View clinical trials related to Glaucoma.
Filter by:Current methods of detecting glaucoma and monitoring its progression over time involve visual assessment of the optic nerve, thickness measurements of nerve tissue in the eye (using optical coherence tomography, OCT) as well as functional tests which measure peripheral, or side, vision. The objective of this study is to determine if a new technique of measuring blood flow in the eye, using OCT, can be used to better detect and/or monitor changes in glaucoma patients and suspects than these methods.
Corneal endothelial cells health and pumping function is crucial to permit corneal optical clarity by keeping cornea in relatively dehydrated state. Corneal endothelial damage has been associated with most types of intraocular surgery. Trabeculectomy is the standard glaucoma surgical intervention in management of progressive glaucoma despite of medical therapy which can be performed in combination with Cataract surgery (Phacoemulsification and IOL implantation) in patients with cataract-impaired visual acuity. In this study, the investigators will investigate and compare the corneal endothelial cells number and health status before and after trabeculectomy vs. combined surgery (at 1 month and 3 months post-op visits) using Specular microscopy which is a non-invasive technique to access the structure and function of the corneal endothelium by permitting visualization of the corneal endothelial mosaic to assess the effect of this surgical intervention on corneal endothelial cells health and number.
Evaluation of the optimal dose for the efficacy in reduction of intraocular pressure and safety of PHP-201 ophthalmic solution in patients with normal tension glaucoma
The aim of this work is to evaluate efficacy and tolerability of preservative containing 0.0015% tafluprost and preservative-free 0.0015% tafluprost. Both preservative containing and preservative-free 0.0015% tafluprost will reduce intraocular pressure significantly. In addition, preservative-free 0.0015% tafluprost might improve tolerability of glaucoma patients.
Metabolomics consists in the study of metabolites in body fluids or tissues. It investigates the consequences of the activity of genes and proteins. One of its advantages is that it is able to do a simultaneous measurement of metabolic changes in living organisms as a response to a disturbance (disease, diet, environment, others) and because a metabolic profile is summative of all the biochemical processes occurring in the body at a given time, it makes no presumption about the relative importance of these processes. Ultimately it is a fingerprint of the organism's health status, at a given time. Metabolomic analysis of serum, plasma and urine has revealed panels of metabolites that distinguish patients with cardiovascular disease, breast cancer, Parkinson disease, Alzheimer's disease and diabetes from control patients. Regarding ocular diseases only few studies have been published, related to diabetic retinopathy, retinal detachment, age-related macular degeneration, uveitis and glaucoma. Glaucoma is one of the leading causes of blindness in the world, according to the World Health Organization, and there are still no biomarkers that can provide an early diagnosis. Nowadays, glaucoma classification relies substantially in the measurement of intraocular pressure (IOP), which can be rather artificial and also unreliable since IOP values can fluctuate during the day. Moreover, patients with normal IOP values can also develop glaucomatous neuropathy (normal-tension glaucoma, NTG) and progress even when IOP is decreased. Several studies have shown that NTG patients suffer from a systemic vascular dysregulation, with higher rates of systemic hypotension, Raynaud phenomenon and migraine. Hence, other mechanisms than an increased IOP are of importance in the development and progression of glaucoma. Only one metabolome-wide study has been made in glaucoma (Burgess, I.; 2015). In a sample of 72 american patients with primary open angle glaucoma (POAG), the authors found significant differences in comparison to controls. The hypothesis for this study is that glaucoma patients will differ from controls, and POAG patients will differ from NTG patients. The investigators will look into metabolomics as a way to create a method to diagnose and stratify patients, as an add-on or alternative to the currently available diagnostic tools like IOP, functional and structural measurement.
Patients with Raynaud's disease have an increased tendency of chest pain and migraine, and studies indicate that the disease might be associated with increased cardiovascular morbidity and mortality. Furthermore, a certain hyperactivity of the sympathetic nervous system has been demonstrated in these patients. Hyperactivity of the sympathetic nervous system is known to cause decreasing heart function, regardless of the underlying disease. The cardiac autonomic nervous function and thermographic parameters will be assessed in patients with primary and secondary Raynaud's phenomenon and glaucoma as well as in patients diagnosed with autonomic dysfunction such as diabetics and patients with Parkinson's disease in order to compare the function of the cardiac autonomic nervous system and the peripheral response to cold exposure. Potentially, this will lead to a better understanding of the cardiac autonomic nervous function in Raynaud's phenomenon. Moreover, it might give rise to a new perception of the condition and its association to cardiovascular disease. At the Department of Clinical Physiology, the current method of detecting Raynaud's phenomenon is time-consuming and unpleasant to the patient due to cooling for several minutes. Another aim of the PhD study is to implement infrared thermography as a gentler and possibly more sensitive method to replace the currently applied method. The project will also include an epidemiological study based on data obtained from the National Patient Registry, among others. Raynaud's phenomenon will be paired with diagnostic codes of conditions such as diabetes mellitus, Parkinson's disease, glaucoma, and cardiovascular disease.
Patients with glaucoma will be randomized to Automatic Self Transcending Meditation (ASTM) plus Treatment as Usual (TAU) or TAU alone to assess changes in Health-related quality of life (HRQoL). HRQoL is a vital construct focusing on impact of health on quality of life. HRQoL data is used in economic evaluations, a component of health economics that compares the cost and consequences of alternative courses of action. This helps policy-makers make complex financial decisions. Along with HRQoL we will measure changes in extent of depression as well as anxiety. Previously published data lacks information of HRQoL in patients with glaucoma. Through this study we shall attempt to correlate HRQoL in this population and assess if ASTM confers changes in HRQoL along with depressive and anxiety symptoms.
Evidence of a relationship between age at discovery of congenital glaucoma and visual acuity at 4 years of age. The delay in diagnosis is a factor of poor visual acuity. Will justify the implementation of information programs with health and education professionals in order to improve the functional prognosis of patients with congenital glaucoma.
To validate new screening instruments for eye disease, increase eye care access in underserved communities, and provide a scientifically implemented method to set up programs for eye disease screening.
Exploratory trial to evaluate the efficacy and safety of D565H twice daily versus D565 once daily.