Clinical trials: High Myopia
High Myopia
The Effect and Safety of Different Doses of Atropine on Myopic Progression of Highly Myopic Children: Multi-centered Randomized Clinical Trial
Objective: to evaluate the efficacy of different concentrations of atropine eye drops in controlling the progression (diopter, axial length) of high myopia in young children, and to compare the compliance, adverse reaction and…
- Trial name
- NCT04699357
- Testing
- Atropine
- Where
- 3 sites in China
- Volunteers
- 219 people
- Sponsor
- Shanghai Eye Disease Prevention and Treatment Center
Capsule Opacification, Tissue Adhesions
Evaluate Capsular Apposition to Intraocular Lens
In this study, the investigators examined the capsule-IOL interaction including anterior and posterior capsule adhesion, contact between posterior capsule and the posterior edge of intraocular lense (IOL), configuration of…
- Conditions
- Capsule Opacification, Tissue Adhesions, Aphakia - Lens Capsule Present, Opacification of Intraocular Lens
- Trial name
- NCT01605812
- Where
- China
- Volunteers
- 150 people
- Sponsor
- Wenzhou Medical University
Diabetic Retinopathy (DR), Retinal Vein Occlusion (RVO)
High-throughput Large-model-based AI-assisted Diagnosis Using OCT
This observational study aims to establish key technologies for high-throughput, large-model-based AI-assisted diagnosis using optical coherence tomography (OCT) and OCT angiography (OCTA).
- Conditions
- Diabetic Retinopathy (DR), Retinal Vein Occlusion (RVO), Age-Related Macular Degeneration (AMD), Pathologic Myopia
- Trial name
- NCT07249307
- Testing
- No intervention
- Volunteers
- 2,000 people
- Sponsor
- Peking Union Medical College Hospital
Keratoconus, High Myopia
Anterior Segment and Corneal Parameters in Keratoconus and High Myopic Astigmatism Using Schiempflug Imaging
The purpose of this study was to compare Scheimpflug corneal tomography findings in keratoconus and high myopic astigmatic eyes, as well as to establish the parameters distinguishing keratoconus from high myopic astigmatism.
- Trial name
- NCT06739018
- Testing
- pentacam scheimpflug tomography
- Where
- 2 sites in Egypt
- Volunteers
- 66 people
- Sponsor
- Assiut University
Macular Holes, High Myopia
Effects of Macular Buckle Versus Vitrectomy on Macular Hole and Macular Detachment in Highly Myopic Eyes
Full-thickness macular Hole associated with macular detachment is a one of the maculopathies of high myopia. There is controversy in the primary treatment for this situation.
- Conditions
- Macular Holes, High Myopia, Macular Detachment
- Trial name
- NCT03433547
- Testing
- Buckle, Vitrectomy, Limbal paracentesis
- Where
- China
- Volunteers
- 50 people
- Sponsor
- Sun Yat-sen University
High Myopia, Cataract
The Role of Capsular Tension Rings in Intraocular Lens Stability in High Myopia Cataract Patients: A Prospective Self-Controlled Study
Study Purpose: This prospective, self-controlled clinical study aims to evaluate the impact of capsular tension rings (CTR) on intraocular lens (IOL) stability in high myopia patients undergoing bilateral cataract surgery.
- Trial name
- NCT07052825
- Testing
- CTR implantation
- Where
- China
- Volunteers
- 120 people
- Sponsor
- Jin Yang
High Myopia
Development and Pathological Changes of High Myopia Among Children and Adolescents in China
The study aims to observe the relationship between the changes of ocular structure parameters and pathological changes among children and adolescents with high myopia.
- Trial name
- NCT03533647
- Testing
- Observational
- Where
- China
- Volunteers
- 1,400 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Myopic Choroidal Neovascularisation
OCTA Changes in Choroidal Neovascularization in High Myopia
To Analyze the Ability of Optical Coherence Tomography Angiography ( OCT-A ) to detect the presence of myopic Choroidal Neovascularization and to describe the structural features of Myopic CNV..
- Trial name
- NCT06357559
- Testing
- OCTA
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Sohag University
High Myopia, Posterior Staphyloma
Macular Buckle With Three-armed Silicone
High myopia is characterized by prolonged axial length and posterior staphyloma, which result in choroid-retinal degeneration and vision decrease.
