Clinical trials: Eye Disorders
Blindness
Brain Plasticity of Verbal Memory in the Blind
This study will examine whether blind people develop changes in the brain that improve memory function. Previous studies have shown that blind people, on average, perform better in memory tasks than sighted people.
- Trial name
- NCT00059189
- Testing
- Magstim Rapid Magnetic Stimulator
- Where
- United States
- Volunteers
- 85 people, healthy volunteers welcome
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
Parkinson Disease, Visual Impairment
The Correlation of Reduction of Levodopa and Non-motor Symptoms of Parkinson's Disease After Deep Brain Stimulation
Patients with parkinson disease (PD) usually reduced the dose the levodopa after received deep brain stimulation (DBS). However, studies seldomly mentioned about the influences on non-motors systems after the reduction.
- Trial name
- NCT05901350
- Testing
- Levodopa
- Where
- China
- Volunteers
- 338 people, healthy volunteers welcome
- Sponsor
- Qilu Hospital of Shandong University
Presbyopia
Safety & Efficacy of Pilocarpine Ophthalmic Spray for Temporary Improvement of Near Vision in Presbyopic Adults
Volunteer participants are evaluated for eligibility during a Screening Visit; those meeting study inclusion/exclusion criteria are scheduled for 2 treatment visits.
- Trial name
- VISION-2 (NCT05114486)
- Testing
- Pilocarpine Ophthalmic administered with the Optejet dispenser
- Where
- 9 sites in United States
- Volunteers
- 145 people, healthy volunteers welcome
- Sponsor
- Eyenovia Inc.
Myopia, Large Language Model
Development and Validation of a Large Language Model-based Myopia Assistant System
Myopia is a rapidly growing global health concern, and there is an urgent need for advanced tools that can facilitate personalized healthcare strategies.
- Trial name
- NCT06607822
- Testing
- A patient-centered assistant system based on Large-Language Model (LLM)
- Where
- China
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University
Retinal Disease
Erythrocyte Ghost Mediated Retinal Diagnosis
Instead of the usual procedure of injecting ICG dye directly into an arm vein, now the dye can be placed inside of RBCs. When a small volume of the RBC's with the dye is injected into a person's arm, the individual RBCs can be…
- Trial name
- EGMRetinalDx (NCT02445001)
- Testing
- ICG loaded erythrocytes
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Northwell Health
Cataract
Visual Performance of Bilateral AcrySof ReSTOR Aspheric +4
Determine the clinical visual outcomes following bilateral implantation of the AcrySof ReSTOR Aspheric Intraocular Lens (IOL) and to demonstrate what percentage of the subjects obtain spectacle freedom.
- Trial name
- NCT01215045
- Testing
- AcrySof ReSTOR Aspheric +4
- Where
- United States
- Volunteers
- 17 people, healthy volunteers welcome
- Sponsor
- Alcon Research
Concussion, Convergence Insufficiency
Interventions for Convergence Insufficiency in Concussed Children
The ICONICC Study is a randomized controlled clinical trial designed to compare the proportion of successful treatment outcomes between children assigned to standard concussion care only, standard concussion care plus simple…
- Trial name
- ICONICC (NCT03908112)
- Testing
- Standard Community Concussion Care (SC), SC plus Simple Convergence Exercises (SC+), SC plus Office-based Vergence/Accommodative Therapy (SC+OBVAT)
- Where
- 8 sites in United States
- Volunteers
- 264 people, healthy volunteers welcome
- Sponsor
- Mitchell Scheiman
Refractive Error
Effects of Optical Blur on Performance and Comfort of Computer Users
The aim of this study is to examine the relationship between optical blur from poor refractive corrections (glasses) of workers using computers and their productivity and comfort in the workplace.
- Trial name
- NCT00318045
- Testing
- Eyeglass lenses
- Where
- United States
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- Vision Council of America
Glaucoma
Incidence and Progression of Glaucoma in the Tema Eye Survey Cohort
Aim 1: To determine the incidence of glaucoma in Ghana in subjects previously found to be non-glaucomatous in the Tema Eye Survey.
- Trial name
- NCT02085850
- Where
- Ghana
- Volunteers
- 1,375 people, healthy volunteers welcome
- Sponsor
- Tema Christian Eye Center
Diabete Mellitus, Diabetic Retinopathy
Multi-modal Imaging and Artificial Intelligence Diagnostic System for Multi-level Clinical Application
This study is to build an multi-modal artificial intelligence ophthalmological imaging diagnostic system covering multi-level medical institutions.
- Trial name
- NCT03899623
- Where
- China
- Volunteers
- 3,000 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Blepharoptosis, Synkinesis
Oxymetazoline Drops for Acquired Blepharoptosis From Synkinesis
After an episode of facial paralysis, as nerves recover, they aberrantly regenerate and send additional branches to the incorrect muscles in addition to the intended muscle.
