Active clinical trials for "Glaucoma"

To determine age-adjusted reference values of the visuALL Field Analyzer (vFA) retinal sensitivity and to assess the repeatability of the measured values and compare them with those measured by a Standard Automatic Perimetry (SAP).

The purpose of this study is to compare standard automated perimetry (SAP) using the Heidelberg Edge Perimeter (HEP) to the Octopus Visual Field (OVF) analyzer and determine test-retest reliability of both parameters in detecting glaucomatous visual field losses. This study will also investigate novel imaging parameters of the optic nerve head and new automated structure-function reports.

The purpose of this study is to assess the accuracy and reliability of smartphone ophthalmoscopy compared to slit-lamp biomicroscopy in glaucoma screening for potential community screening programs.

Evaluate sensitivity and specificity of NOVA-DN visually evoked potentials (VEP) protocol and new software method (Corda) for glaucoma detection using optical coherence tomography (OCT) images to differentiate between normal subjects and glaucoma suspects.

Measurement of corneal temperature gives indirect information about the ocular blood flow. For this reason corneal temperature can be used as a surrogate to quantify ocular blood flow. It can be measured by means of infrared thermography. This test, however, is not used in an everyday clinical routine so far. In this study is investigated if ocular blood flow disturbances in glaucoma patients can be diagnosed by means of infrared thermography. Corneal temperature are measured in normal tension glaucoma patients and healthy controls before and after cold provocation test. In the group of patients and the group of controls, subjects with and without a primary vascular dysregulation (PVD) are included. This will allow to analyze and compare the influence of cold provocation on corneal temperature (and indirectly ocular blood flow) in these study Groups.

The purpose of the study is to evaluate if near-to-infrared light stimulation can improve retinal ganglion cell function in glaucomatous patients.

When implanting an Ahmed glaucoma tube, a scleral flap is usually created to cover the tube, and the conjunctiva is stitched back in place with nylon 10-0 sutures. It is hypothesized that an equally safe or better method is using a bovine pericardial patch graft that can be secured in place over the tube with tissue glue, and using tissue glue to reposition the conjunctiva in place.

Matrix metalloproteinases (MMPs) fulfill diverse important molecular functions and play pivotal roles in development, tissue morphogenesis, repair, aging, and inflammatory processes. MMPs are also important disease modulating factors, such as cancer, cardiovascular disease, rheumatoid arthritis or macular degeneration. Functional genetic variants have been described to fine-tune MMP activities at the gene transcriptional level and have been associated with increased genetic risk of e.g. arteriosclerosis or cancer. MMPs are also assumed to play a major role in the remodeling of the extracellular matrix (ECM) in the optic nerve head during glaucomatous optic neuropathy. MMP-1, MMP-3 and MMP-9 have been shown to be up-regulated in a variety of animal models of glaucoma. Here, we study three promoter SNPs within the genes encoding three members of the MMP family. By assessing the prevalence of genetic variants associated with either increased/decreased enzyme activity, we will (i) estimate their contribution to the genetic risk of developing primary open angle glaucoma (POAG) and (ii) investigate the potential role of MMPs in the functional pathology of POAG.

Implantation of Ex-Press Minishunt via the pars plana in treatment of secondary glaucoma in vitrectomized eyes achieves promising results avoiding complications of other surgical modalities.

A combination of hypotony, flat anterior chamber and choroidal detachment is the most common complications after filtering surgery. The purpose of this study is to present a new modification in standard trabeculectomy technique to reduce such complications.