Clinical trials: Axial Length
Birth Year-dependent Eye Parameters Change
Analyzing the Changes in Eye Axis Length and Corneal Curvature in Central China
The Chinese lifestyle has undergone dramatic changes over the past century. In recent years, limited studies reported the changing trend in crucial eye parameters of people born in different decades.
- Trial name
- NCT06126302
- Testing
- Birth year
- Volunteers
- 60,000 people
- Sponsor
- Min Ke
Myopia
The Beijing Childhood Eye Study
Axial myopia has emerged as the leading cause of irreversible vision loss in East Asia, driven by its progression to sight-threatening complications including myopic macular degeneration, retinal detachment, open-angle glaucoma…
- Trial name
- BCES (NCT06931444)
- Where
- China
- Volunteers
- 3,760 people, healthy volunteers welcome
- Sponsor
- Beijing Tongren Hospital
Refractive Errors, Hyperopia
School-based Myopia Prevention Trial for Children With Insufficient Hyperopic Reserve
This is a prospective, school-based randomized controlled trial designed to evaluate auricular acupressure for myopia prevention in non-myopic primary school students with insufficient hyperopic reserve.
- Conditions
- Refractive Errors, Hyperopia, Myopia
- Trial name
- SPARK (NCT07746804)
- Testing
- Auricular Acupressure, Eye Health Education
- Where
- China
- Volunteers
- 130 people, healthy volunteers welcome
- Sponsor
- Shanghai Eye Disease Prevention and Treatment Center
Myopia, Progressive
Contact Lens and Myopia Control in Optometry School Students
The purpose of the study is to determine the effect of Natural View Multifocal lenses, a soft multifocal lens, on retardation of myopia in an optometric student population. Close up work (i.e.
- Trial name
- NCT04334369
- Testing
- Proclear Single Vision Contact Lenses manufactured by CooperVision, Proclear Multifocal Contact Lenses manufactured by CooperVision
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Jeff Rabin
High Myopia, Refractive Errors
Repeated Low-Level Red-Light Therapy for Shortening Axial Length
The purpose of this clinical trial is to confirm the incidence and magnitude of axial length shortening after RLRL therapy in Chinese high myopia children and teenagers.
- Conditions
- High Myopia, Refractive Errors, Eye Diseases
- Trial name
- NCT05550740
- Testing
- RLRL
- Where
- China
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Shanghai Eye Disease Prevention and Treatment Center
Myopia Progression, Axial Length, Eye
Low Dose Atropine Eye Drops in Myopic Egyptian Children
Previous Studies reported that low concentration atropine eye drops may be effective in increasing the choroidal blood flow and thickness and this slows myopia progression.
- Conditions
- Myopia Progression, Axial Length, Eye, Sclera Thickness
- Trial name
- LAMP (NCT06265454)
- Testing
- low dose atropine eye drops
- Where
- Egypt
- Volunteers
- 75 people
- Sponsor
- Ain Shams University
Astigmatism, Myopia
Effect of a Myopia Control Lens on the Astigmatism in Children
The goal of this clinical trial is to investigate over a one-year period the effect of myopia control spectacle lenses on astigmatism in children aged 6 to 13 years with myopia and astigmatism.
- Trial name
- MAC (NCT07810725)
- Testing
- Lenslet-based myopia control spectacle lens
- Volunteers
- 15 people
- Sponsor
- Essilor International
Hyperopia, Refractive Error
Optical Defocus to Stimulate Eye Elongation in Hyperopia
Axial hyperopia results when the length of the eye is too short for the eye to properly focus distance objects on the retina while the focusing system is relaxed.
- Trial name
- ODSEEH (NCT00950924)
- Testing
- Simultaneous Vision Bifocal Soft Contact Lenses, Single Vision Soft Contact Lenses
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Aller, Thomas A., OD
Myopia, Myopia Progression
The P.A.U.S.E.® Spectacle Study
The goal of this clinical trial is to learn if spectacle lenses using Phase Alteration Utilising Sub Elements (P.A.U.S.E.®) technology works to slow down the rate of myopia progression in myopic children.
- Trial name
- NCT06577948
- Testing
- Single vision spectacle lens, P.A.U.S.E. spectacle lens 1, P.A.U.S.E. spectacle lens 2
- Where
- Vietnam
- Volunteers
- 205 people
- Sponsor
- nthalmic Pty Ltd
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
High Myopia
SmoothCore Orthokeratology Plus M.O.V.E. Lenses vs. M.O.V.E. Lenses Alone for Myopia Control in Children With High Myopia
This clinical trial aims to determine whether a combination of overnight orthokeratology lenses and daytime myopia-control spectacles is more effective than myopia-control spectacles alone in slowing myopia progression and…
- Trial name
- NCT07854366
- Testing
- SmoothCore Technology Orthokeratology Combined with M.O.V.E. Lenses, M.O.V.E. Lenses Alone
- Volunteers
- 100 people
- Sponsor
- Beijing Tongren Hospital
Axial Length, Myopia
Study of the Intervention Effect of Outdoor Activity Period Patterns in Promoting Myopia Among Preschool Children
This study is a randomized controlled trial based on outdoor activity interventions at specific time periods, involving preschool children aged 4 to 5 years.
- Trial name
- NCT06607640
- Testing
- Increase outdoor activity time during specific time periods
- Volunteers
- 210 people, healthy volunteers welcome
- Sponsor
- Fangbiao Tao