Clinical trials: Visual Perception
Diagnositic Efficacy of Deep Convolutional Neural Network in Differentiation of Glaucoma Visual Field From Non-glaucoma Visual Field
Diagnostic Efficacy of CNN in Differentiation of Visual Field
Glaucoma is currently the leading cause of irreversible blindness in the world. The multi-center study is designed to evaluate the efficacy of the convolutional neural network based algorithm in differentiation of glaucomatous…
- Trial name
- NCT03759483
- Testing
- AI diagnostic algorithm
- Where
- China
- Volunteers
- 437 people, healthy volunteers welcome
- Sponsor
- Sun Yat-sen University
Cataract
Long Term Outcomes of Vivity Intra Ocular Lens(IOL) Versus Control
Evaluate the long-term (>1 yr) outcomes of the Vivity IOL. The investigator will use similar measurements and procedures to the ones performed on these subjects during the FDA clinical trial.
- Trial name
- REVIVE (NCT04561570)
- Testing
- Vivity ACRYSOF IQ IOL Group, ACRYSOF IQ IOL Control Group
- Where
- United States
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- John Berdahl, MD
Myopia, Hyperopia
Evaluation of Effectiveness of Correcting Refractive Error With Ready-made Spectacles
This research project will compare two methods of correcting refractive error (long or short-sightedness) with spectacle lenses.
- Conditions
- Myopia, Hyperopia, Astigmatism
- Trial name
- RECS (NCT00657670)
- Testing
- Ready-made spectacles, Spectacles
- Where
- 2 sites in China, India
- Volunteers
- 800 people, healthy volunteers welcome
- Sponsor
- Johns Hopkins University
Efficacy, Self, Safety Issues
I Can sEe Left Atrial Appendage (ICELAA) Clinical Study
The primary objective of this study is to assess the efficacy and safety of using intra-procedural intracardiac echocardiography (ICE) for WATCHMAN FLX Device implants in subjects with non-valvular atrial fibrillation to reduce…
- Trial name
- ICELAA (NCT04196335)
- Testing
- intra-procedural intracardiac echocardiography
- Where
- 7 sites in Denmark, Italy and 2 more
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Boston Scientific Corporation
Myopia, Prevention and Control
Effectiveness of Digital Defocus Vision Training With Low-Concentration Atropine on the Prevention and Control of Myopia in Children: A Clinical Study
Based on existing theories of myopia development and progression, our preliminary work has leveraged the features of virtual reality (VR) technology to digitally simulate myopic defocus signals through image-based emulation.
- Trial name
- NCT07724210
- Testing
- For the experimental group,Virtual reality-based digital defocus training combined with 0.02% atropine eye drops, For the control group, one drop of 0.02% atropine eye drops was instilled into each eye at bedtime daily, combined with full-time wear of fully corrected multi-zone positive optical defocus (DIMS) spe
- Where
- China
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Beijing Tongren Hospital
Post Laser Vision Correction Pain and Discomfort
Laser Vision Correction Use of an Eye Shield for Maintaining Vision and Mitigating Pain
The purpose of this research is to determine if an investigational thin shield can effectively reduce discomfort following Laser Vision Correction.
- Trial name
- NCT01675375
- Testing
- Eye Shield
- Where
- 5 sites in United States
- Volunteers
- 125 people, healthy volunteers welcome
- Sponsor
- FORSIGHT Vision3
Cataract, Presbyopia
Comparison of Two Different Optical Biometric Systems
Primary objective of this study is to evaluate and compare the measurements of two different optical biometrics systems in patients who will undergo cataract surgery or presbyopia surgery using intraocular lenses (IOL-PC).
- Conditions
- Cataract, Presbyopia, Ocular Biometry, Intraocular Lens
- Trial name
- NCT05411341
- Testing
- Argos (Alcon Laboratories, Inc.), IOLMaster 500 (Carl Zeiss Meditec AG)
- Where
- Greece
- Volunteers
- 133 people, healthy volunteers welcome
- Sponsor
- Democritus University of Thrace
Dry Eye Syndromes
ACCURATE Study for Subjects With Dry Eyes
To determine treatment and imaging outcomes in bilateral ocular surface disease management with an intracanalicular dexamethasone (0.4 mg) insert compared to standard topical over-the-counter artificial tears lubrication…
- Trial name
- ACCURATE (NCT04237012)
- Testing
- Dextenza 0.4Mg Intracanalicular Insert, Over the counter Artificial tears
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- The Eye Centers of Racine and Kenosha
Hyperopia
Hyperopia Correction Using the NTK Optimal Keratoplasty (Opti-K) System
The purpose of this U.S. Clinical Trial on treatment of sighted eyes is to investigate the safety and effectiveness of optimal keratoplasty (Opti-K™) treatments for hyperopia correction using the NTK Enterprises (NTK) Opti-K…
- Trial name
- NCT01028937
- Testing
- Optimal Keratoplasty
- Where
- United States
- Volunteers
- 6 people, healthy volunteers welcome
- Sponsor
- NTK Enterprises, Inc.
