Clinical trials: Error, Refractive
Juvenile Myopia, Myopia
CYPRESS Efficacy and Safety Study Extension
This is an open-label, controlled, multisite, two-arm parallel group clinical trial of 36-month duration to evaluate the continued safety and efficacy of SightGlass Vision Diffusion Optics Technology (DOT) Spectacles in reducing…
- Trial name
- CYPRESS (NCT04947735)
- Testing
- Novel spectacle lens design, Spectacle lenses
- Where
- 12 sites in United States, Canada
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- SightGlass Vision, Inc.
Myopia
The Effect of Orthokeratography on the Quality of Life and Behavior of Myopic Children
The study intended to observe the changes in the quality of life, behavior, and eye habits of children and adolescents aged 8-18 years before and after orthokeratology, as well as the differences in the quality of life and…
- Trial name
- NCT05956717
- Testing
- Orthokeratology
- Where
- China
- Volunteers
- 60 people
- Sponsor
- Tianjin Eye Hospital
Myopia, Myopia, Progressive
Study to Evaluate the Efficacy of Alleance® (Atropine Sulfate 0.01%) as a Treatment to Delay Myopia and Axial Ocular Elongation in Children.
Phase III clinical study to evaluate the efficacy of Alleance® (atropine sulfate 0.01%) ophthalmic solution through the incidence of unexpected adverse events, changes in Best Corrected Visual Acuity (BCVA), changes in…
- Trial name
- NCT06389110
- Testing
- Alleance®
- Where
- Mexico
- Volunteers
- 123 people, healthy volunteers welcome
- Sponsor
- Laboratorios Sophia S.A de C.V.
Myopia, Progressive
Myopia Progression With Freeform Myopia Control Spectacles
This is a prospective, randomized clinical trial. There will be a total of 180 participants randomized into three groups, Group 1 - 60 participants will wear the commercial peripheral plus myopia control lens (CML).
- Trial name
- NCT06927388
- Testing
- freeform myopia control spectacles, Commercial myopia control spectacle lens (CML)
- Where
- China
- Volunteers
- 180 people, healthy volunteers welcome
- Sponsor
- Shanghai Eye Disease Prevention and Treatment Center
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
Refractive Errors
Post-market Clinical Follow-up Study of Alcon PRECISION1™ Spherical and PRECISION1™ for Astigmatism Soft Contact Lenses
The purpose of this study is to assess long term performance and safety of verofilcon A soft contact lenses in a real-world setting in a population of 7 years or older having at least 1 year of verofilcon A (sphere or toric)…
- Trial name
- NCT06462456
- Testing
- Verofilcon A spherical soft contact lenses, Verofilcon A toric soft contact lenses
- Where
- 12 sites in United States
- Volunteers
- 140 people
- Sponsor
- Alcon Research
Myopia, Large Language Model
Development and Validation of a Large Language Model-based Myopia Assistant System
Myopia is a rapidly growing global health concern, and there is an urgent need for advanced tools that can facilitate personalized healthcare strategies.
- Trial name
- NCT06607822
- Testing
- A patient-centered assistant system based on Large-Language Model (LLM)
- Where
- China
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University
Myopia
Clinical Evaluation of a Myopia Control Lens in Slowing Myopia Progression (CSL)
This is a mono-centre, prospective, one-arm, unmask clinical trial to evaluate the effectiveness of test lens in slowing myopia progression with respect to axial length elongation compared to a single vision spectacle lens from…
- Trial name
- NCT05724186
- Testing
- Test myopia control lenses (CSL)
- Where
- Singapore
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Essilor International
Induced Defocus to the Retina
Defocus Induced Changes on Choroidal Thickness
The goals of this study are to assess the short-term (10-60 minutes) effects of different magnitudes of myopic and hyperopic optical defocus on the transient thickness of the choroid in children and adults, as well as to assess…
- Trial name
- NCT03954886
- Testing
- Plus powered optical lens
- Where
- United States
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- University of Houston
Myopia
Echothiophate Iodide for the Prevention of Progression of Myopia
The purpose of this study is to test the hypothesis that myopia progression can be slowed or prevented by low dose Echothiophate Iodide.
- Trial name
- NCT02544529
- Testing
- Echothiophate Iodide 0.03% Ophthalmic Solution, Carboxymethylcellulose Sodium (0.5%)
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Danbury Eye Physicians & Surgeons, PC
Macula Hole, Retinal Detachment
Amniotic Membrane for Recurrent Macular Hole
Macular hole surgery were tried by different surgeons using many techniques with different successes but still there were many recurrences.
