Clinical trials: High Myopia
Cataract, High Myopia
To Evaluate IOL Position, Clinical Outcome of PanOptix in High Myopic Cataract Patients
To evaluate IOL position, clinical outcome of PanOptix in high myopic cataract patients
- Trial name
- NCT05042856
- Testing
- PanOptix IOL implantation
- Where
- China
- Volunteers
- 20 people
- Sponsor
- Wenzhou Medical University
High Myopia, Macular Schisis
The Exploratory Clinical Trials on the Primary Safety and Effectiveness of High Myopic Posterior Scleral Fixation System
The purpose of this study is to assess the primary safety and efficacy of High Myopic Posterior Scleral Fixation System in the treatment of macular schisis caused by high myopia.
- Trial name
- NCT05034016
- Testing
- High Myopic Posterior Scleral Fixation System
- Where
- China
- Volunteers
- 20 people
- Sponsor
- GuangZhou WeiShiBo Biotechnology Co., ltd
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
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
High Myopia
Changes of the Corneal Endothelial Cell Count After Artisan Phakic Intraocular Lens Implantation
the investigator will evaluate the change in endothelial cell count in eyes implanted with the iris-claw phakic Artisan lens for treatment of moderate to high myopia using specular microscopy
- Trial name
- NCT03266354
- Testing
- specular microscopy before and after Artisan PIOL
- Where
- Egypt
- Volunteers
- 12 people
- Sponsor
- Assiut University
High Myopia, Choroid
Effect of Caffeine on Ocular Circulation in High Myopes
To investigate the effect of caffeine on ocular circulation by using Optical Coherence Tomography and Optical Coherence Tomography Angiography.
- Trial name
- NCT03294967
- Testing
- Caffeine, Vitamin E
- Where
- Hong Kong
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University
Wound Complication, High Myopia
The Safety Outcomes of 27 Gauge Vitrectomy for Posterior Segment Disease in High Myopia
In recent decade, a major improvement in vitreoretinal surgery was the use of small gauge surgical systems that improved the safety of vitrectomy and also reduced the surgical time.
- Conditions
- Wound Complication, High Myopia, Vitrectomy
- Trial name
- NCT04360603
- Testing
- 27G, 25G
- Where
- Taiwan
- Volunteers
- 108 people
- Sponsor
- National Taiwan University Hospital
High Myopia
The Relationship Between Structure and Visual Function in Myopia Foveoschisis
Macular foveoschisis (MF) is a common complication of pathological myopia, which is characterized by choroid-retinal degeneration and vision impairment.
- Trial name
- NCT02915133
- Testing
- macular buckling surgery
- Where
- China
- Volunteers
- 20 people
- Sponsor
- Sun Yat-sen 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, Pathologic Myopia
Shanghai Child and Adolescent Large-scale Eye Study -High Myopia Registration
1.1 Research objectives A．To observe the fundus changes in the posterior pole (morphology, thickness, asymmetry, blood flow density, etc) with the myopia progression.
- Trial name
- SCALE-HM (NCT03666052)
- Where
- China
- Volunteers
- 2,000 people
- Sponsor
- Shanghai Eye Disease Prevention and Treatment Center
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
High Myopia, Gene Mutations
TGFB1 And LAMA1 Gene Polymorphisms in High Myopia
The investigators aimed to investigate TGFB1 and LAMA1 gene polymorphisms in children with high myopia in order to determine the genetic basis of large myopic shifts causing severe visual impairment and complications.
- Trial name
- NCT03451877
- Testing
- TGFB1 AND LAMA1 GENE POLYMORPHISMS
- Volunteers
- 151 people, healthy volunteers welcome
- Sponsor
- Ege University
High Myopia
Shanghai High Myopia Study for Adults
High myopia retinopathy has become the first cause of irreversible blindness and severe visual impairment in Chinese adults, in order to avoid the blind and visual impairment caused by high myopia retinopathy, it is very…
- Trial name
- SHMSA (NCT03446300)
- Where
- China
- Volunteers
- 2,000 people, healthy volunteers welcome
- Sponsor
- Shanghai Eye Disease Prevention and Treatment Center
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
Macular Holes, Retinal Detachment
A Study of a New Surgical Treatment of Macular Hole Retinal Detachment in High Myopia
This study evaluates the surgical outcomes of inverted internal limiting membrane insertion combined with air tamponade in the treatment of macular hole retinal detachment (MHRD) in high myopia, and also to compare the treatment…
- Conditions
- Macular Holes, Retinal Detachment, High Myopia
- Trial name
- NCT03383731
- Testing
- Group 1, Group 2
- Where
- China
- Volunteers
- 38 people
- Sponsor
- Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine
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
Retinoschisis, Macular Detachment
Effects of Macular Buckle Versus Vitrectomy on Macular Schisis and Macular Detachment in Highly Myopic Eyes
Macular schisis associated with macular detachment is a one of the complications of high myopia. There is controversy in the primary treatment for this situation.
- Conditions
- Retinoschisis, Macular Detachment, High Myopia
- Trial name
- NCT03023800
- Testing
- Macular buckling, Vitrectomy
- Where
- China
- Volunteers
- 80 people
- Sponsor
- Sun Yat-sen University
Vitamin D Deficiency, Primary Open-angle Glaucoma
Comparison of Vitamin D Status and Vitamin D Receptor Polymorphisms in Patients With High Myopia and Primary Open-angle Glaucoma
Vitamin D deficiency is known to be significantly associated with high myopia. This study investigated the vitamin D status in patients with high myopia and primary open-angle glaucoma, in order to understand the relationship…
- Conditions
- Vitamin D Deficiency, Primary Open-angle Glaucoma, High Myopia, Vitamin D Receptor Polymorphisms
- Trial name
- NCT03021629
- Testing
- Serum levels of 1a, 25-Dihydroxyvitamin D3 were measured by an enzyme-linked immuno-absorbent assay
- Where
- China
- Volunteers
- 500 people, healthy volunteers welcome
- Sponsor
- Lv Yingjuan
Astigmatism, High Myopia
Comparison Between TICL and ICL+AK for High Myopic Astigmatism
To compare the outcomes of a toric Implantable Collamer Lens (ICL) and a spherical Implantable Collamer Lens combined with astigmatic keratotomy (AK) in the correction of high myopic astigmatism.
- Trial name
- NCT03202485
- Testing
- Toric Implantable Collamer Lens, ICL + Astigmatic keratotomy
- Volunteers
- 62 people, healthy volunteers welcome
- Sponsor
- Wenzhou Medical 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