View clinical trials related to Age-Related Macular Degeneration.
Filter by:Oral supplementation with the Age-Related Eye Disease Study (AREDS) formulation (antioxidant vitamins C and E, beta carotene, and zinc) has been shown to reduce the risk of progression to advanced age-related macular degeneration (AMD). Observational data suggest that increased dietary intake of lutein + zeaxanthin (carotenoids), omega-3 long-chain polyunsaturated fatty acids (docosahexaenoic acid [DHA] + eicosapentaenoic acid [EPA]), or both might further reduce this risk. AREDS2 was designed to test whether adding lutein + zeaxanthin, DHA + EPA, or lutein + zeaxanthin and DHA + EPA to the AREDS formulation might further reduce the risk of progression to advanced AMD. A secondary goal was to test the effects of eliminating beta carotene and reducing zinc dose in the AREDS formulation.
Age-related macular degeneration (ARMD) affects older Americans and can lead to irreversible blindness. Although the cause if ARMD is unclear, it appears to be a condition that is affected by both genetic and environmental influences. The purpose of this study is to examine an Amish community to investigate genetic factors in the development of ARMD. Study participants will be 1,000 members, ages 50 and older, of the Old Order Amish community in Lancaster and Franklin counties in Pennsylvania. Each will undergo a 30-minute dilated eye exam during which an ophthalmologist or optometrist will take digital images of the macula and optic disc. Depending on the results of their eye exam, participants may be asked to give a blood sample as well. They will also complete a brief questionnaire about personal exposure related to occupation, sunlight and smoking.
Ranibizumab is a humanised recombinant monoclonal antibody fragment targeted against human vascular endothelial growth factor A. This study will assess the safety and efficacy of ranibizumab administered on an as-needed dosing regimen in patients with subfoveal choroidal neovascularization (CNV) secondary to age-related macular degeneration (AMD).
The purpose of this study is to evaluate and conduct an exploratory comparison of the efficacy and safety of indocyanine green angiography (ICGA) guided photodynamic therapy (PDT) and fluorescein angiography (FA) guided PDT for exudative age-related macular degeneration (AMD) accompanied with polypoidal choroidal vasculopathy (PCV).
Standard perimetry provides information on topographical retinal sensitivity to light stimuli, however the said locus is not necessarily the preferred locus for fixation. Standard perimetry could also be used as a way for macular scotoma mapping, indirectly showing the fixation locus. Topographic acuity at the preferred retinal locus can be determined if correlation between loci with high sensitivity, eccentric fixation loci and potential visual acuity measurements are correlated. PURPOSE OF THE STUDY: Determination of visual acuity at preferred retinal locus in Low Vision patients with ARMD using eye standard automated and computerized perimetry methods.
The purpose of this study is to compare the ability of different doses of pegaptanib sodium to safely and effectively minimize fluid leakage within the eye, thereby stabilizing or impriving vision in patients with wet AMD when compared to placebo injections.
Othera Pharmaceuticals' Othera (OT)-551 antioxidant eye drop has the potential for chronic treatment of the dry form of age-related macular degeneration. This pilot study of up to 10 eye drop tolerant participants with bilateral geographic atrophy is designed to characterize the effect of 0.45% concentration of OT-551 eye drops given 3 times a day on the progression of geographic atrophy area over a two-year period. Participants will have one eye randomized to receive the eye drop and the fellow eye will be observed only.
Randomized controlled clinical trial of periocular corticosteroids as adjunctive therapy to photodynamic therapy (PDT) for patients with neovascular age-related macular degeneration (AMD). Patients undergoing PDT are randomized to either a periocular corticosteroid injection with 40 mg of triamcinolone acetonide or observation just prior to PDT. Patients are followed for 6 months. Primary outcome is leakage from choroidal neovascularization (CNV) at 3 months on fluorescein angiography.
This study examined whether the anti-inflammatory medicines infliximab, sirolimus or daclizumab, when given with a participant's current therapies, would prevent the growth of new blood vessels in the eye in participants with age-related macular degeneration (AMD). Participants 55 years of age and older with AMD and drusen larger than 63um may be eligible for this study. Vision in the study eye was between 20/20 and 20/400. Participants were randomly assigned to one of three treatments - infliximab, sirolimus, or daclizumab - or to observation only. In addition, participants may have been treated by their ophthalmologist as needed for their AMD. Infliximab and daclizumab were given intravenously (through a vein); infusions were given at enrollment in the study, then at 2 weeks, and then monthly. Sirolimus was a pill that was taken every other day for the duration of the study. At 6 months, participants were evaluated to see whether continuing treatment would be beneficial. In addition to treatment or observation, participants underwent the following procedures: Physical examination at enrollment and 6 months. Photographs of the back of the eye, fluorescein angiography, indocyanine green angiography and measurement of retinal thickness at enrollment and months 1, 3 and 6. - Fluorescein angiography evaluated the eye's blood vessels. A yellow dye was injected into an arm vein and traveled to the blood vessels in the eyes. Pictures of the retina were taken using a camera that flashed a blue light into the eye. The pictures show if any dye has leaked from the vessels into the retina, indicating possible blood vessel abnormality. - Indocyanine green angiography identified feeder vessels that may have supplied abnormal blood vessels. This procedure is similar to fluorescein angiography, but uses a green dye and flashes an invisible light. - Optical coherence tomography measures retinal thickness. This test shines a light into the eye and produces cross-sectional pictures of the retina. These measurements are repeated during the study to determine whether retinal thickening is getting better or worse, or staying the same. Tuberculin skin test and chest x-ray at enrollment and 6 months. Blood tests at enrollment and months 1, 3 and 6.
The macula is the site of central vision within the retina. The retina is oxygenated by the underlying choroid. These tissues are less than 1 mm thick in total. While optical techniques can reveal much about the structure of the retina, ultrasound allows imaging of the choroid and deeper tissues. This study will investigate use of high frequency (20 MHz) ultrasound for imaging of the retina and choroid in patients with age-related macular degeneration, a prime cause of blindness. The investigation will involve use of novel post-processing methodologies to achieve maximum resolution of the fine tissue structures involved in this disease.