Active clinical trials for "Macular Degeneration"

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.

This is a parallel, randomized, open-label, controlled study to evaluate the efficacy and safety of oral EG-301 in patients with intermediate non-exudative (dry) age-related macular degeneration (dAMD). Ninety patients will be randomly allocated in a 2:1 ratio to one of two treatment arms for at least 6 months duration. The two treatment arms are: AREDS2 supplements (Control Group, N=30) AREDS2 supplements plus EG-DPMP-01 150 mg daily (Experimental Group, N=60)

The purpose of this study is to determine whether the Optimal Acuity Clear-K® Low Vision Aid System provides a safe and effective treatment to improve vision for patients with age-related macular degeneration.

FT-003 is a gene therapy product developed for the treatment of neovascular age-related macular degeneration (nAMD). Neovascular AMD is the main cause of blindness among elderly individuals. The available therapies for treating nAMD require life-long intravitreal (IVT) injections every 4-12 weeks to maintain efficacy. Administration of FT-003 has the potential to treat nAMD by providing durable expression of therapeutic levels of intraocular protein and maintaining the vision of patients. FT-003 is designed to reduce the current treatment burden which often results in undertreatment and vision loss in patients with nAMD receiving anti-VEGF therapy in clinical practice.

The study is designed for multi-center, randomized, double-masked, active-controlled study to evaluate the longer interval of intravitreal injection of IBI302 in subjects with neovascular age-related macular degeneration.

The purpose of this study is to establish the natural history of of participants with BESTROPHIN 1 Vitelliform Macular Dystrophy. The blinding disorder Best Vitelliform Macular Dystrophy (VMD) is caused by any one of more than 250 different mutations in the BEST1 gene. As new treatments are developed, a clear understanding of the natural history of disease progression of BEST1 VMD is necessary. The goals of this natural history study are to: Report the natural history of retinal degeneration in participants with a clinical diagnosis of VMD with molecular confirmation of a pathogenic BEST1 mutation(s). Identify sensitive structural and functional outcome measures to use for future multicenter clinical trials for the treatment of BESTROPHIN 1 VMD. Compare progression of the identified structural and functional measures between the two eyes to judge the suitability of the second untreated eye as a control for a future clinical trial involving unilateral treatment Identify well-defined patient populations for future clinical trials of investigative treatments for BEST1 VMD.

Age related macular degeneration (AMD) is a multifactorial disease with a strong genetic component. Given that it is known that impaired regulation of choroidal vascular tone is present in patients with AMD, the current study seeks to investigate whether genetic polymorphisms in risk alleles for AMD are associated with altered choroidal blood flow regulation in healthy subjects. For this purpose a total of 220 healthy volunteers will be included. Choroidal blood flow regulation will be evaluated by measuring choroidal blood flow during isometric exercise. In addition, flicker induced vasodilatation will be studied and retinal vessel calibers will assessed, as well as retinal thickness and macular pigment optical density.

The primary purpose of this study is to evaluate the safety and durability of single- and repeat administration of AR-14034 Sustained Release (SR) in subjects with neovascular age-related macular degeneration (nAMD).

This is a multicentre retrospective and prospective cohort study with the goal to develop a well-characterised multimodal image database of eyes with intermediate AMD with and without early atrophy. The main objectives are: Develop a collaborative well-characterised database on intermediate AMD with or without early atrophy. Grading of these images to explore imaging markers of progression. Develop predictive models as a secondary analysis of our dataset. This study will recruit around 1.000 eyes in 6 months. All consenting patients who have had at least 3 clinic visits with multimodal imaging done at least at 6 months interval between 2 visits and meet the inclusion and exclusion criteria will be included in the study for retrospective data collection. Those with one visit remaining to complete 2 years, images will be acquired prospectively. In addition to the images, routine demographic data (age and sex) and available visual acuity (VA) (BCVA if possible, VA with Pinhole or VA with patient's glasses) will be collected. Multimodal imaging includes mandated macular OCT with or without enhanced depth imaging and infrared imaging. Fundus autofluorescence (AF) and multicolor imaging are optional. All imaging must be done on Heidelberg Spectralis system.

A greater understanding of plasticity after central vision loss can inform new therapies for treating low vision and has the potential to benefit millions of individuals suffering from low vision. The treatment of low vision is particularly relevant to the mission of the National Eye Institute (NEI) to support research on visual disorders, mechanisms of visual function, and preservation of sight. The comparison of different training and outcome factors is in line with the National Institute of Mental Health (NIMH) Research Domain Criteria (RDOC) framework and studies in an aging population are consistent with the mission of the National Institute on Aging (NIA).