Clinical trials: Refractive Disorders, open to volunteers
Myopia
Efficacy of Myopia-control Lenses in a Population of Young Adults : the OPTIMA Study
The goal of this clinical trial is to learn if myopia-control eyeglass lenses (Essilor® Stellest® 2.0) can slow down the progression of short-sightedness (myopia) in young adults, compared with standard single-vision lenses.
- Trial name
- OPTIMA (NCT07804043)
- Testing
- Essilor® Stellest® 2.0 myopia-slowing lenses, Standard lenses
- Where
- France
- Volunteers
- 134 people
- Sponsor
- Fondation Ophtalmologique Adolphe de Rothschild
Contact Lens Comfort and Successful Refitting, Presbyopia
Refitting Satisfied INFUSE One-Day Multifocal Wearers to DAILIES TOTAL1 Multifocal Contact Lenses
The purpose of this study is to determine the comfort and vision of DAILIES TOTAL1 Multifocal contact lenses in a population of satisfied INFUSE One-Day Multifocal contact lens wearers
- Trial name
- INFUSETODT1 (NCT07638943)
- Testing
- DAILIES TOTAL1 Multifocal (delefilcon A)
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Gordon Schanzlin New Vision
Posterior Capsule Opacification, Pseudophakia
IOL Position and Refractive Change After Nd:YAG Laser Posterior Capsulotomy
After cataract surgery, the thin natural membrane that holds the artificial lens in place can slowly turn cloudy. This is called posterior capsule opacification. It makes vision blurry and can cause glare.
- Conditions
- Posterior Capsule Opacification, Pseudophakia, Refractive Errors
- Trial name
- YAG-IOL-POS (NCT07802145)
- Testing
- Nd:YAG laser posterior capsulotomy, Anterior segment swept-source OCT, Swept-source optical biometry
- Where
- Austria
- Volunteers
- 80 people
- Sponsor
- Vienna Hospital Association
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
Visual Acuity, Refractive Errors
Assessing the Turkish DDIVAT for Visual Acuity Measurement
The goal of this observational methodological study is to validate the Turkish version of the DDIVAT visual acuity measuring device in a Turkish-speaking adult population.
- Conditions
- Visual Acuity, Refractive Errors, Myopia, Hyperopia
- Trial name
- NCT07240480
- Testing
- DDIVAT Visual Acuity Test (Turkish Version)
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Trakya University
Cataract, Refractive Error
Community-Based Eye Screening With Structured Referral Tracking for Preventing Avoidable Blindness in Adults in Rawalpindi, Pakistan
This cluster randomized controlled trial aims to evaluate the effectiveness of a Structured Referral Tracking (SRT) intervention in improving referral completion among adults identified with avoidable blindness during…
- Conditions
- Cataract, Refractive Error, Diabetic Retinopathy
- Trial name
- SIGHT (NCT07611682)
- Testing
- Structured Referral Tracking (SRT)
- Where
- Pakistan
- Volunteers
- 500 people
- Sponsor
- Health Services Academy, Islamabad, Pakistan
Myopia, Progressive, Choroid Disease
Choroidal Change on OCTA in Eyes With High Myopia
Myopia is a global healthy concern, especially the high myopia and pathological myopia among Asian populations. However, its mechanism still remains largely unclear.
- Trial name
- NCT04255524
- Testing
- Optic coherence tomography angiography (OCTA)
- Where
- China
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- The First Affiliated Hospital with Nanjing Medical University
Age Related Cataracts, Astigmatism
Rotation of Hydrophobic Acrylic Lenses - Rayner RA0800C & Alcon Clareon & Hoya Nanex & Hoya Vivinex XY1-EM & RayOne EMV Toric & PODEYE Toric
The investigational devices are approved intraocular lenses (IOL) intended to be implanted after phacoemulsification in individuals suffering from age-related cataract with the need of cataract surgery.
- Trial name
- NCT03803852
- Testing
- Intraocular Lens Implantation
- Where
- Austria
- Volunteers
- 750 people
- Sponsor
- Medical University of Vienna
Myopia
Atropine (0.02%, 0.04%) Combined With Defocus DIMS for Moderate and High Myopia Control
To evaluate the effectiveness and safety of DIMS, low concentration atropine eye drops,and atropine combined with DIMS in controlling axial length and refraction in children with moderate to high myopia.
