Clinical trials: Refractive Error - Myopia
Myopia
Variation of Orthokeratology Lens Treatment Zone (VOLTZ) Study
This project aims to study the effects of treatment characteristics on myopia control in orthokeratology by investigating the effects of modified treatment zone by reducing the lens back optic zone diameter on the effect of…
- Trial name
- NCT03191942
- Testing
- Modified ortho-k lenses, Ortho-k lenses
- Where
- 2 sites in Hong Kong
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University
Optical Coherence Tomography, Refractive Errors
To Study the Effects of Refractive Surgery on OCT Measurements in the Eye
Corrective eye surgeries, such as Lasik, are widely used to correct focusing problems such as myopia, or nearsightedness. Often these patients develop other conditions like myopic maculopathy or glaucoma which require monitoring…
- Conditions
- Optical Coherence Tomography, Refractive Errors, Myopia
- Trial name
- NCT05856786
- Testing
- Optical coherence tomography
- Where
- United States
- Volunteers
- 33 people
- Sponsor
- University of Nebraska
Myopia
Effects of 650nm Low Energy Light on Human Retina and Choroid Microcirculation
This project is a single-center, prospective, self-controlled clinical study. It intends to select patients with simple medium and low degree myopia as subjects, and apply 650nm low-energy red light irradiation to the retina to…
- Trial name
- NCT04604405
- Testing
- photobiomodulation
- Where
- China
- Volunteers
- 126 people
- Sponsor
- Central South University
Myopia
A Study to Evaluate the Product Performance of a New Silicone Hydrogel Contact Lens
The objective of this study is to evaluate the product performance of a new silicone hydrogel soft contact lens when worn by current soft contact lens wearers on a daily wear basis.
- Trial name
- NCT01873846
- Testing
- Silicone Hydrogel Contact Lens
- Where
- United States
- Volunteers
- 400 people
- Sponsor
- Bausch & Lomb Incorporated
Myopia
A Clinical Comparison of Three Soft Daily Disposable Contact Lenses
This study aims to compare the clinical performance of the somfilcon A, nelfilcon A II 2 and omafilcon A II 2 daily disposable contact lenses.
- Trial name
- NCT02920983
- Testing
- somofilcon A, nelfilcon A II 2, omafilcon A ll 2
- Where
- United Kingdom
- Volunteers
- 51 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
Myopia
Comparative Clinical Evaluation of Daily Disposable Lenses in Symptomatic Daily Disposable Lens Wearers
The purpose of this study is to evaluate the extent to which symptoms improve in symptomatic contact lens wearers when fit with one of two different daily disposable contact lenses.
- Trial name
- NCT01035905
- Testing
- Nelfilcon A contact lens, Narafilcon A contact lens
- Volunteers
- 63 people
- Sponsor
- CIBA VISION
Nearsightedness, Astigmatism
High Resolution Wavefront-guided vs. Wavefront Optimized LASIK
The investigators are comparing outcomes of LASIK surgery using a high definition wavefront-guided laser to a wavefront-optimized laser in patients with nearsightedness with and without astigmatism.
- Trial name
- NCT02565537
- Testing
- LASIK
- Where
- United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Stanford University
Myopia
Time Outdoors as an Intervention for Myopia in Children
The purpose of this study is to determine whether improved outdoor time has an effect on the onset and progression of myopia in children.
- Trial name
- NCT02980445
- Testing
- Outdoor activity 1, Outdoor activity 2
- Volunteers
- 7,200 people
- Sponsor
- Shanghai Eye Disease Prevention and Treatment Center
Myopia
An Evaluation of Marketed Contact Lens Disinfectant Systems on Eyelid Tissues
The purpose of this study was to assess and compare the effect of the repeated usage of 2 different care systems (one hydrogen peroxide based cleaning and disinfecting system and one PHMB containing multipurpose system) with…
- Trial name
- ID11-56 (NCT01594294)
- Testing
- AOSEPT® Plus contact lens solution, ReNu MultiPlus® contact lens solution, Etafilcon A contact lenses
- Volunteers
- 100 people
- Sponsor
- Alcon Research
Presbyopia
A Prospective Study To Evaluate The Raindrop Near Vision Inlay In Presybopic or Pseudophakic Patients Treated With Mitomycin C Following Femtosecond Flap Creation.
The clinical objective of this study is to evaluate the Raindrop® Near Vision Inlay for the improvement of near vision in presbyopic or pseudophakic patients treated with low dose Mitomycin C immediately following femtosecond…
- Trial name
- NCT03101501
- Testing
- Mitomycin c, Raindrop Near Vision Inlay
- Where
- 3 sites in United States
- Volunteers
- 9 people
- Sponsor
- Key-Whitman Eye Center
Cataract, Astigmatism
Evaluation of Toric Intraocular Lens(IOL) Combined With Capsular Tension Ring(CTR) in Patients With Cataract Combined With High Myopia
The objective of this study is to evaluate the postoperative visual quality and IOL stability in patients with cataracts and high myopia who have undergone surgery using astigmatism-correcting IOLs in conjunction with tension…
- Conditions
- Cataract, Astigmatism, Intraocular Lens Rotation
- Trial name
- NCT06571773
- Testing
- intraoperative implantation of Capsular Tension Ring, none intraoperative implantation of CTR
- Where
- China
- Volunteers
- 72 people
- Sponsor
- Shanghai 10th People's Hospital
Myopia
Performance Evaluation of DAILIES® TOTAL1™ in First Time Contact Lens Wearers
The purpose of this study was to evaluate the performance of DAILIES® TOTAL1™ in first time contact lens wearers.
