Clinical trials: Refractive Error - Myopia
Refractive Error
Fitting Children With Contact Lenses
The purpose of this three-month study is to compare the quality of life and ease of fit among children wearing investigational single-vision contact lenses, commercially marketed single-vision contact lenses, and commercially…
- Trial name
- COPPER (NCT01233089)
- Testing
- Lotrafilcon B contact lens, investigational, Lotrafilcon B contact lens, commercial (AIR OPTIX AQUA), Lotrafilcon B multifocal contact lens, commercial (AIR OPTIX AQUA MULTIFOCAL)
- Where
- Canada
- Volunteers
- 194 people
- Sponsor
- CIBA VISION
Myopia
Investigation of the Regulation of Retinal and Choroidal Blood Vessels in Various AL Based on WF SS-OCTA Detection With Changes in Body Position
This prospective observational study aims to understand the effects of different subaxial body positions on choroidal and retinal blood vessel density.
- Trial name
- NCT06587776
- Volunteers
- 60 people
- Sponsor
- Science and Technology Department of Sichuan Province
Myopia
Multi-center Clinical Evaluation of PC 1-Day vs 1-Day Acuvue Moist
The objective of this study is to compare the clinical performance of ProClear 1-Day versus 1-Day Acuvue Moist each for one week of daily disposable wear.
- Trial name
- NCT02024698
- Testing
- omafilcon A, etafilcon A
- Where
- 4 sites in United States
- Volunteers
- 43 people
- Sponsor
- CooperVision, Inc.
Myopia
Evaluation of the Efficacy of Red Light in Adult Patients With High and Extreme Myopia
This study, led by Jie ying from the Ophthalmology Department of Beijing Tongren Hospital Affiliated to Capital Medical University, is a researcher-initiated clinical trial (IIT) designed to evaluate the therapeutic efficacy of…
- Trial name
- NCT07412678
- Testing
- Red light, Single vision spectacle lenses
- Where
- China
- Volunteers
- 128 people
- Sponsor
- Beijing Tongren Hospital
Myopia
Efficacy of Myopia-control Lenses in a Population of Young Adults : the OPTIMA Study
The goal of this clinical trial is to learn if myopia-control eyeglass lenses (Essilor® Stellest® 2.0) can slow down the progression of short-sightedness (myopia) in young adults, compared with standard single-vision lenses.
- Trial name
- OPTIMA (NCT07804043)
- Testing
- Essilor® Stellest® 2.0 myopia-slowing lenses, Standard lenses
- Where
- France
- Volunteers
- 134 people
- Sponsor
- Fondation Ophtalmologique Adolphe de Rothschild
Myopia
Low-dose Atropine for the Prevention of Myopia Progression in Danish Children
Myopia (nearsightedness) is increasing in prevalence throughout the world. It is associated with a risk of potentially blinding complications such as retinal detachment and myopic maculopathy.
- Trial name
- APP (NCT03911271)
- Testing
- 0.1% atropine and 0.01% atropine, 0.01% atropine, 0.9% Sodium-chloride
- Where
- 3 sites in Denmark
- Volunteers
- 97 people
- Sponsor
- Line Kessel
Vision Loss
First-Sight Refractive Error Correction in the Developing World
The aim of this study is to test the efficacy of the First-Sight refractive kit designed to provide refractive correction of simple hyperopia, myopia and astigmatism with autorefraction.
- Trial name
- NCT01598818
- Where
- 2 sites in United States, Haiti
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- University of Nebraska
Myopia
Efficiency, Predictability and Security of the Trans-epithelial Photorefractive Keratectomy
The photorefractive keratectomy was the first correction mode refractive laser. It's a photo-ablation of a predetermined thickness of anterior corneal stroma.
- Trial name
- MYOPAS (NCT02893592)
- Volunteers
- 118 people
- Sponsor
- Centre Hospitalier Régional Metz-Thionville
Cataract, Myopia
Measurement of Antioxidant Activity on Postoperative Inflammation in Patients Undergoing Ophthalmic Surgery
This trial hypothesized that novel laser refractive surgery techniques (PRK, LASIK, SMILE) or laser-assisted cataract surgery (FLACAS) could suppress postoperative inflammation and improve recovery in patients by reducing…
- Trial name
- NCT05905237
- Testing
- Cataract surgery, Femtosecond-LASIK, SMILE
- Where
- 2 sites in Taiwan
- Volunteers
- 132 people, healthy volunteers welcome
- Sponsor
- Chang Gung Memorial Hospital
Pathological Myopia
Efficacy and Safety of Ranibizumab in Patients With Visual Impairment Due to Choroidal Neovascularization Secondary to Pathologic Myopia
This study is designed to evaluate the efficacy and safety of two different dosing regimens of 0.5 mg ranibizumab given as intravitreal injection in comparison to verteporfin PDT in patients with visual impairment due to…
- Trial name
- NCT01217944
- Testing
- Ranibizumab, Verteporfin PDT
- Where
- 74 sites in Austria, Canada and 18 more
- Volunteers
- 277 people
- Sponsor
- Novartis Pharmaceuticals
Myopia
Clinical Performance of Extended Wear Silicone Hydrogel Lenses
The primary purpose of this study is to investigate the clinical performance of a new silicone hydrogel contact lens over a period of 6 months of extended wear.
