Clinical trials: Short-Sighted
Soft Contact Lens
Soft Peripheral Contact Lens for Eye Elongation Control (SPACE):1-year Results of a Double-blinded Randomized Con-trolled Trial
A prospective, randomised, double-blinded clinical trial was conducted including 115 children (55 male and 60 female) aged 8 to 15 years.
- Trial name
- NCT05733884
- Testing
- soft contact lens
- Where
- Taiwan
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Chung Shan Medical University
Refractive Errors
Clinical Evaluation of Acuity 200 (Fluoroxyfocon A) RGP Contact Lens
The objective of this clinical investigation is to collect valid scientific safety and effectiveness data on the Acuity 200 (fluoroxyfocon A) Rigid Gas Permeable Contact Lens, manufactured from a newly developed rigid gas…
- Trial name
- Acuity 200 (NCT03971227)
- Testing
- Acuity 200 (Fluoroxyfocon A) contact lens, Acuity 100 (Hexafocon A) contact lens
- Where
- 3 sites in United States
- Volunteers
- 74 people, healthy volunteers welcome
- Sponsor
- Acuity Polymers, Inc.
Myopia, Hyperopia
Corneal Epithelial Thickness Mapping by Anterior Segment Optical Coherence Tomography in Patients With Refractive Errors
This study evaluates corneal epithelial thickness using anterior segment optical coherence tomography (AS-OCT) in patients with refractive errors.
- Conditions
- Myopia, Hyperopia, Astigmatism, Emmetropia
- Trial name
- NCT07647146
- Where
- Egypt
- Volunteers
- 360 people, healthy volunteers welcome
- Sponsor
- Sohag University
Juvenile Myopia, Myopia
Assessment of DOT Spectacles in Chinese Children
This is a randomized, controlled, evaluator-blinded, multicenter, two-arm parallel group clinical trial to evaluate the continued safety and efficacy of Diffusion Optics Technology (DOT) spectacle lenses by comparing to single…
- Trial name
- CATHAY (NCT05562622)
- Testing
- Novel spectacle lens design, Spectacle lenses
- Where
- 5 sites in China
- Volunteers
- 195 people, healthy volunteers welcome
- Sponsor
- SightGlass Vision, Inc.
Children With Myopia, Treatment
Clinical Study on the Effectiveness of Diverse Segments Defocus Optimization in Spectacle Lenses for Slowing Myopia Progression
Clinical Trial The goal of this clinical trial is to evaluate the effectiveness of two types of Diverse Segments Defocus Optimization (D.S.D.O.) spectacle lenses in slowing myopia progression in children.
- Conditions
- Children With Myopia, Treatment, Multizone Lens Design for Myopic Defocus, Visual Quality
- Trial name
- NCT07323251
- Testing
- Diverse Segments Defocus Optimization (D.S.D.O.) spectacle lenses
- Where
- China
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Beijing Tongren Hospital
Myopia
A 3-year Cross-sectional Assessment of the Tianjin Child and Adolescent Large-scale Eye Study
This is a school-based, cross-sectional study to assess the incidence and prevalence, risk factors of myopia among schoolchildren in both eye-use environment, eye-use habits, lifestyle, and family and subjective factors before…
- Trial name
- NCT05967702
- Where
- China
- Volunteers
- 126,810 people, healthy volunteers welcome
- Sponsor
- Tianjin Eye Hospital
Myopic LASIK Candidates With Spherical Equivalent up to - 10 Diopters
Thin-Flap Laser in Situ Keratomileusis Associated Dry Eye
Laser in situ keratomileusis (LASIK) eye surgery continues to be the most common refractive procedure used to correct different forms of ametropia.
- Trial name
- NCT04831177
- Testing
- Laser in situ keratomileusis
- Where
- Egypt
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- Assiut University
Myopia
Comparing Silicone Hydrogel Contact Lens Wearers to Hydrogel Contact Lens Wearers and Non-lens Wearers
This study was a multi-site, prospective, randomized, non-masked, unilateral, non-dispensing study.
- Trial name
- NCT04886479
- Testing
- Control, Test Lens
- Where
- 2 sites in Canada, United Kingdom
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
Myopia, Safety Issues
The Safety and Effectiveness of Breath-O Lenses
In Hong Kong, approximately 80% of children are myopic by the end of childhood. There is intense interest currently in the potential role of peripheral defocus as a clinical treatment to slow myopia progression.
- Trial name
- NCT03616600
- Testing
- Breath-O-Correct Lens
- Where
- Hong Kong
- Volunteers
- 31 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University
Myopia
Effect of Using Myopia Prediction Algorithm on Myopia School-aged Children
In this study, the investigators aim to perform a prospective, randomized controlled study to compare the myopia development between myopia children using myopia prediction algorithm and myopia children without using myopia…
- Trial name
- NCT04045951
- Testing
- Myopia prediction algorithm
- Where
- China
- Volunteers
- 2,138 people, healthy volunteers welcome
- Sponsor
- Sun Yat-sen University
Myopia
A Prospective Evaluation of Contrast Sensitivity and Disability Glare in Refractive Surgery, a Sub-Study of: Initial Evaluation of Excimer Laser Keratorefractive Surgery in U.S. Army Personnel (WU # 2335-99)
The purpose of this study is to conduct a prospective assessment of small target contrast sensitivity and disability glare in refractive surgery.
