Clinical trials: Refractive Error - Myopia
Refractive Surgery
Topography Guided LASIK by Different Protocols for Treatment of Astigmatism
Background and Rationale: LASIK has been among the highest satisfaction rates of surgical procedures, ranging from 82%-98%. Different ablation profiles have been developed over the years.
- Trial name
- NCT03597906
- Testing
- topography guided ablation, manifest refraction, full topography modified refraction
- Where
- Egypt
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Cairo University
Myopia
Comparative Clinical Evaluation of Daily Disposable Lenses in Symptomatic Lens Wearers
The purpose of this trial is to evaluate the extent to which symptoms improve in symptomatic contact lens wearers when fit with one of 5 different daily disposable contact lenses.
- Trial name
- NCT00953407
- Testing
- Nelfilcon A contact lens, Narafilcon A contact lens, Etafilcon A contact lens
- Volunteers
- 128 people
- Sponsor
- CIBA VISION
Cataract, High Myopia
Artificial Intelligence for Highly Myopic Cataract
This study aims to establish a multi-center artificial intelligence model for the accurate calculation of intraocular lens and its clinical application in highly myopic cataract, so as to improve the accuracy of the prediction of…
- Conditions
- Cataract, High Myopia, Myopia, Automatic Judgement
- Trial name
- AI-HMC (NCT06616506)
- Testing
- newly-invented AI model
- Where
- China
- Volunteers
- 500,000 people
- Sponsor
- Shanghai High Myopia Study Group
Myopia; Refractive Error
The Initiating Factors of Myopia Among Primary and Secondary School Students in Tianjin
There was a prospective cohort observational study. Forty hyperopic children, 40 myopic children and 120 emmetropia children were randomly selected from grade 1 to grade 3, and were followed up every six months for 3 years.
- Trial name
- NCT05637827
- Testing
- No intervention
- Where
- China
- Volunteers
- 200 people
- Sponsor
- Tianjin Eye Hospital
Myopia
Effects of Contact Lens Wear on Children's Self-Perceptions
The purpose of the study is to determine whether contact lens wear will improve children's self-perceptions more than spectacle wear.
- Trial name
- ACHIEVE (NCT00522288)
- Testing
- Soft contact lenses, Spectacle
- Where
- 5 sites in United States
- Volunteers
- 484 people, healthy volunteers welcome
- Sponsor
- Ohio State University
Refractive Error, Myopia
A Comparative Study of Two Daily Disposable Contact Lenses in Higher Myopia Subjects
The purpose of this study is to compare the change from baseline in central corneal curvature at one week, between 2 silicone hydrogel lenses, in higher myopic subjects.
- Trial name
- NCT02066922
- Testing
- Delefilcon A contact lens, Narafilcon A contact lens, Spectacles
- Volunteers
- 19 people
- Sponsor
- Alcon Research
Myopia, Myopia; Refractive Error
Peripheral Relative Refractive Power of Orthokeratology Lenses
Orthokeratology (OK) has been demonstrated to be an effective intervention for slowing axial elongation in children with myopia.
- Trial name
- NCT07294404
- Testing
- orthokeratology
- Where
- China
- Volunteers
- 53 people, healthy volunteers welcome
- Sponsor
- Tianjin Eye Hospital
Myopia
Comparing Myopia Control Spectacle Lenses for Visual Comfort, Adaptation, and Satisfaction in Myopic Children
The goal of this clinical trial is to demonstrate that the visual comfort, adaptation, and overall satisfaction associated with the use of the test spectacle lenses are not inferior to those of the control spectacle lenses in…
- Trial name
- EVASION (NCT07683481)
- Testing
- HADAL Spectacle Lenses, Stellest® Spectacle Lenses
- Volunteers
- 20 people
- Sponsor
- Essilor International
Myopia, Visual Diet
Longitudinal Measurements of Visual Diet in Children
Myopia is a leading cause of visual impairment worldwide, with prevalence rising rapidly among children. Growing evidence suggests that environmental and behavioral factors play a dominant role in ocular growth; however, current…
- Conditions
- Myopia, Visual Diet, Pupil, Viewing Distance
- Trial name
- VEET (NCT07642999)
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- State University of New York College of Optometry
Myopia
Myopia Control With the Multi-segment Lens
The purpose of this study is to determine if the Multiple-Segment (MS) spectacle lens can slow myopia progression in Hong Kong schoolchildren. MS lens is also called Defocus Incorporated Multiple Segments (DIMS) spectacle lens
- Trial name
- NCT02206217
- Testing
- Multiple-Segment spectacle lens
- Where
- 2 sites in China, Hong Kong
- Volunteers
- 183 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University
Myopia, Progressive
Slow Myopia Progression With Different Irradiance Light
It is a prospective clinical control study on red light control myopia with specail design spectacles for 75 children in 3 groups. Study Groups with two different powers of 0.6 mW and 1.2 mW at wavelength of 650nm.
