Clinical trials: Eye--Refractive Errors
Glaucoma, Angle-Closure, Astigmatism
Prevalence of Corneal Astigmatism Before Glaucoma Surgery in Chinese Patients With Primary Angle-closure Glaucoma
Clear-lens extraction has been considered as first-line therapy for primary angle closure glaucoma(PACG) and application of toric intraocular lens (IOLs) leads to better postoperative visual acuity, yet little is known about the…
- Trial name
- NCT03159780
- Where
- China
- Volunteers
- 808 people
- Sponsor
- Mingkai Lin
Refractive Errors, Ametropia
Clinical Biocompatibility Evaluation of Contact Lens Coatings
The primary objective is to evaluate corneal staining observed after 2 hours of wear with contact lenses with investigational coating against PureVision™ lenses, all pre-cycled with OPTI-FREE® RepleniSH® multi-purpose…
- Trial name
- NCT03034928
- Testing
- Contact lens with investigational coating 1, Balafilcon A contact lens, OPTI-FREE® RepleniSH® MPDS
- Where
- United States
- Volunteers
- 33 people
- Sponsor
- Alcon Research
Myopia
Evaluation of Wear Experience With One Week Reusable Contact Lenses in Habitual Two Week Reusable Lens Wearers
This open-label study is of current Acuvue® Oasys® wearers (2 - week replacement, reusable lenses) who are satisfied with their current lenses.
- Trial name
- NCT06382064
- Testing
- Biweekly replacement contact lenses, One week replacement contact lenses
- Where
- United States
- Volunteers
- 71 people, healthy volunteers welcome
- Sponsor
- Ohio State University
Presbyopia
A Multi-Center, Double-Masked Evaluation of the Efficacy and Safety of CSF-1 in the Treatment of Presbyopia
This is a 4-visit, multi-center, randomized, double-masked, parallel group study evaluating the safety and efficacy of CSF-1 in the treatment of presbyopia.
- Trial name
- NCT03885011
- Testing
- CSF-1, CSF-1 Component #1, CSF-1 Component #2
- Where
- 7 sites in United States
- Volunteers
- 166 people
- Sponsor
- Orasis Pharmaceuticals Ltd.
Presbyopia
VisDura VisAbility™ Micro Insert System Pre-market Clinical Trial
The primary study objective is to evaluate the safety and effectiveness of the VisAbility™ Micro Insert System for improvement in binocular distance corrected near visual acuity in presbyopic patients.
- Trial name
- NCT07637500
- Testing
- VisAbility™ Micro Insert System
- Where
- 2 sites in Germany
- Volunteers
- 33 people
- Sponsor
- VisDura, Inc.
Refractive Error
A Non-Treatment Clinical Evaluation of the ELITA Single Piece Patient Interface for Docking Procedure With the ELITA
Open label, prospective, randomized, multicenter, measurement only feasibility study to evaluate the docking procedure using the ELITA Single Piece Patient interface in conjunction with the ELITA system
- Trial name
- NCT06727799
- Testing
- Docking Assessment / Observation
- Where
- 2 sites in United States
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Surgical Vision, Inc.
Myopia
Study Comparing Eye Growth Over Time in Children Using Two Myopia Control Lenses
The goal of this clinical trial is to investigate the short-term changes in the eye structure while wearing two types of lenslet-based myopia control lenses over a period of 6 months in children aged 6 to 13 years with myopia.
- Trial name
- NCT07253064
- Testing
- MCL 1, MCL 2
- Where
- Singapore
- Volunteers
- 20 people
- Sponsor
- Essilor International
Visual Impairment, Refractive Error
Frequency of Visual Impairment Among School Children and Effectiveness of mHealth Referral Reminder on Uptake of Referral Services
This study tested whether mobile health (mHealth) tools can affect referral uptake among schoolchildren with vision problems.Visual impairment in children often goes untreated in low- and middle-income countries, even when…
- Trial name
- NCT06616051
- Testing
- Multicomponent SMS reminder
- Where
- Pakistan
- Volunteers
- 320 people, healthy volunteers welcome
- Sponsor
- Syed Fawad Mashhadi
Refractive Errors, Ametropia
Clinical Performance of Two Commercial, Daily Disposable Contact Lenses
The purpose of this study is to compare the clinical performance of DAILIES TOTAL1 ( DT1) contact lenses with Infuse contact lenses.
- Conditions
- Refractive Errors, Ametropia, Myopia
- Trial name
- NCT05010512
- Testing
- Delefilcon A contact lenses, Kalifilcon A contact lenses
- Where
- 8 sites in United States
- Volunteers
- 112 people
- Sponsor
- Alcon Research
Myopia
A Study to Evaluate the Safety and Efficacy of MSENC1 Soft Hydrophilic Contact Lenses and Oxypure Color Soft Hydrophilic Contact Lenses
This project is an open, parallel, randomly controlled, and non-inferiority clinical trial of MSENCI soft hydrophilic contact lenses with Oxypure color soft hydrophilic contact lenses used as the control product.
