Clinical trials: Refractive Error
Myopia
Efficacy of a Novel Myopia Defocus Spectacle Lens in School-Aged Children
This study aims to evaluate the short-term efficacy and safety of a novel, proprietary spectacle lens. Forty myopic participants, aged 6 to 15 years, will be prescribed with the study spectacles for a period of six months.
- Trial name
- BLMC (NCT07511387)
- Testing
- BCMC lens
- Where
- Hong Kong
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University
Myopia
Evaluate the Safety and Efficacy of Two Types of Circular Column Modulated Lenses for Delaying the Progression of Myopia
Clinical trial to evaluate the safety and effectiveness of two kinds of ring band cylindrical lens in delaying the progression of myopia
- Trial name
- NCT05288335
- Testing
- Circular cylindrical mirror modulated frame glasses (compact), Circular cylindrical mirror modulated frame glasses (strong defocus), single vision frame glasses
- Where
- China
- Volunteers
- 240 people, healthy volunteers welcome
- Sponsor
- Tianjin Eye Hospital
Anisometropia, Hyperopia
Photorefractive Keratectomy for Severe Anisometropia and Isoametropia Associated With Amblyopia
Photorefractive keratectomy (PRK) with excimer laser has been used successfully to treat myopia, hyperopia, and astigmatism in adults for over 35 years.
- Conditions
- Anisometropia, Hyperopia, High Myopia, Amblyopia Isometropic
- Trial name
- NCT03610997
- Testing
- Photorefractive keratectomy
- Where
- United States
- Volunteers
- 200 people
- Sponsor
- Baylor College of Medicine
Myopia
Overall Performance of a 1-day Silicone Hydrogel Lens When Habitual Soft Lens Wearers Are Refit
The objective of the study is to compare the overall subjective comfort profile over 8 hours of lens wear in two groups of habitual soft contact lens wearers (daily disposable hydrogel lenses and frequent replacement lenses) when…
- Trial name
- NCT02588573
- Testing
- etafilcon A (control), somofilcon A (test)
- Where
- 2 sites in Canada
- Volunteers
- 103 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
Myopia, Progressive, Children, Only
Eleven Years of Menicon Z Night Contact Lens Wear in Reducing Myopia Progression in Children
To compare axial length growth of white European myopic children wearing Menicon Z Night orthokeratology contact lenses to a control group of distance, single-vision glasses and contact lenses over an 11-year period.
- Trial name
- MCOS11 (NCT04806711)
- Testing
- Menicon Z Night, Control
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Menicon Co., Ltd.
Myopia
Effect of MyopiaEd Messaging on Improving Eye-use Behavior and Myopia Control Among Primary School Students in China
Myopia represents a significant global public health challenge, with China experiencing particularly high myopia prevalence among children and adolescents.
- Trial name
- NCT07211893
- Testing
- Send myopia-related health education message
- Volunteers
- 1,330 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Amblyopia, Refractive Errors
The Effect of Early Glasses on the Development of Amblyopia
In a randomized controlled trial, we will establish whether early glasses for high refractive error at age one reduce the development of amblyopia between age one and four.
- Trial name
- EGS (NCT04740593)
- Testing
- Orthoptic care with the prescription of glasses from age 12-18 months onwards, Orthoptic care without the prescription of glasses from age 12-18 months onwards, First measurement only
- Where
- Netherlands
- Volunteers
- 601 people, healthy volunteers welcome
- Sponsor
- Erasmus Medical Center
Visual Acuity, Refractive Errors
Pre-symptomatic Screening of Visual Acuity in Pre-school Students
The present research process is a prospective, non-interventional clinical study that will be conducted -under the auspices of the Democritus University of Thrace (DUTH)- in the pre-school students of the city of Alexandroupolis…
- Conditions
- Visual Acuity, Refractive Errors, Low Vision, Vision Disorders
- Trial name
- NCT05835193
- Testing
- Diagnostic Test: Distance Visual Acuity Examination
- Where
- Greece
- Volunteers
- 1,098 people, healthy volunteers welcome
- Sponsor
- Democritus University of Thrace
Myopia, Myopia, Progressive
Multicenter RCT: LED Red Light Dose-Response in Myopia Progression Control
The goal of this clinical trial is to verify the effectiveness and safety of non-laser LED red light combined with defocus lens therapy for controlling myopia progression and evaluate the impact of different intervention…
- Trial name
- NCT07330180
- Testing
- Yingtong Vision Rehabilitation Instrument, Hoya DIMS multi-point myopia defocus lens
- Where
- 7 sites in China
- Volunteers
- 364 people, healthy volunteers welcome
- Sponsor
- Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine
Refractive Errors, Visual Impairment
Trial of an Educational Intervention to Promote Spectacle Use Among Secondary School Children in Islamabad, Pakistan
This study is planned to test an educational intervention promoting the use of spectacles among secondary school children. It is based on the hypothesis that educating teachers, parents and children about the importance of…
- Trial name
- NCT03670303
- Testing
- Educational intervention
- Where
- 8 sites in Pakistan
- Volunteers
- 240 people
- Sponsor
- Isra University
Myopia
Correction of Myopia Evaluation Trial (COMET)
To evaluate whether progressive addition lenses (PALs) slow the rate of progression of juvenile-onset myopia (nearsightedness) when compared with single vision lenses, as measured by cycloplegic autorefraction.
