View clinical trials related to Macular Degeneration.
Filter by:This is a pilot, single-center, interventional clinical trial in which subjects will receive 16 Gy of IRay treatment and Lucentis, followed by Lucentis treatment as needed.
This study will evaluate the efficacy of IRay treatment in patients with Polypoidal Choroidal Vasculopathy (PCV)secondary to AMD as determined by the change in the proportion of lesion activity and lesion size at 12 months.
Background: - Age-related macular degeneration (AMD) is a leading cause of vision loss in individuals over 55 years of age. It can cause permanent loss of central vision, which is important for seeing fine details and long distances. AMD has two forms: wet AMD and dry AMD. Most people with AMD have dry AMD. But dry AMD can progress to wet AMD. Wet AMD is the more serious form and can result in severe vision loss. - A method to identify and monitor the early to middle stages of AMD may help researchers develop new treatments to stop the disease before it becomes severe. In early dry AMD, people cannot see well at night. Researchers want to study whether a procedure that measures how the eye adjusts to the dark can help to identify and monitor early to middle dry AMD. Objectives: - To evaluate the effectiveness of using a dark adaptation protocol to identify and monitor early to middle dry age-related macular degeneration. Eligibility: - People at least 50 years of age who have no AMD. Others who have early to middle dry AMD in at least one eye. Design: - People will be screened with a physical examination, medical history, blood and urine tests, and a full eye exam. - This study will last 5 years and require at least 9 visits to NIH. (First visit; study visits at months 3, 6, 12, 18, and 24; and 3 yearly followup visits). - Up to 10 people will be asked to come back to the clinic 1 week after their first visit. They will be asked to test the device to be used in the study. - Participants will have baseline exams. These questions will be about problems that affect their eyes under different lighting conditions. - At every visit, participants will answer questions about general health and current medications (including any vitamins or supplements). They will also have a full eye exam and a 20- to 40-minute test. This test measures how fast the eyes recover in response to decreasing levels of light. The test also measures how sensitive the eyes are to these conditions. - Participants will continue to have these tests at the yearly followup examinations. They will be treated with the standard of care for any eye conditions they have or may develop during the study.
To obtain a genotypic analysis of patients with chronic exudative age-related macular degeneration noted to have subretinal or intraretinal edema despite continuous monthly Anti-VEGF therapy.
The general area of research in which this project has been designed is that of retinal degeneration related to mutations in the ABCR gene, responsible of Stargardt disease/fundus flavimaculatus retinal dystrophy (STD/FF). STG/FF is one of the major causes of vision impairment in the young age. STG/FF originates typically from the dysfunction and loss of cone and rod photoreceptors, developing through a photo-oxidative mechanism. The major disease locus is the central retina, i.e. the macula, whose neurons have the highest density and underlie critical functions such as visual acuity, color vision and contrast sensitivity. There is currently no cure for STG/FF. Recent experimental findings indicate that Saffron, derived from the pistils of Crocus Sativus, may have a role as a retinal neuro-protectant against oxidative damage. The stigmata of Crocus sativus contain biologically high concentrations of chemical compounds including crocin, crocetin, whose multiple C=C bonds provide the antioxidant potential. In addition it is well known that this compound is safe and free of adverse side effects. The aim of this research is to investigate the influence of short-term Saffron supplementation on retinal function in STG/FF patients carrying ABCR mutations. The macular cone-mediated electroretinogram (ERG) in response to high-frequency flicker (focal flicker ERG) will be employed as the main outcome variable. Secondary outcome variable will be the psychophysical cone system recovery after bleaching.
The purpose of this study is to evaluate the safety and clinical feasibility of the IRay System for the treatment of wet age-related macular degeneration (AMD).
To assess genetic features and intraocular cytokine profiles of non-responders to anti-VEGF treatment of exudative age-related macular degeneration. Also to assess necessity and frequency of pro re nate medical re-treatment.
The purpose of this study is to determine a possible implication of CD21, CD35 and CD55 in the pathogenesis of age-related macular degeneration. The aim is to asses a difference in expression rates of these factors on AMD-patients and a healthy control group.
The original study (GARM I) has been conducted for more than 18 years at the University of Pittsburgh Medical Center (UPMC). GARM II is a nationwide research study about age-related macular degeneration in the next generation of adults (49 to 65 years old). The purpose of this study is to identify the hereditary and exposure risk factors that lead to the development of ARM (Age related maculopathy). Participants will communicate with the research staff through a protected and confidential website and use this website to complete a number of questionnaires during the course of the study (see below). For genetic analyses, the participants will mail in easily self-collected saliva samples in special containers. Eye photographs and eye health records are sent to the research center from local sources through the Internet. Individuals are not expected to come to UCLA in order to participate. https://jseiclinres.jsei.ucla.edu/garm/ Participants will be expected to answer questionnaires or surveys about medical history, ocular history and visual symptoms, family history, smoking, dietary supplements and light exposure.
To report the short term anatomic and visual acuity response after intravitreal injection of bevacizumab and ranibizumab in patients with choroidal neovascularization secondary to age-related macular degeneration.