- Trial name
- NCT06616519
- Testing
- BenQ Materials MSENCI soft hydrophilic contact lenses, Visco Oxypure Color soft hydrophilic contact lenses
- Where
- China
- Volunteers
- 192 people
- Sponsor
- BenQ Materials Corporation
Posterior Chamber Phakic Intraocular Lens, Vault
Study on the Diagnostic Efficacy of ICL Selection and Prediction Depth Model Based on Eye Images
To evaluate the diagnostic efficacy of deep learning network model in implantable collamer lens selection and prediction in a multicenter cross-sectional study
- Conditions
- Posterior Chamber Phakic Intraocular Lens, Vault, Deep Neural Network, Myopia
- Trial name
- NCT06669728
- Testing
- AI diagnostic algorithm
- Where
- China
- Volunteers
- 326 people, healthy volunteers welcome
- Sponsor
- Second Affiliated Hospital of Nanchang University
Cataracts, Astigmatism
Investigation of Corneal Aberrations and Visual Outcomes in Patients Implanted With an AcrySof Toric Intraocular Lens (IOL)
A prospective evaluation of postoperative corneal aberrations and visual parameters (e.g. visual acuity) in patients implanted with an AcrySof Toric IOL.
- Trial name
- NCT00878839
- Testing
- Toric
- Sponsor
- Alcon Research
Presbyopia
Functional Assessment of ADL in Patients Who Underwent Bifocal and Trifocal Presbyopic Correction
Patients who underwent bilateral bifocal or trifocal lenses implantation for presbyopia correction with monofocal intraocular lenses implantation are supposed to have sufficient uncorrected vision capacity for activities of daily…
- Trial name
- NCT03021512
- Testing
- Phaco with Restor, Phaco with Panoptix
- Where
- Greece
- Volunteers
- 80 people
- Sponsor
- Democritus University of Thrace
Myopia
A Study to Evaluate a Modified Contact Lens
This study is being conducted to evaluate the product performance of SofLens daily disposable contact lenses packaged in an investigational Test solution versus SofLens daily disposable contact lenses packaged in the currently…
- Trial name
- NCT01391364
- Testing
- SofLens in investigational solution, SofLens in currently marketed solution
- Where
- United States
- Volunteers
- 438 people
- Sponsor
- Bausch & Lomb Incorporated
Myopia
Influence of Corneal Biomechanical Properties on Myopia Control
to analyze the changes in corneal biomechanics of myopic children with different treatment (low concentration atropine eye drops and orthokeratology) and explore the possible mechanism of myopia control
- Trial name
- NCT05090592
- Testing
- orthokeratology, 0.01 atropine
- Where
- Taiwan
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Buddhist Tzu Chi General Hospital
Corneal Astigmatism
Prospective Evaluation of Limbal Relaxing Incision (LRI) in Conjunction With Phacoemulsification Surgery for Astigmatic Correction in Chinese Eyes
The main purpose of this study is to evaluate the use of limbal relaxing incision (LRI) for astigmatic correction. LRI is a procedure where a pair of incisions is made in the peripheral part of the cornea so as to alter its shape…
- Trial name
- NCT01122992
- Testing
- Limbal relaxing incision
- Where
- Singapore
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Singapore National Eye Centre
Myopia
Optical Coherence Tomography Angiography in Myopic Patients
The aim of this study is to investigate the macular microvascular network alterations in high myopic eyes using optical coherence tomography angiography.
- Trial name
- NCT04135209
- Testing
- Optical coherence tomography angiography OCTA
- Where
- Egypt
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- Minia University
Refractive Error
A PHASED, PROSPECTIVE, MULTI-CENTER STUDY OF THE ELITA SYSTEM
This study will be a 2-phase, prospective, multicenter, open-label, non-comparative, non-randomized clinical investigation to confirm the safety and effectiveness of the ELITA system.
- Trial name
- NCT05713253
- Testing
- ELITA System
- Where
- 2 sites in United States
- Volunteers
- 96 people
- Sponsor
- Johnson & Johnson Surgical Vision, Inc.
Glaucoma, Cataract
Vivity Outcomes in Patients With Early Stage Glaucoma
The goal of the study is to determine the visual outcomes in patients with mild, pre-perimetric glaucoma who undergo cataract surgery with implantation of the Alcon Vivity Extended Range Intraocular Lens (IOL).
- Conditions
- Glaucoma, Cataract, Presbyopia
- Trial name
- VIVA (NCT04670575)
- Testing
- Cataract Surgery with Implantation of Vivity Extended Range of Vision IOL
- Where
- United States
- Volunteers
- 27 people
- Sponsor
- Vance Thompson Vision
Cataract, Epiretinal Membrane
Combined 25-gauge Vitrectomy and Cataract Surgery With Toric Intraocular Lens With Idiopathic Epiretinal Membrane.
Toric intraocular lens (IOL) is now widely used for the cataract surgery with preoperative corneal astigmatism. Symptomatic epiretinal membrane (ERM) is often treated with 25-gauge transconjunctival sutureless vitrectomy…
- Conditions
- Cataract, Epiretinal Membrane, Corneal Astigmatism
- Trial name
- NCT02328157
- Testing
- Vitrectomy with cataract surgery and toric IOL, Vitrectomy with cataract surgery and common IOL
- Where
- Japan
- Volunteers
- 30 people
- Sponsor
- Kagawa University
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