Clinical trials: Myopia; Refractive Error
Myopia, Astigmatism
A Comparison of LASIK Outcomes Using Two Femtosecond Lasers
Comparing LASIK outcomes using two femtosecond lasers
- Trial name
- NCT03063164
- Testing
- Intralase IFS150, Visumax
- Where
- United States
- Volunteers
- 7 people, healthy volunteers welcome
- Sponsor
- Edward E. Manche
Myopia, Astigmatism
Compare Anterior Chamber Biometry in Healthy and Post-LASIK Patients
In this study, the investigators employed Visante-OCT (Carl Zeiss, USA), an anterior chamber optical coherence tomography, to monitor the change of anterior chamber dimensions.
- Trial name
- NCT00838734
- Where
- Taiwan
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Far Eastern Memorial Hospital
Myopia, Myopic Astigmatism
Laser In-situ Keratomileusis With Crosslinking Compared to Conventional LASIK in Patients With High Myopia
The objectives of this study are to evaluate the safety and efficacy of a treatment regimen for high myopia and myopic astigmatism: LASIK followed by crosslinking performed with the KXL Crosslinking-System and VibeX Xtra…
- Conditions
- Myopia, Myopic Astigmatism, Crosslinking, Corneal Ectasia
- Trial name
- NCT03913338
- Testing
- LasikXtra, LASIK
- Where
- Germany
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- University Clinic Frankfurt
Keratomileusis, Laser In Situ
The Role of Psychosocial and Other Quality of Life Parameters in Evaluating Functional Changes Prior to and Following Laser In-situ Keratomileusis (LASIK)Changes Laser In-situ Keratomileusis (LASIK)
To evaluate the changes in quality of life parameters after LASIK surgery.
- Trial name
- NCT00344604
- Testing
- Role of psychosocial and quality of life parameters prior to and following LASIK.
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of Texas Southwestern Medical Center
Myopia
Topical Application of Low-concentration (0.01%) Atropine on the Human Eye With Fast and Slow Myopia Progression Rate
Our project is a 24-month longitudinal randomized controlled trial that aims to investigate the myopia development after topical application of 0.01% atropine in children with either fast or slow myopia progression classified…
- Trial name
- NCT03374306
- Testing
- Atropine (0.01%), Artificial tear
- Where
- Hong Kong
- Volunteers
- 71 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University
Myopia, Refractive Error - Myopia
Minimum Power and Frequency of Repeated Low-level Red-light to Effectively Control Myopia Progression
To explore the minimum power and frequency of Repeated Low-level Red-light (RLRL) to control myopia progression in low-myopic children aged 8-10 years, and the rebound effect of low-myopic children after discontinuation of RLRL…
- Conditions
- Myopia, Refractive Error - Myopia, Choroidal Thickness, Retina
- Trial name
- NCT06717048
- Testing
- Repeated Low-level Red-light, Red LED
- Where
- China
- Volunteers
- 108 people, healthy volunteers welcome
- Sponsor
- Shanghai Eye Disease Prevention and Treatment Center
Myopia
Combination Effect of Optical Defocus and Low Dose Atropine in Myopia Control
The purpose of the study is to investigate the combination effect of optical defocus and low dose atropine on myopia control in schoolchildren.
- Trial name
- NCT06358755
- Testing
- Defocus Incorporated Multiple Segments lenses, single vision spectacle lenses, Low dose atropine
- Where
- Hong Kong
- Volunteers
- 112 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University
Myopia
Does Pupil Size Matters in Refractive Surgery?
To determine the influence of pupil size in refractive surgery. If any influence exist.
- Trial name
- NCT01678729
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Ziv Hospital
Myopia
Study of the MEL 80 Excimer Laser Using LASIK in the Treatment of Moderate to High Myopia
The purpose of this study is to determine whether the MEL 80 Excimer Laser is effective in the treatment of moderate to high myopia (nearsightedness), when used as part of the Laser In Situ Keratomileusis (LASIK) procedure.
- Trial name
- NCT00762541
- Testing
- MEL 80 Treatment of High Myopia
- Where
- 5 sites in United States
- Volunteers
- 129 people, healthy volunteers welcome
- Sponsor
- Carl Zeiss Meditec, Inc.
Myopia
Clinical Study of Approved Contact Lenses
Evaluation of Johnson \& Johnson Acuvue Vita (senofilcon C) soft contact lenses to the Bausch + Lomb Ultra (samfilcon A) soft contact lenses
- Trial name
- NCT03351101
- Testing
- Senofilcon C, Samfilcon A
- Where
- 11 sites in United States
- Volunteers
- 271 people, healthy volunteers welcome
- Sponsor
- Bausch & Lomb Incorporated
Myopia
Myopia Prevalence in Canadian School Children - a Pilot Study
The goal of this study is to determine the prevalence of nearsightedness in Canadian school children living in the Waterloo Region.
