Clinical trials: Ophthalmopathy
Biotin Deficiency, Optic Neuropathy
BIOtinidase Test In Optic-Neuropathy
Biotinidase is an enzyme that recycles biotin, a water-soluble vitamin essential as a coenzyme for four carboxylases that are involved in gluconeogenesis, fatty acid synthesis, and in the catabolism of several branch-chain amino…
- Trial name
- BIOTIN (NCT03268681)
- Where
- France
- Volunteers
- 12 people
- Sponsor
- Fondation Ophtalmologique Adolphe de Rothschild
Fraser Syndrome, Fryns Syndrome
Genetic Analysis of Fraser Syndrome and Fryns Syndrome
This study will examine blood or other tissue samples from patients with Fraser syndrome and patients with Fryns syndrome to try to identify the gene responsible for these diseases.
- Conditions
- Fraser Syndrome, Fryns Syndrome, Chromosomal Abnormalities, Abnormalities, Multiple
- Trial name
- NCT00032877
- Where
- United States
- Volunteers
- 400 people
- Sponsor
- National Human Genome Research Institute (NHGRI)
Trachoma
Nepal Elimination of Trachoma Study
The main purpose of this study is to determine if ocular Chlamydia trachomatis infection can be eliminated in communities in Nepal following mass antibiotic distributions with azithromycin.
- Trial name
- NETS (NCT02176057)
- Testing
- Azithromycin
- Where
- Nepal
- Sponsor
- University of California, San Francisco
Strabismus, Surgery
Povidone-iodine Antisepsis for Strabismus Surgery
The purpose of this study is to compare the efficacy of 5 % vs. 1.25 % povidone-iodine (PI) as preoperative antiseptic prior to strabismus surgery in children as a prophylaxis of endophthalmitis.
- Conditions
- Strabismus, Surgery, Endophthalmitis
- Trial name
- PASS (NCT00461656)
- Testing
- Preoperative conjunctival irrigation with 5% or 1.25% PI
- Where
- 9 sites in Germany, Netherlands
- Volunteers
- 70 people
- Sponsor
- Erasmus Medical Center
Neurofibromatosis Type 1, Malignant Peripheral Nerve Sheath Tumor
Natural History Study of Patients With Neurofibromatosis Type I
Background: Neurofibromatosis Type 1 (NF1) is a genetic disorder in which patients are at increased risk of developing tumors (usually non-cancerous) of the central and peripheral nervous system.
- Conditions
- Neurofibromatosis Type 1, Malignant Peripheral Nerve Sheath Tumor, Plexiform Neurofibroma, Optic Glioma
- Trial name
- NCT00924196
- Where
- United States
- Volunteers
- 259 people
- Sponsor
- National Cancer Institute (NCI)
Myopia
Peripheral Optics in Myopia and Orthokeratology
The primary objective of the current study is to investigate changes in peripheral refraction and aberration in children wearing orthokeratology lenses and single-vision spectacles.
- Trial name
- NCT00978679
- Testing
- Orthokeratology lenses, Spectacles
- Where
- China
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University
Macular Degeneration, Neovascularization, Pathologic
Branch Vein Occlusion Study
To determine whether scatter argon laser photocoagulation can prevent the development of neovascularization. To determine whether peripheral scatter argon laser photocoagulation can prevent vitreous hemorrhage.
- Conditions
- Macular Degeneration, Neovascularization, Pathologic, Vitreous Hemorrhage
- Trial name
- NCT00000162
- Testing
- Macular Argon Laser Photocoagulation, Peripheral Scatter Argon Laser Photocoagulation, Scatter Argon Laser Photocoagulation
- Sponsor
- National Eye Institute (NEI)
Glaucoma
Benchmarking Management of Glaucoma Using the Diopsys VEP/PERG Protocols.
Establish electrophysiological benchmarks, using the Diopsys Visual Evoked Potential/ Pattern ERG (VEP/PERG) protocols of populations with Glaucoma following: 1) Baseline VEP/ERG prior to treatment; and 2) VEP/PERG after…
- Trial name
- NCT02594280
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Diopsys, Inc.
Hemianopia, Homonymous, Tunnel Vision
Feasibility Tests for Various Prism Configurations for Visual Field Loss
The investigators will develop and test different configurations of high-power prisms to expand the field of vision of patients with visual field loss to assist them with obstacle detection when walking.
- Conditions
- Hemianopia, Homonymous, Tunnel Vision, Visual Field Defect, Peripheral, Visual Field Constriction Bilateral
- Trial name
- NCT04424979
- Testing
- High power prisms
- Where
- United States
- Volunteers
- 10 people
- Sponsor
- Massachusetts Eye and Ear Infirmary
Meibomian Gland Dysfunction
Meibography and Tear Scan Using the Oculus Keratograph 4
The purpose of this study is to look at both the meibomian glands and the tear film using a new clinical instrument marketed in Canada which was recently acquired by the Centre for Contact Lens Research.
- Trial name
- KITCHENER (NCT01382108)
- Where
- Canada
- Volunteers
- 39 people, healthy volunteers welcome
- Sponsor
- University of Waterloo
Open-angle Glaucoma (OAG)
5-Year Postoperative Outcomes of Patients Who Completed the CREST Study
This study is designed to collect clinical data at 3, 4, and 5 years postoperatively for participants who completed the CREST Study without having secondary IOP-lowering surgery in the study eye(s).