- Trial name
- MBTAS (NCT02169635)
- Testing
- macular buckle
- Where
- China
- Volunteers
- 11 people
- Sponsor
- Sun Yat-sen University
Myopia, High Myopia
Orthokeratology for High Myopia (OHM) Study
This project aims to investigate/examine high myopic subjects on full correction ortho-k (using Topaz ortho-k lenses for high myopia) compared to subjects undergoing partial reduction ortho-k and their relationship with myopia…
- Trial name
- NCT03881358
- Testing
- ortho-k lenses and thinner spectacles, newly designed ortho-k lenses
- Where
- Hong Kong
- Volunteers
- 66 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University
Myopia, Choroidal Neovascularization
Efficacy and Safety of Intravitreal Bevacizumab in the Treatment of Choroidal Neovascular Membranes Associated to High Myopia
The purpose of this study is to determine the efficacy and safety of intravitreal injections of bevacizumab in High Myopia´s choroidal neovascularization versus the standard treatment of Photodynamic therapy.
- Trial name
- NCT00967850
- Testing
- Intravitreal Injection, Photodynamic Therapy (Visudyne)
- Where
- 7 sites in Spain
- Volunteers
- 56 people
- Sponsor
- Instituto Universitario de Oftalmobiología Aplicada (Institute of Applied Ophthalmobiology) - IOBA
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
High Myopia
Accuracy of Intraocular Lens Power in High Myopia
evaluation of the accuracy of iol power in high myopia using different biometry formula \& iol master
- Trial name
- NCT03394300
- Testing
- iol power calculation
- Volunteers
- 30 people
- Sponsor
- Assiut University
Myopia, Refractive Ametropia
Comparison of Low- Versus High-Level Angle Kappa Compensation Strategies in SMILE Using the VisuMax 800: A Randomized Clinical Trial
The goal of this clinical trial is to compare two intraoperative kappa-angle compensation strategies during small incision lenticule extraction (SMILE) using the VisuMax 800 platform in patients with relatively large kappa-angle…
- Trial name
- NCT07512102
- Testing
- Apply high compensation to the Kappa angle., Apply low compensation to the Kappa angle.
- Where
- China
- Volunteers
- 100 people
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Soft Contact Lenses, Myopia
DAILIES TOTAL1 Versus ACUVUE TruEye - Effects on the Biology of the Ocular Surface and Lid Margin
This is a prospective, single center, randomized, bilateral crossover, dispensing clinical trial to evaluate the effects of the water gradient lens, DAILIES TOTAL1, on the biology of corneal epithelium over two months of daily…
- Trial name
- TruEyeTotal1 (NCT02347631)
- Testing
- Soft Contact Lens - Daily Disposable Alcon Dailies Total 1 and ACUVUE TruEye, Soft Contact Lens - Acuvue TruEye and Alcon DAILIES TOTAL 1.
- Where
- United States
- Volunteers
- 118 people, healthy volunteers welcome
- Sponsor
- University of Texas Southwestern Medical Center
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
Myopia, Refractive Errors
VisuMax Femtosecond Laser Small Incision Lenticule Extraction for the Correction of High Myopia
The purpose of this study is to validate the safety and effectiveness of treating myopia (short-sightedness) higher than -10D using small incision lenticule extraction (SMILE) with the VisuMax femtosecond laser.
- Trial name
- NCT02528123
- Testing
- Small incision lenticule extraction, Tobramycin and dexamethasone, Ofloxacin
- Where
- United Kingdom
- Volunteers
- 114 people, healthy volunteers welcome
- Sponsor
- London Vision Clinic
Myopia
Study of the MEL 80 Excimer Laser Using LASIK in the Treatment of Moderate to High Myopia
The purpose of this study is to determine whether the MEL 80 Excimer Laser is effective in the treatment of moderate to high myopia (nearsightedness), when used as part of the Laser In Situ Keratomileusis (LASIK) procedure.
- Trial name
- NCT00762541
- Testing
- MEL 80 Treatment of High Myopia
- Where
- 5 sites in United States
- Volunteers
- 129 people, healthy volunteers welcome
- Sponsor
- Carl Zeiss Meditec, Inc.
Intraocular Pressure,, Postoperative Complications
Primary Vitrectomy for the Treatment of Retinal Detachment in Highly Myopic
Purpose: To assess the functional and anatomical outcome of primary vitrectomy without scleral buckling for rhegmatogenous retinal detachment (RRD) in highly myopic eyes with axial length over 30 mm.
- Trial name
- NCT01480505
- Testing
- Pars plana vitrectomy with gas tamponade
- Where
- France
- Volunteers
- 840 people
- Sponsor
- Centre Hospitalier Universitaire Dijon
Myopia, Hyperopia
Clinical Investigation of the Vision-R800 Device.
Randomized, bilateral, cross-over dispensing study of a standard and VR800 refraction and associated spectacle lenses.
- Conditions
- Myopia, Hyperopia, Astigmatism, Presbyopia
- Trial name
- NCT04208750
- Testing
- Vision R-800 Phoropter, Standard Phoropter
- Where
- United States
- Volunteers
- 119 people, healthy volunteers welcome
- Sponsor
- Pete Kollbaum, OD, PhD