View clinical trials related to Macular Degeneration.
Filter by:The purpose of this study is to evaluate the effects of anterior chamber paracentesis, brimonidine and oral acetazolamide to reduce intra-ocular pressure variations after intravitreal bevacizumab injection.
Efficacy and safety of MACUGEN in patients suffering from neovascular age-related macular degeneration in routine clinical practice at least as good as demonstrated in randomized multicenter clinical trials.
The objective of this surveillance is to collect information about 1) adverse drug reaction not expected from the LPD (unknown adverse drug reaction), 2) the incidence of adverse drug reactions in this surveillance, and 3) factors considered to affect the safety and/or efficacy of this drug.
Repeated exposure to topical antibiotics may alter the normal bacteria on the eye and in the nose and increase rates of resistance. This study will determine whether repeated short-term exposure to topical antibiotic drops which are commonly prescribed after eye injections to reduce the chance of infection increase rates of resistant bacteria which are normally found on the eye and in the nose. We hypothesis that certain commercially available antibiotics may increase rates of bacteria resistance more so than others.
The purpose of the study is to provide efficacy and safety data for monthly ranibizumab 0.5 mg intravitreal injections in Chinese patients with subfoveal choroidal neovascularization (CNV) secondary to age-related macular degeneration (AMD). The study results will support the regulatory submission in China to make ranibizumab available for clinical use.
Age-related macular degeneration (AMD) is the chief cause of severe and irreversible loss of vision in developed countries. The prevalence of AMD increases dramatically with age. The early stage (or dry AMD) is associated with minimal visual impairment and is characterized by large drusen and pigmentary abnormalities in the macula. The late stage is a neovascular, exudative form. This so called exudative AMD includes serous or hemorrhagic detachment of retinal pigment epithelium and choroidal neovascularization leading to severe loss of vision (20/200 or worse). Patients with unilateral CNV (choroidal neovascularisation) have a significant risk of CNV developing in the second eye. Choroidal blood flow is of great importance for normal visual function. Several reports have provided evidence suggesting that choroidal blood flow is decreased in subjects with AMD. In late stages of AMD angiogenesis leads to the formation of choroidal neovascularization that can cause severe visual impairment by disrupting normal macular function. The purpose of this evaluation is to investigate a possible link between alterations in choroidal blood flow and the development of CNV and serous detachment in the fellow eye of patients with AMD and unilateral neovascular maculopathy. This longitudinal study may provide important findings with respect to natural history and visual prognosis of patients with neovascularized AMD. Ocular blood flow will be determined by non-invasive methods, including laser Doppler flowmetry and laser interferometry
The purpose of this study is to investigate the efficacy of combined intravitreal therapy with or without prior photodynamic therapy in patients with wet age-related macular degeneration (AMD). In patients with wet AMD, a significant improvement in vision was observed after combined intravitreal therapy with or without prior photodynamic therapy. Both the pharmacological effects of the drugs and the physiological effects of the pars plana vitrectomy (posterior vitreous detachment, liquefaction, and oxygen redistribution) may have contributed to the long-term sustainability of the therapeutic benefits.
This open-label, randomized, Phase II research study will look to see whether an investigational treatment combining bromfenac ophthalmic drops with ranibizumab intravitreal injection is safe and effective for treating wet AMD as compared to ranibizumab alone.
Purpose: To evaluate the effects of anterior chamber paracentesis, brimonidine and oral acetazolamide to reduce intra-ocular pressure (IOP) variations after intravitreal bevacizumab injection (IVBV). Methods: 47 patients scheduled for IVBV (1.5 mg / 0.06 ml) will be randomly assigned to a pre-treatment 1 hour before IVBV with either 250 mg oral acetazolamide (DIA, 9 eyes), anterior chamber paracentesis immediate after IVBV (PAR, 15 eyes), topic brimonidine tartarate 1 hour before IVBV (BRI, 14 eyes), or no pre-treatment IBVB (CTR, 9 eyes). IOP will be measured 90 minutes before injection (baseline), just before injection, and at 3, 10, 20 and 30 minutes after the procedure.
Transcorneal stimulation may enable neurons to survive degeneration processes via enhanced secretion of neurotrophic substances and direct stimulation of neurons.