- Trial name
- NCT00413868
- Testing
- LASIK, PRK, Small target contrast sensitivity and disability glare
- Where
- United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Walter Reed Army Medical Center
Myopia
Performance of DAILIES TOTAL1 Daily Disposable Contact Lenses in Habitual Soft Lens Wearers Who Report Substantial Digital Device Use
The purpose of this study is to evaluate the performance of DAILIES TOTAL1 daily disposable contact lenses with regards to subjective symptoms (comfort, dryness, vision) in lens wearers who use identify themselves as substantial…
- Trial name
- FOX (NCT06308666)
- Testing
- Delefilcon A contact lenses
- Where
- Canada
- Volunteers
- 41 people, healthy volunteers welcome
- Sponsor
- University of Waterloo
Myopia
Impact of Ultraviolet Radiation and Environmental Factors on Human Ocular Biomechanics
This observational study aims to explore whether ultraviolet (UV) radiation and other environmental factors are associated with ocular biomechanical properties in healthy volunteers aged 18-44 years without ocular diseases…
- Trial name
- NCT06993077
- Testing
- environment Exposure
- Where
- China
- Volunteers
- 3,000 people, healthy volunteers welcome
- Sponsor
- Tianjin Eye Hospital
Myopia, Astigmatism
Correction of Myopia Wtih or Without Astigmatism Using the VisuMax™ Femtosecond Laser
The objective of this clinical trial is to evaluate the safety and effectiveness of the Carl Zeiss Meditec VisuMax™ Femtosecond Laser lenticule removal procedure for the reduction or elimination of myopia from ≥ -1.00 D to ≤…
- Trial name
- NCT02430428
- Testing
- Carl Zeiss Meditec VisuMax Femtosecond Laser
- Where
- 5 sites in United States
- Volunteers
- 357 people, healthy volunteers welcome
- Sponsor
- Carl Zeiss Meditec, Inc.
Myopia
To Evaluate the Effectiveness of New Specially Designed Fitlens Soft Lens.
Myopia is a common disorder, affecting approximately one-third of the US population and over 90% of the population in some East Asian countries.
- Trial name
- NCT05433792
- Testing
- Myolens CN (Central-Near) soft contact lens, MiSight® soft contact lens
- Where
- Israel
- Volunteers
- 66 people, healthy volunteers welcome
- Sponsor
- Fitlens Ltd.
Myopia
Corneal WFG Versus AF Trans PRK in Myopic Patients With High Corneal HOA
compare the efficacy, safety and predictability of corneal wavefront guided (WFG) and aberration free ablation in single-step transepithelial photorefractive keratectomy (TransPRK) in myopic patients with high pre-existing…
- Trial name
- NCT03786861
- Testing
- corneal WFG group, aberration free group
- Volunteers
- 33 people, healthy volunteers welcome
- Sponsor
- Menoufia University
Myopia, Moderate
To Compare the Clinical Outcomes of FemtoLASIK and ICL Implantation in Treating Moderate Myopia Focusing on Refractive Stability, Contrast Sensitivity and High Order Aberrations.
Compare the clinical outcomes of FemtoLASIK and ICL implantation in treating moderate myopia.
- Trial name
- NCT07291986
- Testing
- FemtoLASIK, ICL implantation
- Where
- Egypt
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Walid Osama Abdel Rahman Nour El Din
Myopia
Changes in Eye Shape With Myopia Management Interventions
The goal of this clinical trial is to study changes in eye shape of nearsighted young adults using low-dose atropine eye drops or soft multifocal contact lenses.
- Trial name
- NCT06450132
- Testing
- Atropine Ophthalmic, MiSight 1-day disposable contact lenses
- Where
- United States
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- Ohio State University
Myopia
Echothiophate Iodide for the Prevention of Progression of Myopia
The purpose of this study is to test the hypothesis that myopia progression can be slowed or prevented by low dose Echothiophate Iodide.
- Trial name
- NCT02544529
- Testing
- Echothiophate Iodide 0.03% Ophthalmic Solution, Carboxymethylcellulose Sodium (0.5%)
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Danbury Eye Physicians & Surgeons, PC
Nearsightedness, Farsightedness
An Evaluation of LASIK, SMILE and PRK Surgery in Physicians
The principle investigator is evaluating self-reported quality of vision and quality of life in physicians undergoing LASIK, SMILE and PRK surgery.
- Conditions
- Nearsightedness, Farsightedness, Astigmatism
- Trial name
- NCT02576483
- Testing
- Questionnaire (QoV questionnaire)
- Where
- United States
- Volunteers
- 700 people, healthy volunteers welcome
- Sponsor
- Stanford University