- Conditions
- Blepharoptosis, Synkinesis, Hyperkinesis, Facial Paralysis
- Trial name
- NCT05945615
- Testing
- Oxymetazoline 0.1% (Pf) Oph Soln Ud, Preservative free lubricating drops
- Where
- United States
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Milton S. Hershey Medical Center
Dry Eye Syndromes
A Clinical Trial to Evaluate the Safety, Tolerability and Pharmacokinetic Characteristics of GLH8NDE After Single and Mutiple Ocular Administrations in Healthy Korean and Caucasian Volunteers
This study is a randomized, double-blind, placebo-controlled phase 1 clinical trial to evaluate the safety, tolerability and pharmacokinetic characteristics of GLH8NDE after single and multiple ocular administrations in healthy…
- Trial name
- NCT04104997
- Testing
- 5% GLH8NDE
- Where
- South Korea
- Volunteers
- 39 people, healthy volunteers welcome
- Sponsor
- GL Pharm Tech Corporation
Tinnitus
A CBT-based Internet Intervention for Adults With Tinnitus in the United Kingdom
The purpose of this study is to determine the feasibility and effectiveness of a CBT-based internet intervention for adults with tinnitus in the United Kingdom
- Trial name
- NCT02370810
- Testing
- CBT-based internet-intervention for tinnitus
- Where
- United Kingdom
- Volunteers
- 146 people, healthy volunteers welcome
- Sponsor
- Anglia Ruskin University
Cataract
Corneal Incisions With the IntraLase iFS Femtosecond Laser System
The IntraLase iFS femtosecond laser system can create corneal arcuate incisions for cataract surgery.
- Trial name
- NCT01713660
- Testing
- iFS Femtosecond Laser
- Volunteers
- 37 people, healthy volunteers welcome
- Sponsor
- Abbott Medical Optics
Soil-transmitted Helminth Infection, Onchocerciasis (River Blindness)
A Study to Learn About How Much Emodepside Gets Absorbed in the Blood and How Food Affects Its Absorption When Given as a New Type of Tablet to Healthy Participants
Onchocerciasis or river blindness is an infectious disease caused by a parasitic worm. It spreads through the bite of an infected blackfly.
- Trial name
- NCT06412926
- Testing
- BAY 44-4400
- Where
- Germany
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- Bayer
Glaucoma, Cataract
The in Vivo Effect of Medical and Surgical Glaucoma Treatments on the Schlemm's Canal Micro-structure
The purpose of our current series of studies is to evaluate different glaucoma treatments in vivo effect on the conventional outflow pathway, and specifically on the Schlemm's canal (SC) anatomy using Enhanced Depth Imaging…
- Trial name
- NCT02807935
- Testing
- Optical coherence tomography imaging
- Where
- Israel
- Volunteers
- 440 people, healthy volunteers welcome
- Sponsor
- Sheba Medical Center
Amphetamine Addiction
The Novel Addiction Assessment Study in Synthetic Drugs Addiction
The purpose of this research is to develop an objective assessment based on the virtual reality techniques which is used for evaluate addiction severity.
- Trial name
- NCT02950376
- Testing
- DSM-5 +Virtual reality-based addiction assessment system, Virtual reality-based addiction assessment system
- Where
- China
- Volunteers
- 1,500 people, healthy volunteers welcome
- Sponsor
- Shanghai Mental Health Center
Keratoconus
Topography Versus Non-Topography-Guided PRK With CXL in Keratoconus
To our knowledge, this study is one of the first to compare the visual results of non-topography-guided and topography-guided photorefractive keratectomy (PRK) applying sequential and simultaneous corneal cross-linking (CXL)…
- Trial name
- keratoconus (NCT03890718)
- Testing
- Photorefractive keratectomy in mile keratoconus
- Where
- Iran
- Volunteers
- 38 people, healthy volunteers welcome
- Sponsor
- Shahid Beheshti University
Myopia
Effects of Projected Peripheral Defocus on Ocular Biometrics
Acucela Inc. intends to develop a medical device to significantly halt or reverse myopic progression, which is a significant public health concern across the world, especially in Asian demographics.
- Trial name
- NCT04388020
- Testing
- Tabletop prototype of eSpecs: Active projection of defocused image in the peripheral visual field, Tabletop prototype of eSpecs: No Active projection of defocused image in the peripheral visual field
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Kubota Vision Inc.
Recurrent Pterygia
Amniotic Membrane Associated With Conjunctival Autograft Versus Conjunctival Autograft for Recurrent Pterygia
The purpose of this study is to compare amniotic membrane associated with conjunctival autograft versus conjunctival autograft alone in the treatment of recurrent pterygia.
- Trial name
- NCT00802620
- Testing
- Conjunctival autograft versus conjunctival autograft treatment for recurrent pterygia
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Federal University of São Paulo
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