- Trial name
- NCT00441233
- Testing
- Silicone hydrogel contact lens
- Where
- Australia
- Sponsor
- University of Melbourne
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, Progressive
Low Concentration Atropine in the Prevention of Myopia in Children.
This double-blind, randomized controlled clinical study is to evaluate the effectiveness and safety of low concentration atropine in preventing myopia in pre-myopia children, and to explore whether there is a dose effect…
- Trial name
- NCT05939882
- Testing
- low concentration atropine (0.01%), low concentration atropine (0.02%), low concentration atropine (0.04%)
- Where
- China
- Volunteers
- 428 people
- Sponsor
- Shanghai Eye Disease Prevention and Treatment Center
Myopia
A RCT of Spectacles With Aspherical Lenslets or 0.05% Atropine for Myopia Control
To date, randomized trials of low-concentration atropine eyedrops and specially designed spectacle lenses to slow the progression of myopia are limited in number and results are inconsistent in non-Asian children.
- Trial name
- NCT07095894
- Testing
- Atropine, Spectacles with HAL
- Where
- 18 sites in United States
- Volunteers
- 348 people
- Sponsor
- Jaeb Center for Health Research
Myopia
Clinical Evaluation of the Vedera KXS for the Treatment of Spherical Myopia
The objective of this clinical investigation is to evaluate the safety and efficacy of the Vedera KXS in sighted eyes for the correction of spherical myopia.
- Trial name
- NCT00925041
- Testing
- Vedera KXS
- Where
- Turkey (Türkiye)
- Volunteers
- 40 people
- Sponsor
- Glaukos Corporation
Myopia
Evaluating the Initial Lens Handling Experience of Neophyte Contact Lens Wearers Fitted With Precision1 and 1-Day Acuvue Moist Contact Lenses
The initial subjecting handling experience of neophyte contact lens wearers with Precision1 will be compared to that with a daily disposable lens which mas been on the market for numerous years (1-Day ACUVUE Moist).
- Trial name
- SALUKI (NCT04205162)
- Testing
- Verafilcon A, Etafilcon A
- Where
- Canada
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- University of Waterloo
Myopia
A Comparative Analysis of Myopia Prevalence Among Madarsa Students vs. Non-Madarsa Students in Sukkur
Myopia (nearsightedness) has become a major global health concern, particularly among students, due to factors such as prolonged screen time, close-up work, and limited outdoor activities.
- Trial name
- NCT06913972
- Where
- Pakistan
- Volunteers
- 364 people
- Sponsor
- Superior University
Refractive Errors
Changes in Angle Kappa and Corneal Back Elevations After Laser in Situ Keratomileusis in Myopic Astigmatism
Refractive errors and corneal astigmatism are associated with changes in angle kappa and corneal back elevation at the thinnest point in Pentacam.
- Trial name
- NCT06166212
- Volunteers
- 50 people
- Sponsor
- Ain Shams University
Visual Developmental Disorders
Tertiary Care for Visual Developmental Disorders in Pre-school Children
Visual development disorders are major public health problems among children especially in China. How to find an effective and economic way to manage the larger number of children in China remains exploring.
- Trial name
- NCT03251456
- Testing
- Tertiary care, Usual Care
- Where
- China
- Volunteers
- 1,114 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Myopia, Progressive
To Evaluate the Efficacy and Safety of an Defocus Lens in Slowing the Progression of Myopia
To confirm the efficacy of DIMS lenses in controlling myopia progression, we planned a prospective, single-centre, randomised, double-blind, controlled, non-inferiority clinical study.
- Trial name
- NCT06405711
- Testing
- frame lens
- Where
- China
- Volunteers
- 138 people, healthy volunteers welcome
- Sponsor
- Tianjin Eye Hospital
The first 1,020 results can be paged through. Add a filter or change the sort order to reach the rest.