View clinical trials related to Macular Degeneration.
Filter by:The main objective is to determine the efficacy of intravitreal administration of Ranibizumab combined with intravitreous injection of expansile gas and induction of posterior vitreous detachment on best-corrected visual acuity and ocular coherence tomography (OCT) macular thickness in subjects with neovascular age-related macular degeneration (AMD) with posterior vitreomacular adhesion (VMA). Secondary objectives are to assess the safety and tolerability of the intravitreal administration of Ranibizumab combined with intravitreous injection of expansile gas.
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 objective of this study is to compare Cirrus HD-OCT automated measurements of the illumination area under the retinal pigment epithelium (RPE) to expert manual measurements of areas of hypofluorescence typical of geographic atrophy in fundus autofluorescence (FAF) images.
The objective of this study is to compare the areas designated as elevated retinal pigment epithelium (RPE) by the Cirrus HD-OCT versus those designated as drusen on color fundus photographs (CFPs).
Background: - Wet age-related macular degeneration (AMD) occurs when abnormal blood vessels grow in the back of the eye, and leak blood and other fluids that damage the eye, produce scarring, and lead to blindness. People diagnosed with wet AMD have increased production of a body chemical called vascular endothelial growth factor (VEGF). VEGF is important in the formation of blood vessels in the body, and decreasing the production of VEGF is believed to help wet AMD patients by preventing or slowing the growth of the abnormal blood vessels. Anti-VEGF drugs have been used to decrease the production of VEGF, but some people do not respond completely to these drugs. - A protein in the body called mTOR also plays a critical role in regulating how cells divide and grow and obtain their blood supply. The experimental chemical Palomid 529 inhibits the production of mTOR. Researchers are interested in determining whether Palomid 529 is safe and can help individuals with wet AMD who have not completely responded to anti-VEGF treatments. Objectives: - To evaluate the safety and effectiveness of Palomid 529 as a treatment for wet age-related macular degeneration in individuals who have not responded to standard anti-VEGF treatments. Eligibility: - Individuals with wet age-related macular degeneration in at least one eye that has not responded to standard anti-VEGF treatments. Design: - Prior to the first visit, participants should have been seen at the National Eye Institute clinic under a screening or teaching protocol, or NIH protocol 08-EI-0103, High Speed Indocyanine Green Angiography Findings in Induction Regimen of Intravitreal Ranibizumab Injection for Neovascular Age Related Macular Degeneration. One eye will be designated as the study eye to receive the Palomid 529 treatment. - Participants will have a full physical examination and medical history, a full eye examination to evaluate eye health and vision, angiography to examine the blood vessels in the eyes, and blood and urine tests during the study - Participants will receive an injection of Palomid 529 into the study eye every 4 weeks during the study, for a total of three injections. Participants may also receive anti-VEGF injections such as ranibizumab (Lucentis ) or bevacizumab (Avastin ) in the study eye 12 days before and 12 days after the Palomid 529 injection. - Participants may have standard-of-care treatments for the non-study eye if it has wet AMD as well, but may not receive experimental treatments in the non-study eye while they are in this study. - Participants will return for long-term follow-up examinations as directed by the study researchers.
Multifocal-electroretinoram (ERG) and microperimetry are objective criteria to asses retinal function. No information besides visual acuity exist for the development of retinal function during the course of wet AMD during therapy with Lucentis. The aim of our study is to evaluate the value of multifocal-ERG and microperimetry as an sensitive tool and early predictor of recurrence of the disease. The second goal will be to evaluate the neuroprotective effects of an adequate therapy on retinal function using microperimetry and multifocal-ERG during the course of wet AMD.
Aim: To demonstrate the short-term multi focal electroretinogram (mfERG) effect of oral omega-3-fatty acids in the triglyceride form on dry age-related macular degeneration (AMD). Null hypothesis: Omega-3-fatty acids do not affect the mfERGs of patients with dry AMD.
The purpose is to assess long term vision outcomes and disease status in patients with age-related macular degeneration previously treated with ranibizumab as participants in the Phase 3 ANCHOR and MARINA Studies and the HORIZON Study.
The rationale for evaluating LucentisTM (a recombinant humanized anti-human Vascular Endothelial Growth Factor (VEGF) monoclonal antibody (Fab) in patients with neovascular (wet) Age related Macular Degeneration (AMD) is based on the strong correlation between VEGF levels in aqueous and vitreous humor and active blood vessel formation. LucentisTM has been shown to maintain or improve vision in wet AMD. Since the treatments do not halt the loss of visual acuity in wet AMD, it is important to accurately measure anatomic response to treatments thereby enhancing the ability to understand patterns of response and predict the necessity for continued therapy.
This study will assess the safety, tolerability, and serum pharmacokinetics of intravitreal LFG316 in patients with advanced age-related macular degeneration.