- Trial name
- atropine (NCT06523504)
- Testing
- DIMS, The 0.02% ATP Group, The 0.04% ATP Group
- Where
- China
- Volunteers
- 410 people
- Sponsor
- Ruihua Wei
Myopia
Delaying the Onset of Nearsightedness Until Treatment (DONUT) Clinical Trial
The aims of this clinical trial will test whether or not the onset of nearsightedness is delayed in a group of children randomized to nightly drops in 0.05% atropine in both eyes, in comparison to children who receiving nightly…
- Trial name
- DONUT (NCT07567040)
- Testing
- Atropine Sulfate 0.05% Oph Soln
- Where
- 13 sites in United States
- Volunteers
- 664 people, healthy volunteers welcome
- Sponsor
- Ohio State University
Multiple Sclerosis, Dry Eye Syndromes
Clinical Applications of Advanced Ophthalmic Imaging
The purpose of this study is to determine the clinical application of advanced ophthalmic imaging devices such as optical coherence tomography (OCT), retinal function imager (RFI), slit-lamp biomicroscopy (SLB), PERG in diseased…
- Conditions
- Multiple Sclerosis, Dry Eye Syndromes, Diabetic Retinopathy, Presbyopia
- Trial name
- NCT03135327
- Testing
- Ocufolin
- Where
- United States
- Volunteers
- 5,000 people, healthy volunteers welcome
- Sponsor
- University of Miami
Astigmatism
Clinical Performance and Outcomes After Toric Lens Transition
To evaluate subjective and clinical outcomes after transitioning from one toric soft contact lens to another over a one-month period.
- Trial name
- NCT07898995
- Testing
- Fanfilcon A Toric Contact Lens
- Where
- United States
- Volunteers
- 35 people
- Sponsor
- CooperVision International Limited (CVIL)
Myopia
Electronic Spectacles Versus Low Dose Atropine in Young Myopes
This is a bilateral, dispensing, masked, randomized clinical trial. Myopic children will be randomly assigned to one of the following: (1) Investigational clinical prototype (CP1) device without atropine, (2) Investigational CP1…
- Trial name
- NCT06034379
- Testing
- eSpectacle Clinical prototype (CP1) device, 0.01% atropine
- Where
- Taiwan
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- Kubota Vision Inc.
Myopia, Progressive
Efficacy of IVMED-85 on Pediatric Myopia
The goal of this clinical trial is to evaluate the safety and preliminary efficacy of a 1-year course of IVMED-85 eye drops for the treatment of pediatric myopia by assessing its safety effects on visual acuity and its effect on…
- Trial name
- NCT05761795
- Testing
- IVMED 85
- Volunteers
- 216 people
- Sponsor
- iVeena Delivery Systems, Inc.
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
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, High Myopia
Clinical Results of Small Incision Lenticule Extraction (SMILE) for the Correction of High Myopia
Small Incision Lenticule Extraction (SMILE) was introduced in 2011 using the VISUMAX femtosecond laser (Carl Zeiss Meditec, Jena, Germany). It is designed for correction of myopia and myopic astigmatism.
- Trial name
- NCT04110067
- Testing
- Small Incision Lenticule Extraction (SMILE) with Visumax (Carl Zeiss Meditec, Jena)
- Where
- Germany
- Volunteers
- 5,000 people, healthy volunteers welcome
- Sponsor
- Suphi Taneri
Amblyopia
Psilocybin for Amblyopia - Targeting Critical Periods in Humans
The purpose of this study is to evaluate whether ingestion of a drug called psilocybin can increase the effectiveness of amblyopia therapy in adults with amblyopia.
- Trial name
- PATCH (NCT07920081)
- Testing
- Amblyopia Therapy, 1 mg Psilocybin, 5 mg Psilocybin
- Where
- United States
- Volunteers
- 24 people
- Sponsor
- Johns Hopkins University
Refractive Errors
Cognitive Level Enhancement Through Vision Exams and Refraction
The investigators aim to conduct a mixed-method study in which a randomised controlled trial (RCT) and a descriptive qualitative study will be conducted.
- Trial name
- CLEVER (NCT05458323)
- Testing
- Free near and Distance Vision glasses
- Where
- India
- Volunteers
- 820 people
- Sponsor
- Queen's University, Belfast