- Trial name
- Falcon (NCT01942057)
- Where
- Canada
- Volunteers
- 173 people, healthy volunteers welcome
- Sponsor
- University of Waterloo
Pathological Myopia
Genomewide Screening of Pathological Myopia
The purpose of this study is to evaluate the possible candidate gene of pathological myopia
- Trial name
- NCT00155753
- Where
- Taiwan
- Volunteers
- 600 people, healthy volunteers welcome
- Sponsor
- National Taiwan University Hospital
Myopia
Fitting Evaluation of Hydrogel and Silicone Hydrogel Sphere Design Contact Lenses
The aim of this non-dispensing fitting study is to evaluate the short term lens fit, vision performance of three monthly replacement sphere lenses.
- Trial name
- NCT03098745
- Testing
- Omafilcon A, Somofilcon A, Omafilcon A - Proclear (PC)
- Where
- Mexico
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
Myopia
Early Intervention for High Risk Premyopic Children
The purpose of this research project is to add evidence of pharmacological (0.025% atropine) and optical (Defocus Integrated Multiple Segments Triple Enhanced Design spectacle lenses ) approaches for myopia prevention among…
- Trial name
- NCT07863713
- Testing
- 0.025% atropine eye drops, DIMS TED
- Volunteers
- 240 people, healthy volunteers welcome
- Sponsor
- National Yang Ming Chiao Tung University Hospital
Myopia
A Product Performance Evaluation of a Novel Contact Lens for Daily Disposable Use
Evaluation of the clinical performance of a novel Bausch \& Lomb daily disposable contact lens when compared to the currently marketed Bausch \& Lomb SofLens® daily disposable contact lenses and the currently marketed Johnson and…
- Trial name
- NCT00784641
- Testing
- Novel Bausch & Lomb daily disposable contact lenses, Bausch & Lomb SofLens daily disposable contact lenses., Johnson and Johnson 1-Day Acuvue Moist contact lenses
- Where
- United States
- Volunteers
- 567 people, healthy volunteers welcome
- Sponsor
- Bausch & Lomb Incorporated
Myopia, Pre-myopia
A Pilot Evaluation of Refractive Error Progression in Pre-Myopic Children in Singapore With and Without Myopia Control Spectacles
This study aims to find out whether ZEISS MyoActive lenses can help prevent short-sightedness from developing in children. We aim to recruit at least 50 children in total for this study.
- Trial name
- NCT07779941
- Testing
- Zeiss MyoActive lenses, Single Vision Lenses
- Where
- Singapore
- Volunteers
- 124 people, healthy volunteers welcome
- Sponsor
- Singapore National Eye Centre
Myopia, Small-incision Lenticule Extraction (SMILE) Surgery
Factor Analysis of Unintended Initial Dissection of the Posterior Plane
To explore the potential factors for unintended initial dissection of the posterior plane in a large sample retrospective analysis and surgeons of different levels.
- Trial name
- NCT05367154
- Testing
- Small incision lenticule extraction
- Where
- China
- Volunteers
- 3,003 people, healthy volunteers welcome
- Sponsor
- Yifeng Yu
Myopia
Effects of Autostereoscopic 3D Visual Training on Binocular Vision Function of Myopes
This study intends to conduct a relatively comprehensive binocular visual function examination and follow-up on two groups of myopic subjects, one receiving autostereoscopic 3D vision training and the other receiving 2D vision…
- Trial name
- NCT06266910
- Testing
- Visual training video
- Where
- China
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Refractive Errors, Astigmatism
Study of a Hand-held Device Plus Mobile App Versus Standard Eye Care Devices in Measuring Refractive Error of the Eye
Single-center, open-label, prospective study in healthy volunteers desiring refraction for correction of visual acuity to compare a handheld device supported by a mobile application with the phoropter and autorefractor.
- Trial name
- NCT03929588
- Testing
- Hand-held device supported by a mobile application, Phoropter, Autorefractor
- Where
- United States
- Volunteers
- 230 people, healthy volunteers welcome
- Sponsor
- EyeQue Corp.
Myopia
Cambridge Anti-Myopia Trial: Accommodation Training and Aberration Control in Myopia Development
We have identified focussing problems related to myopia getting worse. Our trial uses optical and orthoptic interventions that correct the focussing problems to see if this retards myopia progression.
- Trial name
- NCT00317551
- Testing
- Aberration controlled contact lens, Vision training
- Where
- United Kingdom
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Anglia Ruskin University