- Trial name
- NCT00000113
- Testing
- Progressive Addition Lenses, single vision lenses
- Where
- 4 sites in United States
- Volunteers
- 469 people
- Sponsor
- Stony Brook University
Myopia
CHAMP: Study of NVK-002 in Children With Myopia
Stage 1: To evaluate the safety and efficacy of 2 concentrations of NVK-002 compared to Vehicle (placebo) for slowing the progression of myopia in children over a 3 year treatment period.
- Trial name
- NCT03350620
- Testing
- NVK-002 Concentration 1, NVK-002 Concentration 2
- Where
- 26 sites in United States, Hungary and 4 more
- Volunteers
- 670 people
- Sponsor
- Vyluma, Inc.
Myopia, Refractive Errors
Light Emitting Diodes With a Continuous Spectrum of 430-780nm for Myopia Prevention
The purpose of this clinical trial is to evaluate the effect of light-emitting diodes (LEDs) with a continuous spectrum of 430-780 nm for lighting in the classroom on myopia prevention among children in Grades 2 and 3.
- Conditions
- Myopia, Refractive Errors, Eye Diseases
- Trial name
- NCT05728762
- Testing
- Novel LEDs
- Where
- China
- Volunteers
- 1,920 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Myopia
Myopia Control by Combining Auricular Acupoint and Atropine Eyedrops
This study was designed to compare the difference of using atropine eyedrops alone from atropine combined with the stimulation of auricular acupoints therapy in reducing myopia progression.
- Trial name
- NCT00457717
- Testing
- 0.25 % atropine, 0.5 % atropine, 0.25 % atropine+auricular acupoints
- Where
- Taiwan
- Volunteers
- 60 people
- Sponsor
- China Medical University, China
Myopia
Noninvasive and Dynamic Monitoring the Biological Parameters of Eyes in Different Age Groups
Myopia is the most common refractive eye disease worldwide. The number of cases is up to 2 billion. In recent years, the incidence of myopia in China is obviously rising trend.
- Trial name
- NCT05250440
- Where
- China
- Volunteers
- 240 people, healthy volunteers welcome
- Sponsor
- Zhongnan Hospital
Myopia (Disorder), Astigmatism
Optical Quality of the Cornea in Orthokeratology
Analyzing Optical Quality After the Use of Overnight Orthokeratology (Ortho-K)
- Trial name
- COPCORTO (NCT06775509)
- Testing
- Ortho-K
- Where
- Spain
- Volunteers
- 23 people, healthy volunteers welcome
- Sponsor
- Institut Investigacio Sanitaria Pere Virgili
Myopia, Randomized Controlled Trials
Effect of a Myopia Prediction System on Myopia Prevention and Control
The global rise in myopia, particularly among children and adolescents in China, underscores the inadequacy of current prevention strategies, indicating that conventional screening and education alone are insufficient to curb the…
- Conditions
- Myopia, Randomized Controlled Trials, Artificial Intelligence (AI)
- Trial name
- NCT06633393
- Testing
- Feedback on Predicted High Myopia Risk at Age 18 Using the Myopia Prediction System, Feedback on Ophthalmic Examinations
- Where
- China
- Volunteers
- 20,000 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Myopia
Performance Evaluation of a New Daily Disposable Silicone Hydrogel Lens
The purpose of this study was to compare a new daily disposable, silicone hydrogel contact lens to marketed daily disposable, silicone hydrogel contact lenses.
- Trial name
- TUNGSTEN (NCT01371552)
- Testing
- delefilcon A contact lens, filcon II 3 contact lenses, narafilcon A contact lenses
- Where
- Canada
- Volunteers
- 119 people
- Sponsor
- CIBA VISION
Myopia
Myopia Prevention With Reading Glasses
The last decades have seen a significant increase in myopia in children and young adults. Possible cause: increased near-work (school, computer, smartphone).
- Trial name
- SMART2 (NCT05030103)
- Testing
- Reading glasses, +2.0 diopters
- Where
- Liechtenstein
- Volunteers
- 1,500 people, healthy volunteers welcome
- Sponsor
- Reis Augenklinik AG
Myopia
The Effect of Blue-light Filtering Spectacle Lenses on Myopia Progression in Schoolchildren
The purpose of this study is to investigate if the blue-light filtering spectacle lenses promote myopia progression in schoolchildren.
- Trial name
- NCT03538002
- Testing
- Blue-light filtering spectacle lenses
- Where
- Hong Kong
- Volunteers
- 148 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University