Active clinical trials for "Macular Degeneration"

The investigators will evaluate the concentrations of cytokeratin 8 in aqueous humor in eyes with exudative age-related macular degeneration (AMD) before therapy with intravitreal Ranibizumab, and identify associations with visual and anatomical outcome after treatment.

Retinal blood flow measurement is of scientific and clinical value. For this purpose retinal vessel morphology (such as diameter, vessel wall thickness, etc) determination is crucial. Different imaging modalities might provide divergent results. Thus, quantification of such differences is valuable. The present study aims to reveal and quantify differences in vessel morphology between fundus photography, fundus angiography, and optical coherence tomography in health and disease.

In the research study an observation of patients with wet age-related macular degeneration (wet AMD) will be performed. The term observational study indicates that the current course of therapy and the associated circumstances will be recorded. In this study, no medical care is changed. Also, no new drugs are tested. This study is being conducted in about 30 centers in Germany. A total of approximately 500 patients will be enrolled. The study is designed for a period of 12 months. At the beginning and end of the study the physician will document the patient data. Therefore will be used information from the patient records and documented visits. If such information is not available in the study center, the otherwise attending ophthalmologist will be consulted about the vision acuity values and visits in the observation period. Furthermore, patients are asked to participate in three telephone interviews and fill out during their visits to the study center a short questionnaire about their current vision and their well-being. In the telephone interviews will be discussed with the patient about his wet AMD disease and its treatment, its experience and its perspectives as well as any problems occur.

This study seeks to evaluate a novel endpoint for future dry AMD clinical trials.

The purpose of this study is to identify whether changes in age-related macular degeneration (AMD) over time as seen with spectral domain optical coherence tomography (SDOCT) imaging, can be used to predict vision loss and the advancement of AMD in people at moderate to high risk for progression.

Age Related Macular Degeneration (ARMD) is the most common cause of irreversible blindness in people of age 50 or older in the western populations. ARMD has two forms, the wet and the dry forms. The wet form is more serious and can lead to irreversible loss of vision. In the wet form of ARMD, new blood vessels grow under the retina. These blood vessels leak blood and fluid and cause the retina and the macula to swell. So the thickness of the macula increases. One of the key factors in the treatment of wet ARMD is early diagnosis and treatment to prevent complete visual loss. In this research, we are going to use a technique, called the Heidelberg retinal tomograph (HRT) to measure and compare the thickness of the macula in healthy controls and in patients suspected of having ARMD. HRT is a non-invasive imaging system that uses laser to measure the thickness of the macula. This allows us to come up with a quite simple and easy-to-use technique that helps us to diagnose wet ARMD early and treat it before visual acuity is completely lost.

To demonstrate the ability of intermediate AMD subjects to follow the instructions for use and properly operate on their own the Preview PHP in home use environment, after going through training session.

The study purpose is to demonstrate that the target population can receive a packed FORESEE HOME unpack it, install and operate it to an extent that the FORESEE HOME can monitor them for changes in the visual field with good specificity. And evaluate the device usage on a small scale, at the subjects' homes before a commercial use.

The purpose of this research study is to evaluate an investigational system that may allow doctors to show images of the different parts inside the eye that show greater detail than current equipment can produce.

Surgical outcome of patients with macular drusen and co-existing abnormalities of the vitreoretinal interface, who routinely undergo pars plana vitrectomy with membrane peeling, is evaluated. Best corrected visual acuity as well as optical coherence tomography data are compared at baseline and last follow up. The rate of development of choroidal neovascularization postoperatively is noted.