To See the Safety and Efficacy of the Topical Latanoprost Compared With Topical Brimonidine in the Treatment of the Primary Open Angle Glaucoma Patients
The Effectiveness of Topical Latanoprost Compared With Topical Brimonidine in the Treatment of the Primary Open Angle Glaucoma
Outpatient department of cmch, ceitc,cimch POAG patients enrolled for the study.
- Trial name
- NCT04205201
- Testing
- Drugs, Investigational
- Where
- 2 sites in Bangladesh
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Chittagong Medical College
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
Myopia, Maculopathy
Optical Coherence Tomography Imaging of the Posterior Segment in High Myopia.
The prevalence of myopia in East Asia and Singapore in particular is amongst the highest in the world, with estimates ranging from 30-70% of the general population. Up to 30% of these are high myopes.
- Conditions
- Myopia, Maculopathy, Glaucoma
- Trial name
- NCT00347451
- Where
- Singapore
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Singapore National Eye Centre
Near Vision, Refractive Error Correction
Clinical Outcomes of the Use of a Femtosecond Laser Treatment in a Patient With Implanted Monofocal IOLs
This study aims to assess the safety and efficacy of evaluating near vision or refractive error in eyes implanted with a mono focal intraocular lens (IOL) using a low-energy femtosecond laser.
- Trial name
- NCT07447622
- Testing
- Device
- Where
- Czechia
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Perfect Lens, LLC
Traumatic Brain Injury (TBI) Patients, Severe Traumatic Brain Injury
SeeMe: Using Automated Facial Tracking to Detect Voluntary Behavior in Brain Injury
Objective: This prospective interventional study introduces "SeeMe," an automated, high-resolution computer vision platform designed to objectively quantify microscopic, auditory command-evoked movements in patients with…
- Trial name
- NCT07560631
- Testing
- SeeMe Multimodal Auditory Command Protocol
- Where
- United States
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Stony Brook University
Glaucoma
Blood Flow Regulation in Glaucoma
Glaucoma is one of the leading causes for blindness in industrialized countries. It is characterized by a progressive loss of retinal ganglion cells, morphological changes in the optic nerve head and a characteristic loss of…
- Trial name
- NCT02292381
- Testing
- Isometric exercise
- Where
- Austria
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Measurement of the Elasticity of the Anterior Eye Segment
A Pilot Study to Test the Safety and Feasibility of a Brillouin Ocular Analyzer
A Brillouin ocular analyzer uses a low-power near infrared laser light to probe the viscoelastic properties of the cornea and crystalline lens in the eye.
- Trial name
- Brillouin I (NCT01775007)
- Testing
- Brillouin Ocular Analyser
- Where
- 2 sites in United States
- Volunteers
- 31 people, healthy volunteers welcome
- Sponsor
- Massachusetts General Hospital
Glaucoma
Ahmed Glaucoma Valve Implantation; Graft-Free Short Tunnel Small Flap Versus Scleral Patch Graft
Glaucoma implants have been used for refractory glaucoma and are gaining popularity as a primary procedure in selected patients.
- Trial name
- NCT03551834
- Testing
- Conventional scleral patch graft glaucoma implantation, New surgical method (short tunnel small flap technique)
- Where
- Iran
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Shahid Beheshti University of Medical Sciences
Glaucoma
Comparing Conscious Sedation to Retrobulbar Block Anesthetics During Trans-scleral Diode Laser
This is a non-inferiority trial with a prospective randomized controlled design assessing patient satisfaction and complications associated with both retrobulbar block anesthetics (current gold standard) and conscious IV sedation…
- Trial name
- NCT03646500
- Testing
- Retrobulbar Block, Remifentanil
- Where
- Canada
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Queen's University
Dry Eye, MGD-Meibomian Gland Dysfunction
Study on Prevention and Treatment of Dry Eye in Patients Using Glaucoma Drops
A multicenter randomized controlled trial on prevention and treatment of ocular surface injury and meibomian gland dysfunction in patients using anti-glaucoma eye drops.
- Trial name
- NCT03515187
- Testing
- 0.3% sodium hyaluronate ophthalmic solution, 0.1% sodium bromide solution, Meibomian gland massage
- Where
- China
- Volunteers
- 160 people, healthy volunteers welcome
- Sponsor
- Shenzhen Hospital of Southern Medical University
Blindness
Sensory Substitution and Brain Plasticity Following Vision Loss
The goal of this clinical investigation is to learn how the brain responds when visual information is converted into patterns of sound or touch in blind and sighted participants.
- Trial name
- SenSubMRI (NCT07450677)
- Testing
- Electrotactile display (BrainPort), Vision-to-sound converter (AI Sight)
- Where
- 2 sites in United States
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Stanford University