Clinical trials: Ametropia
Refractive Ametropia, Hyperopia
Air Optix Night and Day Aqua (AONDA) Retrospective Study 1
The purpose of this study is to assess long term performance and safety of AONDA in a real world setting when worn as daily wear or continuous wear for vision correction.
- Conditions
- Refractive Ametropia, Hyperopia, Myopia
- Trial name
- NCT05790928
- Testing
- Lotrafilcon A spherical contact lenses
- Where
- 4 sites in United States
- Volunteers
- 108 people
- Sponsor
- Alcon Research
Dry Eye, Ametropia
Osmoprotective Containing Lubricants in Dysfunctional Tear Syndrome and Post Refractive Surgery Patients
The purpose of this project is to determine the effectiveness of an eyewash osmoprotective lubricant comparing to castor oil containing and non-osmoprotective lubricants in different types of DTS and post refractive surgery…
- Trial name
- NCT01741987
- Testing
- Optive ®, Fresh Tears ®
- Where
- Brazil
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Federal University of São Paulo
Ametropia
One-month Clinical Evaluation of Silicone Hydrogel Definitive 65 HPT Contact Lenses
Comparison of different contact lens materials.
- Trial name
- NCT02312323
- Testing
- Definitive 65 HPT contact lenses, Definitive 65 contact lenses
- Where
- 2 sites in Germany
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- Contamac Ltd
Refractive Errors
Academic Performance and Refractive Error
Refractive errors constitute the leading cause of visual disability worldwide and that myopia progresses dramatically when students reach school age.
- Trial name
- NCT04338880
- Where
- China
- Volunteers
- 10,000 people
- Sponsor
- Sun Yat-sen University
Myopia, Refractive Ametropia
The Impact of 'A Miss Is as Good as a Mile': Is Compensation Necessary for Minimal Ocular Deviation in Myopic Laser Surgery?
The goal of this clinical trial is to evaluate the effect of intraoperative kappa-angle compensation on postoperative visual quality in patients undergoing small incision lenticule extraction (SMILE) using the VisuMax 800…
- Trial name
- NCT07512115
- Testing
- Apply compensation to the Kappa angle., Apply no compensation to the Kappa angle
- Where
- China
- Volunteers
- 224 people
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Ametropia, Myopia
Clinical Investigation of Proclear® 1 Day and MyDay® Sphere Contact Lenses
The aim of this study is to evaluate and compare the performance of two soft contact lenses.
- Trial name
- NCT07104773
- Testing
- Control Lens (omafilcon A), Test Lens (stenfilcon A)
- Where
- Canada
- Volunteers
- 44 people
- Sponsor
- CooperVision International Limited (CVIL)
Myopia, Refractive Ametropia
Comparison of Two Rotational Alignment Methods for Astigmatism Correction in SMILE Surgery
Small incision lenticule extraction (SMILE) is a commonly used corneal refractive procedure for correcting myopia and myopic astigmatism.
- Trial name
- NCT07696468
- Testing
- Device-assisted cyclotorsion control during SMILE, Manual limbal marking-guided cyclotorsion adjustment during SMILE
- Where
- China
- Volunteers
- 52 people
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Refractive Ametropia, Myopia
Comparison of Two Daily Disposable Lenses
The purpose of this study was to compare the clinical performance of the new DAILIES® AquaComfort PLUS® FreshTech (DACP FreshTech) contact lenses to an already marketed daily disposable contact lens, DAILIES® AquaComfort PLUS®…
- Trial name
- NCT04013789
- Testing
- DACP FreshTech contact lenses, DACP contact lenses
- Where
- United States
- Volunteers
- 79 people
- Sponsor
- Alcon Research
Ametropia
Clinical Evaluation of Biomedics Monthly Sphere and Avaira Vitality Sphere
The aim of this study is to compare the short-term clinical performance of two sphere contact lenses.
- Trial name
- NCT06400914
- Testing
- Lens A (ocufilcon D), Lens B (fanfilcon A)
- Where
- Mexico
- Volunteers
- 44 people
- Sponsor
- CooperVision, Inc.
Astigmatism, Ametropia
Clinical Comparison of Two Daily Disposable Toric Soft Contact Lenses
The primary purpose of this study is to demonstrate noninferiority in the visual acuity at distance when wearing PRECISION1™ for Astigmatism (P1fA) soft contact lenses compared to another commercially available, soft toric…
- Conditions
- Astigmatism, Ametropia, Myopia
- Trial name
- NCT05483127
- Testing
- Verofilcon A toric soft contact lenses, Stenfilcon A toric soft contact lenses
- Where
- 11 sites in United States
- Volunteers
- 153 people
- Sponsor
- Alcon Research
Ametropia
The Clinical Comparison of Somofilcon A 1 Day and Nelfilcon A Daily Disposable Contact Lenses
This subject-masked, randomized, bilateral crossover study will compare the clinical performance and subjective acceptance of the somofilcon A 1 day soft contact lens with the nelfilcon A daily disposable lens when used on a…
- Trial name
- NCT04067141
- Testing
- somofilcon A, nelfilcon A
- Where
- United Kingdom
- Volunteers
- 70 people
- Sponsor
- CooperVision, Inc.
Myopia, Ametropia
LED Low-Intensity Red Light for Myopia Control in Youth: Efficacy and Safety Study
The purpose of this clinical trial was to investigate the efficacy and safety of repetitive low-intensity single-wavelength red light from an LED light source in controlling myopia progression in children and adolescents.
- Trial name
- NCT07375589
- Testing
- Red light treatment with 1.6mW LED light source, Red light treatment with 0.001mW LED light source
- Where
- China
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Shanghai Eye Disease Prevention and Treatment Center
Ametropia
Comparison of Two Toric Contact Lenses on Current Toric Wearers
The purpose of this study is to evaluate and compare the clinical performance of two toric contact lenses amongst 110 subjects, 2-week, single masked (subject), daily wear, randomized, bilateral, crossover study; 4 weeks…
- Trial name
- NCT00639379
- Testing
- senofilcon A toric, alphafilcon A toric
- Where
- 7 sites in United States
- Volunteers
- 89 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.