Clinical trials: Axial Length, active
Myopia, Myopia Progression
Comparing Myopia Control Spectacle Lenses and Standard Single Vision Spectacle Lenses in Children With Myopia
The purpose of this clinical trial is to compare a new myopia control spectacle lens with a standard single vision spectacle lens in slowing the progression of myopia (nearsightedness) in healthy children aged 6 to under 11…
- Trial name
- PEARL (NCT07839091)
- Testing
- Investigational Myopia Control Spectacle Lens, Single Vision Spectacle Lens
- Where
- Singapore
- Volunteers
- 20 people
- Sponsor
- Essilor International
Congenital Cataract
Guangke Lenses in Congenital Cataract
This study aims to investigate whether individually customized bifocal + defocus spectacles can slow myopic shift in children after congenital cataract surgery.
- Trial name
- NCT07778797
- Testing
- Conventional Bifocal Lenses, Individually Customized Bifocal + Defocus Lenses
- Where
- China
- Volunteers
- 50 people
- Sponsor
- Eye & ENT Hospital of Fudan University
Myopia
A Controlled Evaluation of Optical Defocus Parameters on Transient Changes in Axial Length Using Kubota Glass
This study will assess the optimal performance characteristics of optical defocus on transient changes in axial length with Kubota Glass, using a randomized, double-masked, 5-treatment, 5-period crossover design with…
- Trial name
- NCT07686289
- Testing
- KG1, KG2, KG3
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- Kubota Vision Inc.
Myopia
Clinical Investigation of a Novel Spectacle Lens on Slowing Down Juvenile Myopia Progression
The goal of this exploratory clinical trial is to evaluate the efficacy and safety of a test spectacle lens (standard single vision lens (SVL) during first year, and standard myopia control lens (MCL) in second year), designed…
- Trial name
- NCT06850168
- Testing
- SVL, SVL with passive red-light emission, MCL
- Where
- Singapore
- Volunteers
- 35 people
- Sponsor
- Essilor International
Myopia, Refractive Errors
School-based Myopia Control Trial for Children With Premyopia or Myopia
This is a prospective, school-based randomized controlled trial designed to evaluate auricular acupressure combined with defocus spectacle lenses for myopia control in primary school students with premyopia or myopia.
- Trial name
- SPARK (NCT07746778)
- Testing
- Defocus Spectacle Lenses, Auricular Acupressure
- Where
- China
- Volunteers
- 358 people
- Sponsor
- Shanghai Eye Disease Prevention and Treatment Center
Myopia, Myopia Progression
The A.R.R.E.S.T.® Spectacle Film Study
The goal of this clinical trial is to learn if spectacle films using Active Reconfiguration in Retinal Encoding of Spatio-Temporal (A.R.R.E.S.T.®) signal technology works to slow down the rate of myopia progression in myopic…
- Trial name
- NCT06692699
- Testing
- Single vision spectacle lens, A.R.R.E.S.T. spectacle film
- Where
- Vietnam
- Volunteers
- 123 people
- Sponsor
- nthalmic Pty Ltd
Axial Length, Myopia
China Children Eye Study
The primary objective of this multi-center, observational study is to establish the reference ranges of axial length in Chinese children and adolescents.
- Conditions
- Axial Length, Myopia, Child Development
- Trial name
- CCES (NCT05770661)
- Where
- 2 sites in China
- Volunteers
- 30,000 people, healthy volunteers welcome
- Sponsor
- Shanghai Eye Disease Prevention and Treatment Center
Pseudophakia, Refractive Error
IOL Power Formula Prediction Accuracy at the Extremes of Axial Length: A Prospective Outcome Verification Study
This single-center, prospective, cross-sectional study evaluates how accurately eight modern intraocular lens (IOL) power calculation formulas predicted the postoperative refractive result in eyes with extreme axial length after…
- Trial name
- FORMULEX-OV (NCT07724795)
- Testing
- Standardized postoperative outcome visit
- Where
- Austria
- Volunteers
- 200 people
- Sponsor
- Vienna Hospital Association
Myopia
Study Comparing Eye Growth Over Time in Children Using Two Myopia Control Lenses
The goal of this clinical trial is to investigate the short-term changes in the eye structure while wearing two types of lenslet-based myopia control lenses over a period of 6 months in children aged 6 to 13 years with myopia.
- Trial name
- NCT07253064
- Testing
- MCL 1, MCL 2
- Where
- Singapore
- Volunteers
- 20 people
- Sponsor
- Essilor International
Myopia
Myopia Control Effect of DIMS Spectacle Lenses in Czech Children and Young Adults
The aim of this clinical study is to compare the efficacy of DIMS technology spectacle lenses with conventional single vision spectacle lenses at slowing the progression of myopia in the category of children and young adults…
- Trial name
- NCT05943912
- Testing
- Single Vision Spectacle Lens, Defocus Incorporated Multiple Segments (DIMS) Spectacle Lens
- Where
- Czechia
- Volunteers
- 80 people
- Sponsor
- Czech Technical University in Prague
Refractive Errors
Clinical Validation Study Protocol for SmartEyes Smart Optometry Measurement Device (Medical Device Clinical Validation Study)
This study aims to evaluate the SmartEyes smart refraction measurement device in two phases under real outpatient optometry room visits at Wuhan Children's Hospital.
