Clinical trials: Refractive Errors
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
Myopia
Study of Atropine Sulfate Eye Drops(0.01%) in Treating Near-work-induced Transient Myopia in Children
This study is a randomized, double-blind, placebo-controlled, parallel-group study to evaluate the safety and efficacy of atropine sulfate eye drops (0.01%) in treating transient myopia induced by near work tasks (NITM) in…
- Trial name
- NCT06697522
- Testing
- Atropine Sulfate
- Where
- China
- Volunteers
- 148 people
- Sponsor
- Ocumension Therapeutics (Suzhou) Co., Ltd
Myopia
Clinical Evaluation of the Safety and Efficacy of Yung Sheng 55 % Color Contact Lens
This was a single group, open-label clinical study to assess the safety and efficacy of Yung Sheng 55% Color Contact Lens for vision correction.
- Trial name
- NCT06128486
- Testing
- Soft Contact Lens
- Volunteers
- 62 people
- Sponsor
- Yung Sheng Optical Co., Ltd.
Refractive Errors
Clinical Validation of DACP Digital Design
The purpose of this study is to evaluate the visual performance of DAILIES® AquaComfort Plus® (DACP) Digital lenses by assessing distance visual acuity (VA) as compared to DACP sphere contact lenses after one week of wear.
- Trial name
- NCT03567005
- Testing
- Nelfilcon A digital contact lenses, Nelfilcon A contact lenses
- Where
- 5 sites in United States
- Volunteers
- 60 people
- Sponsor
- Alcon Research
Myopia, High Myopia
The Monitoring and Intervention of Refractive Changes in Children and Teenagers in Tianjin
The study aimed to collect multi-factor information on school-age children with pre-clinical myopia, and to identify the initial factors and warning signs of myopia.
- Trial name
- NCT05691296
- Testing
- Home training, School training
- Where
- China
- Volunteers
- 4,000 people
- Sponsor
- Tianjin Eye Hospital
Myopia
Performance Comparison Between Comfilcon A and Senofilcon C Lenses
The aim of this study is to determine the clinical performance of comfilcon A in comparison to senofilcon C.
- Trial name
- NCT02920957
- Testing
- comfilcon A, senofilcon C
- Where
- 5 sites in United States
- Volunteers
- 88 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
Myopia
Measurements of Corneal Biomechanical Properties Using a Dynamic Scheimpflug Analyzer for Young Healthy Adults in South Korea
The human cornea is affected by the magnitude and velocity of both internal and external forces because the cornea has both static and dynamic resistance components.
- Trial name
- NCT02627157
- Testing
- Dynamic Scheimpflug Analyzer
- Where
- South Korea
- Volunteers
- 472 people
- Sponsor
- Yonsei University
Presbyopia Condition
A Randomized, Active-Controlled, Double-Masked, Crossover Study to Evaluate the Clinical Performance of Deseyne (Vifilcon C) Daily Disposable Soft Contact Lens for Presbyopia Extended Depth of Focus (EDOF)
The goal of this clinical trial is to learn if the contact lens we are testing will work to extend the range of clear focus at distance to provide an increase in clear vision at closer ranges without the additional need for…
- Trial name
- EDOF (NCT06698731)
- Testing
- Test lens, Control lens
- Where
- 3 sites in United States
- Volunteers
- 78 people, healthy volunteers welcome
- Sponsor
- Bruno Vision Care
Myopia
Effect of Vision Therapy in Myopic Children With Poor Accommodative Response
This study aims to determine the treatment effect of vision therapy on myopic children by assessment of accommodative function before and after therapy.
- Trial name
- NCT03006601
- Testing
- Office-based accommodative/vergence therapy
- Where
- China
- Volunteers
- 34 people, healthy volunteers welcome
- Sponsor
- Sun Yat-sen University
Astigmatism Bilateral
Evaluation of Wear Experience With Daily Disposable and Monthly Replacement Toric Contact Lenses
Comparison of wear experience with daily disposable and monthly replacement soft contact lenses in contact lens wearers who have astigmatism.
- Trial name
- NCT05580575
- Testing
- Daily disposable toric soft contact lens, Monthly replacement toric daily wear soft contact lens
- Where
- 3 sites in United States
- Volunteers
- 67 people, healthy volunteers welcome
- Sponsor
- Ohio State University
Myopia
Clinical Validation of the New Print on Focus DAILIES Toric
The purpose of this study is to validate the improvements to the inversion indicator.
