View clinical trials related to Myopia, Degenerative.
Filter by:The myopia prevalence in schoolchildren is high in Taiwan. The myopia progression is fast in children and often associated high myopia in later life. This prospective and randomized study to investigate the effect of myopia control in myopic children with ultra low concentrations of atropine eye drops and/or low concentrations of anti-allergic and inflammatory eye drops.
Macular neovascular diseases including age-related macular degeneration (AMD), polypoidal choroidal vasculopathy (PCV), pathological myopia (PM) and etc. can cause severe vision loss. It has become the focus of World Health Organization's blindness- prevention cause. A new anti—VEGF drug conbercept has been approved and showed good efficacy and safety in clinical trials. But the exact therapeutic regimen and the efficacy in the real world still needs to be further studied, the reasons are as follows: 1. The efficacy and safety data of conbercept are collected from rigorous random controlled trials (RCT) , it can not fully reflect the clinical application of conbercept in the real world . Therefore, the knowledge of the therapeutic regimen, safety and efficacy of conbercept is still limited. 2. Conbercept has been approved for wet-AMD only, but in clinical practice, some doctors applied other "off-label use" of conbercept. These "off-label use" has become a common phenomenon all over the world for the instruction book of drugs usually lag behind scientific researches. There is no specific law or regulatory document of drug off-label use in China until now. 3. Anti-VEGF drugs are expensive and often require multiple treatments, and some patients have poor or even no response to the drugs. This resulted enormous waste of medical resources. So, how to accurately find out those patients who have good response, how to develop individualized therapeutic regimen, and the response of patients in the real world need to be urgently investigated in the aspect of pharmacogenomics, and pharmacometabolomics. Therefore, the investigators plan to carry out real-world researches of conbercept on treating macular neovascular diseases has significance and urgency. The investigators intended to conduct a nationwide, non-intrusive, prospective, observational, and multicenter registration study to investigate the efficacy of conbercept in the real-world. And this study will explore the pharmacogenomics and pharmacometabolomics of conbercept, relationships of phenotype and the effectiveness of the drug, optimize the therapeutic regimen, then reduce the financial burden of patients and save the limited medical resources to achieve the purpose of accurate treatment. For three unanswered questions raised in the background, the researchers carried out the following purposes: 1. Investigate the safety and efficacy of conbercept in treating neovascular macular disease in the real world. 2. Find out whether the "off-label use" of conbercept on PCV and PM have good efficacy. 3. Explore the pharmacogenomics and pharmacometabolomics of conbercept through large-sample registration study.
The purpose of this study is to determine the efficacy of different lens treatments (normal spectacle lens, ortho-K, & Myovision) on myopia control in Chinese adolescent patients.
This study is designed to identify the effect of current vitreous surgery for symptomatic macular tractional maculopathy. Characteristics of this study is as below 1. Multicenter, prospective clinical trial. (early surgical intervention vs.surgical intervention when full-thickness macular hole formation or deterioration of visual acuity occurs) 2. Non-randomized study (decision was made by patients after full explanation) 3. After 1 year follow up, functional change(visual acuity)and anatomical change would be evaluated
The purpose of this study is to evaluate the possible candidate gene of pathological myopia