- Trial name
- NCT01494545
- Testing
- Delefilcon A contact lens
- Volunteers
- 102 people
- Sponsor
- Alcon Research
Myopia
A Comparison of Manufacturing Processes for AIR OPTIX® COLORS Contact Lens
The purpose of this feasibility study was to compare AIR OPTIX® COLORS contact lenses manufactured using an automated process to AIR OPTIX® COLORS contact lenses manufactured using a semi-automatic process.
- Trial name
- NCT01614678
- Testing
- Lotrafilcon B contact lens with color, automated, Lotrafilcon B contact lens with color, semi-automated
- Volunteers
- 49 people
- Sponsor
- CIBA VISION
Refractive Errors
Study to Evaluate the Safety and Efficacy of HI-BRITE Large Diameter Rigid Gas Permeable Contact Lens
Study to evaluate the safety and efficacy of HI-BRITE large diameter rigid gas permeable contact lens (hexafocon b) test when worn on a daily wear basis in the correction of myopia/hyperopia/astigmatism/presbyopia/ and irregular…
- Trial name
- NCT02812316
- Testing
- HI-BRITE Large Diameter Rigid Gas Permeable Contact Lens
- Where
- Taiwan
- Volunteers
- 136 people, healthy volunteers welcome
- Sponsor
- Taipei Medical University Hospital
Myopia
Short-term Clinical Performance of Multifocal Soft Contact Lens
The study is aimed to observe the short-term clinical performance of MiSight™ multifocal soft contact lens compared with Proclear™ 1day, including objective examination, subjective acceptability of wearers, and doctors'…
- Trial name
- NCT05273606
- Testing
- MiSight mutifocal soft contact lens, Proclear 1 Day soft contact lens
- Where
- China
- Volunteers
- 40 people
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Refraction Error, Myopia
The MORE Study: Manifest vs. Online Refraction Evaluation
The assessment of the refractive state of the eye is a fundamental and important part of ophthalmic and optometric clinical practice.
- Conditions
- Refraction Error, Myopia, Astigmatism
- Trial name
- MORE (NCT03313921)
- Testing
- Online Manifest Refraction
- Where
- Netherlands
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- UMC Utrecht
Myopia
650nm Low-level Red-light for Myopia Control and Prevention in Children
A multicenter randomized controlled trial, evaluating the efficacy and safety of 650nm low-level red-light irradiation for myopia control and prevention in children.
- Trial name
- NCT05786586
- Testing
- 650 nm low-level red-light
- Where
- China
- Volunteers
- 572 people
- Sponsor
- Beijing Tongren Hospital
Myopia, Refractive Error
A Comparison of Two Color Contact Lenses in Habitual Clear Contact Lens Wearers
The purpose of this study was to evaluate overall satisfaction with AIR OPTIX® COLORS as compared to FRESHLOOK® COLORBLENDS contact lenses.
- Trial name
- NCT01782482
- Testing
- Lotrafilcon B contact lens with color, Phemfilcon A contact lens with color
- Volunteers
- 574 people
- Sponsor
- Alcon Research
Myopia
LSH Silicone Hydrogel Soft Hydrophilic Contact Lens for Daily Wear
This study is to evaluate the performance of the LSH (mangofilcon A) silicone hydrogel soft contact lenses when used as a daily wear contact lens for the correction of myopia.
- Trial name
- NCT01735045
- Testing
- Lagado LSH (mangofilcon A) Soft (hydrophilic) Contact Lens, Benz 3GX (hioxifilcon B) Soft (hydrophilic) Contact Lens
- Where
- 5 sites in United States
- Volunteers
- 76 people, healthy volunteers welcome
- Sponsor
- Szabocsik and Associates, Inc.
Myopia, Astigmatism
Wavelight Plus Sightmap-LASIK vs. Wavefront-Optimized-LASIK
The goal of this clinical trial is to learn if the wavelight plus Sightmap (WLP) method or the wavefront-optimized (WFO) method for calculating LASIK customization treatment gives better vision, better satisfaction, and fewer…
- Trial name
- NCT07855094
- Testing
- LASIK calculated ablation using Wavefront-Optimized, wavelight plus Sightmap (WLP) Guided LASIK calculated
- Where
- United States
- Volunteers
- 49 people
- Sponsor
- 59th Medical Wing
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