- Trial name
- NCT01097863
- Testing
- nelfilcon A contact lens, modified inversion indicator, nelfilcon A contact lens, no inversion indicator, nelfilcon A contact lens, inversion indicator
- Volunteers
- 280 people
- Sponsor
- CIBA VISION
Myopia, Progressive
Myopia-control Efficacy by Peripheral Defocus Lens (PDL)
The proposed study below aims to assess the effect of customized Bestivue PDL lenses on retinal image quality and myopia control. A total of 160 subjected would be enrolled in and randomized to allcoate into four groups.
- Trial name
- NCT05373693
- Testing
- Single vision lens, +2D PDL, +3D PDL
- Where
- China
- Volunteers
- 160 people, healthy volunteers welcome
- Sponsor
- Tianjin Eye Hospital
Presbyopia
A Feasibility Study to Assess the Visual Performance and Comfort of Hanita G4 Multifocal Soft Contact Lenses for Presbyopia at Normal Daily Routine Use
The G4 Multi multifocal contact lens is a soft contact lens intended to correct far, intermediate, and near vision for individuals with presbyopia. The lens covers the cornea and part of the sclera.
- Trial name
- NCT04841941
- Testing
- G4 Multifocal soft contact lens with a 54% water content for presbyopia
- Where
- 2 sites in Israel
- Volunteers
- 25 people
- Sponsor
- Hanita Lenses
Myopia, Astigmatism
SMILE Surgery in One Eye Compared to Ray Tracing-guided LASIK Surgery in the Fellow Eye
Participants will undergo LASIK surgery in one eye using ray tracing guided technology in one eye and LASIK surgery in the other eye using wavefront guided technology.
- Trial name
- NCT07721714
- Testing
- Ray tracing guided LASIK surgery
- Where
- United States
- Volunteers
- 62 people
- Sponsor
- Stanford University
Myopia
BIOCLEAN MPS (Multi-Purpose Solution) VII in Combination With Biofinity Lens: A Two Week Crossover Study
Two week, Open Label, randomized, bilateral, crossover, 1 week of daily wear in each combination (lens / disinfecting cleaning system).
- Trial name
- NCT02537730
- Testing
- Bioclean MPS VII, Aosept Clearcare, comfilcon A
- Where
- 3 sites in Japan
- Volunteers
- 33 people
- Sponsor
- CooperVision, Inc.
Visual Function
Comprehensive Evaluation of Visual Function
The purpose of this study is to assess the level of visual functioning in patients with various eye conditions while wearing different types of eyeglasses.
- Trial name
- NCT00894192
- Testing
- Izon Wavefront-guided lenses, Conventional lenses
- Where
- United States
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- The Chicago Lighthouse
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, High Myopia
Clinical Results of Small Incision Lenticule Extraction (SMILE) for the Correction of High Myopia
Small Incision Lenticule Extraction (SMILE) was introduced in 2011 using the VISUMAX femtosecond laser (Carl Zeiss Meditec, Jena, Germany). It is designed for correction of myopia and myopic astigmatism.
- Trial name
- NCT04110067
- Testing
- Small Incision Lenticule Extraction (SMILE) with Visumax (Carl Zeiss Meditec, Jena)
- Where
- Germany
- Volunteers
- 5,000 people, healthy volunteers welcome
- Sponsor
- Suphi Taneri
Hyperopia, Myopia
Clinical Study of Visibility Tinted Clariti Contact Lens
The purpose of this study was to investigate the safety and efficacy of the Sauflon Clariti Monthly silicone hydrogel contact lenses with handling tint (Sauflon Pharmaceuticals Limited) by comparison with Air Optix Aqua silicone…
- Trial name
- NCT01996787
- Testing
- Air Optix Aqua, Clariti with Handling Tint
- Where
- United Kingdom
- Volunteers
- 38 people, healthy volunteers welcome
- Sponsor
- Sauflon Pharmaceuticals Ltd
Cataract
Optimizing Refractive Results and Patient Satisfaction After Cataract Surgery
Cataract surgery is the most common eye surgery in the world. If the patient with cataract uses spectacles and both patient and surgeon find it beneficial, it is possible to compensate for the spectacles during surgery and…
- Trial name
- ORAPSCA (NCT05001932)
- Testing
- Cataract surgery
- Where
- Denmark
- Volunteers
- 400 people
- Sponsor
- Copenhagen University Hospital, Rigshospitalet