- Trial name
- CVSP-SOMD (NCT07803094)
- Testing
- SmartEyes smart refraction measuring device, Topcon KR800, Subjective refraction
- Volunteers
- 200 people
- Sponsor
- The Hong Kong Polytechnic University
Progressive Myopia
MAD Trial: Myopia Atropine Dose
The goal of this interventional study is to compare the efficacy of Atropine 0.05% to Atropine 0.5% treatment against progression of axial length in European children with progressive myopia, and to evaluate the safety…
- Trial name
- MAD (NCT05667454)
- Testing
- Atropine Ophthalmic 0.05%, Atropine Ophthalmic 0.5%
- Where
- 20 sites in Netherlands
- Volunteers
- 550 people
- Sponsor
- Erasmus Medical Center
Myopia Progression, Myopia
Inhibition of Myopia Progression With Optical Devices
This observational study aims to determine whether optical devices designed to slow myopia progression and/or environmental factors can prevent myopia progression in the pediatric and adolescent myopic population.
- Conditions
- Myopia Progression, Myopia, Myopia, Child Myopia Progression
- Trial name
- NCT07698977
- Testing
- Wearing myopia-control D.I.M.S. glasses while awake, DIMS (Defocus Incorporated Multiple Segments) lenses
- Where
- Hungary
- Volunteers
- 50 people
- Sponsor
- Semmelweis University
Refractive Errors
Measurment of Optic Disc Parameters, RNFL Thickness and Ganglion Cell Complex in Myopic, Hypermetropic and Emmetropic Patients Using OCT and Axial Length Measurments
To evaluate the optic disc parameters, thickness of ganglion cell complex (GCC), and thickness of peripapillary retinal nerve fiber layer (RNFL) in myopic and hyperopic and emmetrop patients using optical coherence tomography…
- Trial name
- NCT07241806
- Testing
- OCT
- Volunteers
- 266 people, healthy volunteers welcome
- Sponsor
- Assiut University
Hypertensive Complication
Evaluation Of Effect of Axial Length on Cup-To-Disc Ratio Among Non- Glaucomatous Hypertensive Patients
This observational cross-sectional study aims to compare the effect of axial length on the cup-to-disc ratio in non-glaucomatous hypertensive patients.
- Trial name
- NCT06913478
- Where
- Pakistan
- Volunteers
- 94 people
- Sponsor
- Superior University
Myopia, Progressive
Stellest Lens Wear in Adult Progressing Myopes
It is expected that myopia progression stabilises in the late teenage years, however, some studies report that myopia progression continues through early adulthood in as many as one third of myopes.
- Trial name
- SWAP (NCT06520124)
- Testing
- Essilor® Stellest® spectacle lens, Single-vision spectacle lens
- Where
- United Kingdom
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- University of Ulster
Focus on Axial Length
The Effect of 0.01% Atropine Eye Drops on Axial Length and Refraction in Myopic Children Compared to a Control Group
In this study, atropine 0.01% eye drops will be given to myopic children once at night daily for 6 months as compared to a control group to see the effect on axial length and refraction
- Trial name
- NCT07456488
- Testing
- Atropine 0.01% eye drops
- Where
- Pakistan
- Volunteers
- 60 people
- Sponsor
- Liaquat National Hospital & Medical College
Myopia Progressing, Myopia
Effect of Branched-Chain Amino Acid Supplementation on Myopia Progression
This study is a randomized controlled trial designed to evaluate whether branched-chain amino acid (BCAA) supplementation can help slow the progression of myopia in young adults.
- Trial name
- NCT07585877
- Testing
- Branched-Chain Amino Acids (BCAA) Supplementation
- Where
- China
- Volunteers
- 104 people, healthy volunteers welcome
- Sponsor
- Zhongda Hospital
Anisometropia, Myopia
Targeted Lens Intervention for Myopic Anisometropia in Children
The goal of this clinical trial is to learn if our research spectacles will lower the difference in prescription (spectacles degree) between the eyes in children between 6 to 13 years old with anisometropic myopia.
- Trial name
- NCT07533149
- Testing
- More myopic eye: MCL1; Less myopic eye: MCL2
- Where
- Singapore
- Volunteers
- 20 people
- Sponsor
- Essilor International
Children, Hyperopia
Efficacy of S.T.O.P®KIT in Retarding Axial Length Growth in Children With Low Hyperopia
This is a multicenter, parallel-group, open-label, randomized controlled, superiority interventional clinical study initiated by investigators from Shanghai General Hospital (Study Protocol No.: IT-CRU-FAMB-001, Version V1.1…
- Trial name
- NCT07401511
- Testing
- Attaching different phase Dynamic Spatiotemporal Optical Films (S.T.O.P® KIT) when wearing spectacle frames
- Where
- 3 sites in China
- Volunteers
- 180 people, healthy volunteers welcome
- Sponsor
- Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine