Clinical trials: High Myopia
Myopia, High-Grade, Myopia; Refractive Error
AOSLO-Based Precise Measurement of Retinal Hemodynamics: Development and Application Assessment
Changes in retinal hemodynamics play a key role in the development of various eye diseases. Currently, mainstream hemodynamic evaluation techniques have low resolution and poor measurement accuracy, limiting their widespread…
- Trial name
- NCT07051317
- Volunteers
- 120 people
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
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
High Myopia, Posterior Scleral Reinforcement
Efficacy and Safety of Posterior Scleral Reinforcement on Controlling Myopia in Adults With High Myopia
This study will evaluate the efficacy and safety of posterior scleral reinforcement on controlling myopia progression, including change in refraction, axial elongation as well as sight-threatening complications, in adults with…
- Conditions
- High Myopia, Posterior Scleral Reinforcement, Adults, Axial Elongation
- Trial name
- NCT03381079
- Testing
- Posterior scleral reinforcement
- Volunteers
- 120 people
- Sponsor
- Beijing Tongren Hospital
Refractive Errors
Correcting Myopia Among Secondary School Children to Increase Academic High School Attendance Rates in Rural Communities
Chinese children are some of the most short-sighted in the world, but only one in five children in poor areas who needs glasses has them.
- Trial name
- SWISH (NCT04077086)
- Testing
- Spectacles
- Where
- 3 sites in China, United Kingdom
- Volunteers
- 10,000 people
- Sponsor
- Queen's University, Belfast
Myopia, Myopic Astigmatism
Laser In-situ Keratomileusis With Crosslinking Compared to Conventional LASIK in Patients With High Myopia
The objectives of this study are to evaluate the safety and efficacy of a treatment regimen for high myopia and myopic astigmatism: LASIK followed by crosslinking performed with the KXL Crosslinking-System and VibeX Xtra…
- Conditions
- Myopia, Myopic Astigmatism, Crosslinking, Corneal Ectasia
- Trial name
- NCT03913338
- Testing
- LasikXtra, LASIK
- Where
- Germany
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- University Clinic Frankfurt
Macular Schisis
A Prospective Multicenter Study of Different Surgical Methods in the Treatment of High Myopic Macular Schisis
In view of the current problem of treating high myopic macular schisis, the main purpose of our study is to find out the most appropriate time of surgical intervention, to compare the effectiveness and safety of various surgical…
- Trial name
- Recovery (NCT04146350)
- Testing
- PPV+/-Cat, PPV+/-Cat+Gas, PPV+ILM+/-Cat+/-Gas
- Where
- China
- Volunteers
- 400 people
- Sponsor
- Aier School of Ophthalmology, Central South University
Cataract
A Dynamic Study of Pupil Diameter After Artificial Lens Implantation in Patients With High Myopia
Age-related cataract remains the leading cause of blindness in developing countries. And, with the aging of the population in these countries, the number of cataract patients will continue to grow.
- Trial name
- NCT06505434
- Testing
- Cataract surgery
- Volunteers
- 60 people
- Sponsor
- Shanghai Eye Disease Prevention and Treatment Center
High Myopia
Genetic Research on High Myopic Individuals in Northern China
HM, which can dramatically cripple the eyesight of those affected, is a rampant ophthalmic disorder around the globe. It is in recent years that substantial studies covering the relationship between distinct variations and HM…
- Trial name
- NCT06204211
- Testing
- ophthalmologic examinations
- Where
- China
- Volunteers
- 1,340 people, healthy volunteers welcome
- Sponsor
- The First Affiliated Hospital of Zhengzhou University
High Myopia
Wuhan High Myopia Study
The study aims to observe the long-term changes of ocular（especially fundus） structure and visual function in patients with high myopia, so as to provide evidence for the prevention, diagnosis and prognosis of high myopia.
- Trial name
- LOVE-WH (NCT06162234)
- Testing
- observational
- Where
- China
- Volunteers
- 1,000 people, healthy volunteers welcome
- Sponsor
- Renmin Hospital of Wuhan University
High Myopia, Pregnancy Related
Physiologic Ocular Changes During Pregnancy in Women With High Myopia.
The prevalence of myopia is seemingly increasing, and it is one of the major causes of blindness. High myopia is defined as a refractive error with spherical equivalent exceeding -6 diopters and/or the axial length longer than…
- Trial name
- NCT04773574
- Testing
- Corneal topography, Optical coherence tomography (OCT) and Optical coherence tomography angiography (OCTA)
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Khon Kaen University
High Myopia, Macular Holes
High Myopia Macular Hole and Retinal Detachment Treated With Double ILM Flaps
From July 2015 to December 2015, clinical record of 8 consecutive cases of macular hole with retinal detachment in high myopia treated with combined inverted and free ILM flap insertion into the hole were retrospectively…
- Conditions
- High Myopia, Macular Holes, Retinal Detachment
- Trial name
- NCT03174639
- Testing
- Inverted and free ILM insertion
- Volunteers
- 8 people
- Sponsor
- National Taiwan University Hospital
High Myopia
100 High Myopia Patient-reported Outcomes (PRO) and Performance Outcomes (PERFO)
Prospective, longitudinal, interventional, exploratory, non-randomized, single-center study including patients with pathological myopia .
- Trial name
- PPO100 (NCT07101146)
- Testing
- Quality of life questionnaire, Performance Outcomes (PerfO), Semi-structured interviews
- Volunteers
- 100 people
- Sponsor
- Centre Hospitalier National d'Ophtalmologie des Quinze-Vingts
Glaucoma, Myopia
Morphological Changes of Ciliary Body and Trabecular Meshwork
Glaucoma is the leading cause of irreversible blindness worldwide. Although the pathogenesis remains unclear, pathologic increase in intraocular pressure (IOP) due to blocked aqueous outflow through the trabecular-Schlemm canal…
- Trial name
- NCT05352854
- Testing
- 0.5% pilocarpine eye drops
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Yune Zhao
Myopic Macular Haemorrhages
Myopic Macular Haemorrhages
1. To identify the underlying causes of macular haemorrhages in patients with high myopia 2. In the eyes found to have macular haemorrhages secondary to choroidal neovascularisation, we hope to identify the risk factors for the…
- Trial name
- NCT00345228
- Where
- Singapore
- Volunteers
- 30 people
- Sponsor
- Singapore National Eye Centre
Macular Hole Retinal Detachment
Inverted Internal Limiting Membrane Flap Technique for Macular Hole Retinal Detachment in Highly Myopic Eyes
To evaluate efficacy of vitrectomy with inverted internal limiting membrane (ILM) flap technique for macular hole retinal detachment (MHRD) in highly myopic eyes, and to demonstrate postoperative clinical course of MHRD after…
- Trial name
- NCT02896972
- Testing
- Vitrectomy
- Volunteers
- 32 people
- Sponsor
- Kyorin University
Myopia, Intraocular Lens Complication
Trifocal Intraocular Lens in High Myopic Patients With Different Meta-PM Grading
Study the postoperative visual quality and safety of trifocal intraocular lenses implanted in patients with different levels of myopic maculopathy stages according to Meta-PM staging (stage 0-2).
- Trial name
- NCT05718076
- Testing
- cataract surgery
- Where
- 2 sites in China
- Volunteers
- 60 people
- Sponsor
- Aier School of Ophthalmology, Central South University
High Myopia, Cataract
Shanghai High Myopia Study
The purpose of this study is to evaluate the long-term visual outcome of the cataract surgery using a large-scale and comprehensive database of high myopic cataract and age-related cataract patients.
- Conditions
- High Myopia, Cataract, Visual Outcome, Genetic Anticipation
- Trial name
- NCT03062085
- Testing
- Cataract
- Where
- China
- Volunteers
- 60,000 people
- Sponsor
- Shanghai High Myopia Study Group
Myopia
Safety and Efficacy Study of A Viscoelastic-free Method for Implantable Collamer Lens (ICL) Implantation
This study evaluates the safety and efficacy of a viscoelastic-free method for Implantable Collamer Lens(ICL) implantation to treat high myopia.
- Trial name
- NCT03059043
- Testing
- viscoelastic-free implantation system, standard viscoelastic-assisted Implantation system
- Where
- 5 sites in China
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Wenzhou Medical University
Myopia
A RCT of Spectacles With Aspherical Lenslets or 0.05% Atropine for Myopia Control
To date, randomized trials of low-concentration atropine eyedrops and specially designed spectacle lenses to slow the progression of myopia are limited in number and results are inconsistent in non-Asian children.
- Trial name
- NCT07095894
- Testing
- Atropine, Spectacles with HAL
- Where
- 18 sites in United States
- Volunteers
- 348 people
- Sponsor
- Jaeb Center for Health Research
Myopia
Effectiveness of Myopia Control Interventions : A Comparison of Myopia Control in European Children, Adolescents and Young Adults With Defocus Incorporated Multiple Segments (DIMS) and Highly Aspherical Lenslets (HAL) Spectacles, Atropine, Lenses and Combined Treatments
The prevalence of myopia and its complications has risen considerably in recent decades, particularly among children and teenagers.
- Trial name
- NCT07120165
- Testing
- Demographic data collection, Ophthalmological history, Ophthalmological data at each examination
- Where
- France
- Volunteers
- 114 people
- Sponsor
- Centre Hospitalier Universitaire de Saint Etienne