View clinical trials related to Glaucoma, Angle-Closure.
Filter by:Primary angle-closure glaucoma (PACG) is one of the major causes of blindness affecting more than 20 million patients worldwide. The goals of this observational cohort study are to investigate the 20-year incidence of PACG in Chinese population aged 50 years and to develop prediction models for the long-term risk of progression from primary angle-closure suspect (PACS) to PACG.
BACKGROUND: Primary angle closure glaucoma (PACG) is one of a leading cause of blindness worldwide including Thailand. This problem impact to the overall health of people and health care system. Treatment guidelines of each stage is differenced. Therefore, factors that affect to treatment should be explored to plan for taking care patients in the future. OBJECTIVES: The study aimed to examine the effects of cataract surgery by phaco- emulsification on intraocular pressure and to determine the factors associated with intraocular pressure among primary angle closure glaucoma patients.
The goal of this observational study is to discuss the correlation between primary angle-closure glaucoma and the state of the suspended ligament of the lens and the pathogenesis of PACG by measuring the biological data of primary angle-closure glaucoma and observing its anatomical changes.
The goal of this observational study is to examine the anterior segment anatomical parameters associated with the scleral spur and cornea for risk profiling of primary angle-closure glaucoma (PACG). The main question it aims to answer is: • Are there new anatomical parameters of the anterior segment of the eye that can be used early for risk profiling for PACG? Researchers will compare PACG and narrow angle groups to see if there are some anatomical parameters that can distinguish the two.
As ab externo metal probe trabeculotomy cannot achieve 360-degree circumferential angle surgery, prolene suture can be used to achieve this without the need for an illuminated microcatheter. In order to combine the advantages of the use of viscoelastic and those of circumferential trabeculotomy, this technique (Visco-Circumferential-Suture- Trabeculotomy "VCST") was previously used successfully in PCG. (7) In the current study , the authors hypothesize that combination of VCST with phacoemulsification in primary angle closure glaucoma patients may have an added affect to phacoemulsification alone in cases with more extent of angle damage and that the injection of a viscoelastic into both ends of the unroofed SC before its cannulation by a polypropylene suture and subsequent circumferential trabeculotomy may facilitate circumferential cannulation of SC and hence the trabeculotomy and increase the success of the technique
This work aims to study the peripapillary and macular microvascular changes in primary open angle and primary angle closure glaucoma using Optical Coherence Tomography Angiography (OCTA).
The purpose of this study is to evaluate the safety and effectiveness of implanting a new version of an interposition supraciliary implant (SV22) as a stand-alone therapy for lowering intraocular pressure (IOP) in patients with primary open and narrow angle glaucoma who have failed at least one class of topical medical therapy
This Prospective Interventional Study will assess the efficacy of MPTLT in the UK.
comparing different types of cuclophotocoagulation with cataract extraction to cataract extraction and goniocynechiolysis in cases of chronic angle closure glaucoma
The Beijing angle closure progression study (BAPS) aims to explore the 5-year incidence of PACS progressing to PAC or PACG and to determine the possible risk factors of disease progression, which may provide the evidence for choosing the accurate strategies in the management of PACS.