- Trial name
- CREST-XT (NCT07480343)
- Testing
- CycloPen Micro-Interventional Cyclodialysis System, CycloPen Micro-Interventional Cyclodialysis System Post Cataract
- Where
- 10 sites in United States
- Volunteers
- 250 people
- Sponsor
- Iantrek, Inc.
Refractive Errors, Myopia
Customizing Myopia Control With Multifocal Toric Contact Lens
This study will evaluate the ability of toric multifocal contact lens to reduce the change of myopia progression in children (aged 8-12) with myopic astigmatism.
- Trial name
- NCT04352868
- Testing
- Intelliwave multifocal, toric, soft contact lens, Intelliwave toric, soft contact lens
- Sponsor
- University of Alabama at Birmingham
CHARGE Syndrome
A Strategic Approach to Safe and Effective Cochlear Implantation in Patients With CHARGE Syndrome
This retrospective observational study aims to evaluate cochlear anatomy, surgical challenges, and strategic approaches for safe cochlear implantation in pediatric patients with CHARGE syndrome.
- Trial name
- NCT07320482
- Testing
- No intervention (observational study)
- Where
- South Korea
- Volunteers
- 12 people
- Sponsor
- Seoul National University Bundang Hospital
Eye Diseases
Screening for Research Participants
This study will allow National Eye Institute (NEI) doctors the opportunity to examine people with eye disease, whether the diagnosis is known or not, to determine if they are eligible for other NEI research studies.
- Trial name
- NCT00655096
- Where
- United States
- Volunteers
- 10,000 people, healthy volunteers welcome
- Sponsor
- National Eye Institute (NEI)
Congenital Glaucoma
Study Aim to Compare the Effect of Different Technique of Airway Managment During Anaesthesia on the Haemodynamics and Intraocular Pressure. Patients Were Divided Into Three Groups of 25 Patients Each. (Group A); Patients Who Were Subjected to LMA Insertion (Group B ).
this study aim to compare the effect of different technique of airway managment during anaesthesia on the haemodynamics and intraocular pressure in pediatric patient undergoing congenital glaucoma surgery.
- Trial name
- Airway and IOP (NCT07504315)
- Testing
- laryngeal mask insertion, I gel mask insertion, Endotracheal tube insertion
- Volunteers
- 75 people
- Sponsor
- Sohag University
Myopia
The Immediate Effect of Defocus Spectacles On the Choroid Thickness Using Optical Coherence Tomography on Children
The purpose is to examine temporary changes in the subfoveal choroid thickness after removal and after resumed use of Defocus Incorporated Multiple Segment Spectacle Lenses (DIMS).
- Trial name
- TIDOCT (NCT06234189)
- Testing
- Defocus Incorporated Multiple Segment Spectacle Lenses (DIMS)
- Where
- Denmark
- Volunteers
- 16 people
- Sponsor
- Vejle Hospital
Cytomegalovirus Retinitis, HIV Infections
A Phase II Dose-Ranging, Open-Labelled Trial of Foscarnet Salvage Therapy for AIDS Patients With Sight-Threatening CMV Retinitis Who Cannot Be Treated With Ganciclovir Due To Myelosuppression or Treatment Failure
To examine the usefulness and safety of the antiviral drug foscarnet in treating AIDS patients with cytomegalovirus (CMV) infection that is causing sight-threatening inflammation of the retina in one or both eyes (CMV retinitis).
- Trial name
- NCT00000691
- Testing
- Foscarnet sodium
- Where
- 11 sites in United States
- Volunteers
- 156 people
- Sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
Amblyopia
Dichoptic Treatment for Amblyopia in Children 8 to 12 Years of Age
Participants eligible for the study will be randomly allocated (1:1:1) to receive either Luminopia dichoptic treatment while wearing optical correction if needed, Vivid Vision dichoptic treatment while wearing optical correction…
- Trial name
- ATS24 (NCT06524882)
- Testing
- Vivid Vision, Luminopia, Optical Correction
- Where
- 58 sites in United States
- Volunteers
- 252 people
- Sponsor
- Jaeb Center for Health Research
Amblyopia
Full-time Bangerter Filters Versus Part-time Daily Patching for Moderate Amblyopia in Children
This study is a randomized clinical trial designed to evaluate the non-inferiority of Bangerter filters compared to 2 hours of daily patching as a primary treatment for moderate amblyopia (20/40 to 20/80) in children ages 3 to <…
- Trial name
- ATS10 (NCT00525174)
- Testing
- Bangerter filters, Patching, Near activities
- Where
- United States
- Volunteers
- 186 people
- Sponsor
- Jaeb Center for Health Research
Brain and Central Nervous System Tumors, Lymphoma
Imetelstat Sodium in Treating Young Patients With Refractory or Recurrent Solid Tumors or Lymphoma
RATIONALE: Imetelstat sodium may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. PURPOSE: This phase I clinical trial is studying the side effects and best dose of imetelstat sodium in…
- Conditions
- Brain and Central Nervous System Tumors, Lymphoma, Lymphoproliferative Disorder, Small Intestine Cancer
- Trial name
- NCT01273090
- Testing
- imetelstat sodium, laboratory biomarker analysis, pharmacological study
- Where
- 23 sites in United States, Canada
- Volunteers
- 34 people
- Sponsor
- Children's Oncology Group
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