- Conditions
- Macula Hole, Retinal Detachment, Myopic Macular Degeneration
- Trial name
- NCT03528122
- Testing
- Recurrent opened macular hole
- Where
- Egypt
- Volunteers
- 20 people
- Sponsor
- Minia University
Under- and Uncorrected Significant Refractive Errors
Effectiveness of Alternative Approaches to Providing Spectacles in Tanzanian Secondary School Students
The aim of this study was to compare the effectiveness of two interventions, namely providing free spectacles or only a prescription to students with insufficiently corrected or uncorrected significant refractive errors.
- Trial name
- NCT00249275
- Testing
- spectacles
- Where
- Tanzania
- Volunteers
- 250 people
- Sponsor
- London School of Hygiene and Tropical Medicine
Astigmatism, Myopia
Short-term Study of Two Soft Contact Lenses in Wearers With Low Astigmatism
The primary objective of the study is to evaluate and compare the performance of two soft contact lens.
- Conditions
- Astigmatism, Myopia, Hyperopia
- Trial name
- NCT06873048
- Testing
- Control Contact Lens (stenfilcon A Sphere), Test Contact Lens (stenfilcon A Toric)
- Where
- Canada
- Volunteers
- 32 people
- Sponsor
- CooperVision International Limited (CVIL)
Vision Loss
First-Sight Refractive Error Correction in the Developing World
The aim of this study is to test the efficacy of the First-Sight refractive kit designed to provide refractive correction of simple hyperopia, myopia and astigmatism with autorefraction.
- Trial name
- NCT01598818
- Where
- 2 sites in United States, Haiti
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- University of Nebraska
Myopia, Progressive
Choroidal Response to Novel Spectacle Lens to Control Myopia Progression
Diurnal variations in the thickness of the choroid have been reported in the literature, and, more recently, the role of the choroid has been studied with respect to its role in myopia (near-sightedness) progression.
- Trial name
- CHERRY (NCT03818880)
- Testing
- Novel spectacle lens design
- Where
- Canada
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- SightGlass Vision, Inc.
Axial Length, Eye, Myopia
Study on the Impact of Desk and Chair Adaptation Intervention on the Occurrence and Development of Myopia in Primary School Students
This study is a randomized controlled trial of a desk and chair adaptation intervention involving primary school students and their parents or primary caregivers.
- Conditions
- Axial Length, Eye, Myopia, Myopia Progression
- Trial name
- NCT06623760
- Testing
- Desk and chair adaptation interventions
- Volunteers
- 2,100 people, healthy volunteers welcome
- Sponsor
- Fangbiao Tao
Myopia, Myopia Progression
Evaluation of Performance of MiYOSMART Photochromic and Clear Spectacle Lenses in Myopic Children
This clinical study aims to evaluate the non-inferiority of the photochromic DIMS spectacles lenses performance (PDIMS) compared to clear DIMS spectacles lenses (DIMS) in myopia management.
- Trial name
- PDIMS (NCT06717035)
- Testing
- EYE001
- Where
- Singapore
- Volunteers
- 202 people
- Sponsor
- Singapore National Eye Centre
Myopia
The Efficacy and Safety of Periocular Acupoint Stimulation on Myopia Progression in Children
Myopia is widely one of the three commonly detected refractive errors. Myopia is usually managed by correction through glasses or contact lenses. Other alternative available include surgery, drugs and acupuncture.
- Trial name
- NCT02064660
- Testing
- massager
- Where
- South Korea
- Volunteers
- 20 people
- Sponsor
- Korean Medicine Hospital of Pusan National University
Myopia
Myopia Control: a Comparison Study Between Atropine and MiSight
This research project aims to provide additional knowledge of pharmacological and optical methods of myopia control and to gain a better understanding of the biometry of the pediatric eye, which contributes to the onset and…
- Trial name
- NCT05815784
- Testing
- Atropine, MiSight contact lenses
- Where
- United States
- Volunteers
- 348 people
- Sponsor
- Ann & Robert H Lurie Children's Hospital of Chicago
Pre-myopia, Myopia
Managing Premyopia in Chinese Children Using Artificial Intelligence Assisted Defocus Incorporated Multiple Segments Based Spectacle Lens: a Randomized Controlled Clinical Trial
Pre-myopia refers to a condition in which children have not yet developed myopia but exhibit insufficient hyperopic reserve (≤ +0.75 D).
- Trial name
- NCT07765550
- Testing
- Artificial Intelligence Assisted DIMS based Spectacle Lens, Smartwatches
- Where
- China
- Volunteers
- 128 people
- Sponsor
- Shanghai Eye Disease Prevention and Treatment Center