Hysteresis (CH) and Corneal Resistance Factor (CRF) in a series of keratoconic eyes before and after Corneal collagen cross-linking (CXL).
- Trial name
- NCT01411384
- Testing
- Corneal collagen cross-linking, Ocular Response Analyzer (ORA)
- Volunteers
- 80 people
- Sponsor
- Democritus University of Thrace
Myopia
Myopia Control With Simultaneous Vision Approach
To determine if the 'Defocus Incorporated Soft Contact' (DISC) lens slows myopia progression in Hong Kong schoolchildren using simultaneous vision approach.
- Trial name
- NCT00919334
- Testing
- Defocus Incorporated Soft Contact (DISC) lens
- Where
- China
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University
Optic Neuritis, Optic Neuropathy
Prospective Evaluation of the 2022 Optic Neuritis Criteria When Optic Neuritis Is Suspected
Optic neuritis is an important cause of acute or subacute visual loss. In clinical practice, optic neuritis must often be distinguished from other optic neuropathies, retinal diseases, anterior-segment or ocular media disorders…
- Conditions
- Optic Neuritis, Optic Neuropathy, Visual Loss
- Trial name
- GX-ICON (NCT07623252)
- Where
- 9 sites in China
- Volunteers
- 500 people
- Sponsor
- First Affiliated Hospital of Guangxi Medical University
Glaucoma, Congenital Cataract
Glaucoma After Congenital And Infantile Cataract Surgery
Pediatric patients who have undergone surgery for congenital or infantile cataracts have a risk of developing suspected glaucoma and glaucoma, but the current evidence does not address our understanding of the incidence and…
- Trial name
- NCT04131114
- Where
- China
- Volunteers
- 241 people
- Sponsor
- Sun Yat-sen University
Sleep Deprivation, Gut Microbiota
Microbiota Profiles in Newly Married Couples: Potential Effects on Vision, Sleep and Psychometric Parameters
Oral, fecal and conjunctival samples will be collected from participants and will be stored (at - 20 and - 80 ◦C) until further processing.
- Conditions
- Sleep Deprivation, Gut Microbiota, Optometry Examinations, Oral Microbiota
- Trial name
- NCT06638606
- Testing
- Sleep improvement techniques
- Where
- Iran
- Volunteers
- 1,740 people, healthy volunteers welcome
- Sponsor
- Reza Rastmanesh
Uveitis
Leflunomide to Treat Uveitis
This study will investigate the safety and effectiveness of the drug Leflunomide to treat uveitis-an inflammation of the eye caused by an immune system abnormality.
- Trial name
- NCT00001863
- Testing
- Leflunomide
- Where
- United States
- Volunteers
- 16 people
- Sponsor
- National Eye Institute (NEI)
Myopia
Incidence of Myopia in a Prospective Cohort of Emmetropic Children and Associated Ocular and Environmental Factors
Myopia and high myopia are among the leading causes of visual impairment and blindness worldwide. The total number of people with myopia worldwide was estimated at 2.6 billion in 2020 and could reach 4.8 billion by 2050 unless…
- Trial name
- PREMYOP (NCT07316998)
- Testing
- annual follow-up
- Where
- France
- Volunteers
- 100 people
- Sponsor
- Fondation Ophtalmologique Adolphe de Rothschild
Amblyopia
Electronic Recording of Compliance With Occlusion Therapy for Amblyopia
The purpose of this study was to determine whether compliance with occlusion therapy for amblyopia could be improved and, secondly, if risk factors for non-compliance could be identified.
- Trial name
- NCT00131729
- Testing
- Educational programme
- Where
- 2 sites in Germany, United Kingdom
- Volunteers
- 200 people
- Sponsor
- Erasmus Medical Center
Intermittent Exotropia
Symmetric vs Asymmetric BLR Recession in Management of Basic IXT With Ocular Dominance
The study aims to investigate ocular motor and sensory outcomes of two different strategies of lateral rectus recession; symmetric and asymmetric, in management of basic type intermittent exotropia with ocular dominance.
- Trial name
- IXT (NCT05234957)
- Testing
- Bilateral Lateral Rectus Recession
- Where
- Egypt
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Benha University
Ocular Graft Versus Host Disease
Evaluation of the Safety and Effectiveness of omniLenz in Patient With Ocular Graft vs Host Disease
A case series of patients presented with graft versus host disease with ocular involvement . The study recruited a total of 3 patients who were referred to cornea clinic of Farwaniya Hospital, Kuwait between April 2022 and April…
- Trial name
- NCT07066865
- Testing
- omniLenz
- Where
- Kuwait
- Volunteers
- 3 people
- Sponsor
- Farwaniya Hospital
Visual Function, Vision
Visual Function Screening System With Special Needs Children and Typical Preschoolers
The early visual screening of children plays a critical role in promoting visual development, especially for those with visual impairments.