- Trial name
- NCT05881655
- Testing
- Airdoc Red Lighting Device, Special Spectacles to Control Myopia
- Where
- China
- Volunteers
- 75 people
- Sponsor
- Beijing Airdoc Technology Co., Ltd.
Myopia
Refitting Frequent Replacement Lens Wearers Into Clariti 1 Day And 1-Day Acuvue Moist Daily Disposable Spherical Lenses
The objective of the study is to evaluate and compare the performance of somofilcon A to etafilcon A when worn on a daily disposable wear modality over a period of approximately one week.
- Trial name
- NCT04195893
- Testing
- somofilcon A, etafilcon A
- Where
- Canada
- Volunteers
- 56 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
Myopia
The Effects of Low Concentration Atropine on Pupil Size and Accommodation
The purpose of this study is to determine whether less frequent dosing of atropine drops may be as effective as daily dosing for the treatment of progressive myopia.
- Trial name
- NCT02870478
- Testing
- Atropine
- Where
- United States
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- University of California, Berkeley
Myopia
Visual Outcomes and Contrast Sensitivity After Myopic LASIK
Evaluate visual outcomes and contrast sensitivity for subjects undergoing bilateral myopic LASIK procedure using the 200 kHz WaveLight® FS200 Femtosecond Laser and the WaveLight® Allegretto Wave® Eye-Q Laser.
- Trial name
- NCT01746589
- Testing
- bilateral myopic LASIK
- Where
- United States
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- Daniel S. Durrie, MD
Myopia
Clinical Performance Comparison of Several Different Contact Lenses
The purpose of the study is to evaluate the possible benefits of second generation silicone hydrogel contact lenses.
- Trial name
- NCT00912028
- Testing
- senofilcon A, lotrafilcon B, balafilcon A
- Where
- 11 sites in Brazil
- Volunteers
- 71 people
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Myopia
Validation of the Utility of Myopia Intelligent Diagnostic System
The screening of myopia via artificial intelligence represents an challenge in computational medicine. Here, the investigators use "deep learning" to create an automatic diagnostic system for myopia screening using ocular…
- Trial name
- NCT04014725
- Testing
- Myopia Intelligent Diagnostic System
- Volunteers
- 50 people
- Sponsor
- Sun Yat-sen University
Myopia
The Effect of +3.00ADD on Myopia Progression in Chinese Children
The purpose of this study is to evaluate the effect of +3.00ADD vs single vision spectacle on the progression of myopia in children.
- Trial name
- NCT03242226
- Testing
- two spectacles, single vision spectacles
- Where
- China
- Volunteers
- 440 people
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Myopia, Progressive
Myopia Preventing With Distance-image Screen
This study is for testing the efficacy and safety of distance-image screens for preventing myopia in children for 12 month. Each subjects would be asked to paired test the ocular parameters between before and after 12-month…
- Trial name
- DIS (NCT06088225)
- Testing
- distance-image screen
- Where
- China
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Beijing Airdoc Technology Co., Ltd.
Myopia
A Clinical Study to Evaluate the Remote Monitoring of Myopia Patients With the EyeQue Insight
The objective of this study is to determine whether the remote monitoring of myopia patients with the EyeQue Insight (visual acuity test) can replace regularly scheduled follow-up visits.
- Trial name
- NCT04693260
- Testing
- Visual Acuity with a Hand-held Device Supported by Mobile App.
- Where
- United States
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- EyeQue Corp.
Dry Eye Syndrome, Myopia
Clinical Evaluation of a Daily Disposable Contact Lens in Symptomatic Weekly/Monthly Lens Wearers
The purpose of this study was to evaluate the reduction of contact lens-related dryness symptoms when symptomatic weekly/monthly contact lens wearers were switched to DAILIES® AquaComfort Plus® lenses for a two-week period using…
- Trial name
- NCT01614600
- Testing
- Nelfilcon A contact lenses
- Volunteers
- 88 people
- Sponsor
- Alcon Research
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