Active clinical trials for "Glaucoma, Open-Angle"

Globally primary open angle glaucoma (POAG) affects over 60 million people. The exact pathogenesis of POAG is poorly understood. A significant risk factor for glaucoma is advancing age. The rate of ageing is not the same in all age matched individuals. The concept of accelerated ageing suggests that the presence of a number of specific genetic, environmental or systemic risk factors may cumulate to accelerate the ageing process in some individuals and lead to the development of age-related disease. Understanding the factors that influence accelerated ageing is vital. Advanced glycation end products (AGEs) are a complex group of compounds that are naturally formed. They accumulate gradually with age in cells, tissues and blood vessels throughout the body where they adversely affect structure and function. Circulating AGE levels can be influenced by oxidative stress levels and dietary intake. Recent research has found that sustained exposure to high levels of circulating AGEs could be a major factor in the development of a number of chronic age-related degenerative disorders, including POAG. To date there have been few clinical studies that have been able to non-invasively explore the association between AGE levels and the development and progression of glaucomatous optic neuropathy (GON), or to explore the possible contribution that oxidative stress and dietary intake make to total tissue AGE levels in such patients. Furthermore little is understood about the relationship between AGE levels and retinal vascular function, a parameter known to be altered in GON that also could be influenced by AGE levels. The proposed study will aim to evaluate whether tissue-bound AGE levels are associated with parameters of retinal vascular function, oxidative stress, dietary intake and the presence of GON. Establishing this association could increase our understanding of the pathogenesis of GON and allow a new biomarker for accelerated ocular ageing to be realised

Purpose: To investigate the effect of pseudoexfoliation (PEX) on choroidal thickness in primary open-angle glaucoma (POAG). Methods: This prospective, randomized study included 30 POAG patients and 30 PEX glaucoma patients with similar demographic characteristics, and 30 eyes of 30 healthy individuals comprised the control group. Macular choroidal thickness was measured using a Cirrus HD spectral domain optical coherence tomography (OCT) instrument.

The objective of this research study is to compare the tolerability and effectiveness of Combigan(brimonidine tartrate/timolol maleate) and Cosopt (dorzolamide hydrochloride)in the treatment of open angle glaucoma or ocular hypertension.

This study seeks to test whether these over-the-counter nutritional supplements have an impact on patients' performance during visual field testing.

To investigate the effectiveness of YAG laser iridotomy in preventing peripheral anterior synechia after CO2 Laser-Assisted Sclerectomy Surgery and the long-term effect of reducing intraocular pressure

This prospective, concurrent controlled, open-label, multicenter study is designed to collect additional safety data through 5 years of follow-up for subjects randomized to either the treatment arm (PRESERFLO® MicroShunt with MMC) or the control arm (Trabeculectomy with MMC) of the INN-005 clinical study.

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 between high myopia and the development of primary open-angle glaucoma.110 primary open-angle glaucoma patients, 110 high myopia patients and 110 age-matched people in the Han population were enrolled. Serum levels of 1a, 25-Dihydroxyvitamin D3 were measured by an enzyme-linked immuno-absorbent assay.Vitamin D receptor polymorphic analysis was studied by polymerase chain reaction-restriction fragment length polymorphism technique.

To determine the relationship between the affects of viewing commercially available content through the VISIOR video goggles and ocular blood flow in glaucoma patients and healthy subjects.

This study investigated whether vitamin D receptor gene polymorphism is altered in primary open-angle glaucoma subjects carrying the risk allele and vitamin D deficiency is an important factor in the development of glaucoma. Primary open-angle glaucoma patients and age-matched people in the Han population were enrolled. Serum levels of 1a, 25-Dihydroxyvitamin D3 were measured by enzyme-linked immunoabsorbent assay. Vitamin D receptor polymorphic analysis was studied by real-time polymerase-chain reaction high resolution melting analysis.

This study is a Post-Marketing Surveillance study in Korea to evaluate the safety and efficacy of Combigan® (brimonidine tartrate/timolol maleate) Ophthalmic Solution in patients with Open Angle Glaucoma or Ocular hypertension with insufficient response to local beta blockers treated as per standard of care in clinical practice.