- Conditions
- Visual Function, Vision, Special Needs Children
- Trial name
- NCT07081139
- Testing
- observational study, no interventional
- Where
- Taiwan
- Volunteers
- 1,300 people, healthy volunteers welcome
- Sponsor
- National Taiwan University Hospital
Onchocerciasis
Pediatric Pharmacokinetics And Safety Study Of Moxidectin
The purpose of this study is to measure the amount of moxidectin in subjects' blood and to measure safety. This study will enroll 36 children aged 4 to 11 years (>=12 kg) with or without Onchocerca volvulus (O volvulus)…
- Trial name
- NCT01035619
- Testing
- moxidectin
- Volunteers
- healthy volunteers welcome
- Sponsor
- Pfizer
Amblyopia
Comparison of Photorefraction With Cycloautorefraction and Cycloretinoscopy at Emam Hosein Medical Centre in 2008-2009
Screening of refractory defect is one of major reason for amblyopy. Photorefraction is a new method with some advantages in treatment of this problem.
- Trial name
- NCT00815581
- Testing
- photorefraction,cycloautorefraction,cycloretinoscopy
- Where
- Iran
- Sponsor
- Shahid Beheshti University of Medical Sciences
Eye Burns
The Role of Amniotic Membrane Transplantation in Ocular Chemical Burns
This is a randomized clinical trial study to identify the role of AMT (amniotic membrane transplantation) in treating epithelial defect, symblepharon prevention preventing corneal vascularization and opacity decreasing pain and…
- Trial name
- NCT00370812
- Testing
- amniotic membrane transplantation
- Where
- Iran
- Volunteers
- 90 people
- Sponsor
- Shahid Beheshti University of Medical Sciences
Strabismus
Bilateral Recession or Unilateral Recession-Resection as Surgery for Infantile Esotropia
Infantile esotropia is corrected in most cases by bilateral recession of the medial rectus muscles (BR) or by unilateral recession of the medial rectus muscle and resection of the lateral rectus muscle (RR).
- Trial name
- NCT00304577
- Testing
- Bilateral recession, Unilateral recession and resection
- Where
- 12 sites in Germany, Netherlands
- Volunteers
- healthy volunteers welcome
- Sponsor
- Erasmus Medical Center
Development Coordination Disorder
Active Video Games in Children With DCD
Developmental Coordination Disorder (DCD) is a condition that affects a child's ability to perform coordinated motor activities and may also impact visual perception and motor planning skills.
- Trial name
- NCT07631832
- Testing
- Active Video Game Training, Conventional Occupational Therapy
- Where
- Turkey (Türkiye)
- Volunteers
- 70 people
- Sponsor
- ZEYNEP KOLİT
Hydrocephalus
Study of Ultrasound of the Eye for Children With Suspected Shunt Failure
The purpose of the study is to determine whether an ultrasound of the eye can be used as a radiation-free alternative to X-ray to identify children with risk of shunt failure in the Emergency Department.
- Trial name
- NCT00743457
- Testing
- Ocular Ultrasound
- Where
- United States
- Volunteers
- 36 people
- Sponsor
- Oregon Health and Science University
Vision, Low, Blindness
Validation of Texture Changing Coatings for Use in At-Home Rapid Tests
At-home testing is an important part of mitigating the spread of COVID-19, but these tests are not accessible to people with low vision or blindness.
- Trial name
- NCT06539728
- Testing
- Interaction with Mock COVID-19 Rapid Antigen Test and Reference Surfaces, Biomechanical Measurements, Psychophysical Tasks
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University of Delaware
Blindness
Enhanced Tactile Memory in the Blind
This study will determine if the brain regions in blind people that would normally be involved in vision are used instead to remember touch.
- Trial name
- NCT00076700
- Where
- United States
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
Myopia, Strabismus
A Trial of Bifocals in Myopic Children With Esophoria
To test the hypothesis that correction with bifocal spectacle lenses rather than single-vision lenses will slow the progression of myopia in children with near-point esophoria.
- Conditions
- Myopia, Strabismus, Esophoria
- Trial name
- NCT00000128
- Testing
- Bifocal Spectacle Lenses
- Sponsor
- National Eye Institute (NEI)
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