Clinical trials: Myopia; Refractive Error
Myopia
Effects of Autostereoscopic 3D Visual Training on Binocular Vision Function of Myopes
This study intends to conduct a relatively comprehensive binocular visual function examination and follow-up on two groups of myopic subjects, one receiving autostereoscopic 3D vision training and the other receiving 2D vision…
- Trial name
- NCT06266910
- Testing
- Visual training video
- Where
- China
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Myopia, Hyperopia
Safety and Efficacy Study of Topography-Guided LASIK to Treat Myopia and Hyperopia
This purpose of this study is to evaluate the safety and effectiveness of a topography-based custom ablation treatment using the ALLEGRETTO WAVE® Eye-Q 400 Hz laser system for treating myopia and hyperopia.
- Trial name
- NCT01028378
- Testing
- T-CAT topography-guided LASIK treatment with the Allegretto Wave Eye-Q 400 Hz Excimer Laser
- Where
- 10 sites in United States
- Volunteers
- 212 people, healthy volunteers welcome
- Sponsor
- Clinical Research Consultants, 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
Presbyopia, Refractive Errors
Development and Validation of an Internet-based Near and Intermediate-vision Reading Test
Primary objective of our study is to develop and validate an internet-based digital near and intermediate-vision reading test in the greek language.
- Conditions
- Presbyopia, Refractive Errors, Low Vision, Near Vision
- Trial name
- wDDART (NCT04618224)
- Testing
- DDART Testing, wDDART Testing
- Where
- 2 sites in Greece
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Democritus University of Thrace
Myopia
Dual Focus Soft Contact Lens Wear Cessation Study
The purpose of this study is to investigate the effect of ceasing treatment with dual focus soft contact lenses.
- Trial name
- NCT05779072
- Testing
- Single Vision Soft Contact Lens
- Where
- 4 sites in Canada, Portugal and 2 more
- Volunteers
- 83 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
Myopia
Contact Lens in Pediatrics (CLIP) in an Asian Population Study
To evaluate the safety, efficacy and physiological performance of daily disposable spherical and toric soft contact lenses in a vision-corrected population of children ages 8-11 years of age.
- Trial name
- CLIP (NCT00473304)
- Testing
- Johnson&Johnson Acuevue daily disposable lenses
- Where
- Singapore
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Singapore National Eye Centre
Myopia
Efficacy of Repeated Low-level Red-light Therapy in Myopia Control
Low-level red-light technology provides a new and innovative myopia control approach. This strategy enables relatively high energies of light to be delivered at much shorter durations of exposure to induce the myopia control…
- Trial name
- NCT05606237
- Testing
- Low-level Red Light Therapy Device
- Where
- United States
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- University of California, San Francisco
Myopia
Screening for Hyperopic Reserve in Kindergarten
Screening for hyperopic reserve among senior kindergarten children is an important population-based eye health measure. Hyperopic reserve refers to physiological hyperopia in young children, which acts as a natural buffer against…
- Trial name
- NCT07851532
- Where
- China
- Volunteers
- 134,000 people, healthy volunteers welcome
- Sponsor
- Beijing Tongren Hospital
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, Hyperopia
Multipurpose Disinfecting Solution Compatibility With a Silicone Hydrogel Contact Lens
The purpose of this study is to verify the compatibility of a silicone hydrogel lens when used with four multipurpose disinfecting solutions (OPTI-FREE® RepleniSH®, ReNu MultiPlus®, Solo-Care Aqua™ and MeniCareTM Soft).
- Trial name
- Amethyst (NCT00520689)
- Testing
- Silicone Hydrogel Contact Lens
- Where
- Canada
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- University of Waterloo
Myopia
Discontinuation of Lens Wear in New Ortho-k Children (DOEE2)
This study aims at investigating the efficacy of myopic control using ortho-k in younger and older children.
- Trial name
- DOEE2 (NCT01236755)
- Testing
- single-vision glasses, ortho-k lenses
- Where
- China
- Volunteers
- 91 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University
Myopia
Assessment of Bifocal and Prismatic Bifocal Spectacles for Myopia Control in Children
1. To determine if the effect of near-addition lenses (bifocals) is more prominent for children with high myopia progression. 2.
- Trial name
- NCT00787579
- Testing
- Bifocal spectacles, Prismatic bifocal spectacles
- Where
- Canada
- Volunteers
- 135 people, healthy volunteers welcome
- Sponsor
- Essilor International
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
Hyperopia, Myopia
A Comparison of Fellow Eyes Undergoing LASIK or PRK With a Wavefront-guided Excimer Laser Versus a Wavefront-optimized Excimer Laser
Subjects with myopia, hyperopia and astigmatism are being randomized to be treated in one eye with a wavefront-guided excimer laser and their fellow eye treated with a wavefront-optimized excimer laser.
- Conditions
- Hyperopia, Myopia, Astigmatism
- Trial name
- NCT01135719
- Testing
- LASIK and PRK
- Where
- United States
- Volunteers
- 137 people, healthy volunteers welcome
- Sponsor
- Edward E. Manche
Myopia, Hyperopia
Corneal Epithelial Thickness Mapping by Anterior Segment Optical Coherence Tomography in Patients With Refractive Errors
This study evaluates corneal epithelial thickness using anterior segment optical coherence tomography (AS-OCT) in patients with refractive errors.
- Conditions
- Myopia, Hyperopia, Astigmatism, Emmetropia
- Trial name
- NCT07647146
- Where
- Egypt
- Volunteers
- 360 people, healthy volunteers welcome
- Sponsor
- Sohag University
Myopia
Comparison of Next Generation Laser Techniques of Myopia Correction: iDesign vs. SMILE
The proposed study seeks to compare visual acuity, tomographic outcomes, biomechanical changes and inflammatory profile of normal eyes (matched for age, refraction and corneal thickness) undergoing iDesign and SMILE procedure.
- Trial name
- NCT03001401
- Testing
- iDesign, SMILE
- Where
- India
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Narayana Nethralaya
Myopia, Astigmatism
Early Changes Between Lenticule Extraction and Small-Incision Lenticule Extraction
The aim is to evaluate the short-term changes in ocular surface measures and tear inflammatory mediators after lenticule extraction (FLEx) and small-incision lenticule extraction (SMILE) procedures.
- Trial name
- NCT02540785
- Testing
- lenticule extraction, small-incision lenticule extraction
- Volunteers
- 41 people, healthy volunteers welcome
- Sponsor
- Sun Yat-sen University
Myopia, Astigmatism
Early Changes Among FLEx, LASIK and FS-LASIK
To evaluate the short-term changes in ocular surface measures and tear inflammatory mediators after lenticule extraction (FLEx), laser in situ keratomileusis (LASIK) and femtosecond laser-assisted laser in situ keratomileusis…
- Trial name
- NCT02551796
- Testing
- lenticule extraction, laser in situ keratomileusis, FS assisted laser in situ keratomileusis
- Where
- China
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- Sun Yat-sen University
Myopia, Dental Caries
Bedtime Routines and Children's Health
In Taiwan, the prevalence of sleep problems, myopia, and dental caries in school-age children is high. Little is known regarding the implementation of oral and vision health outcomes around bedtime.
- Conditions
- Myopia, Dental Caries, Sleep, Asthenopia
- Trial name
- NCT05201924
- Testing
- Bedtime routine, Control
- Where
- Taiwan
- Volunteers
- 160 people, healthy volunteers welcome
- Sponsor
- National Taiwan University
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.