Страна 1 од 58 резултати
Objective: The Dark Adaptation Extension study allows us to continue with the follow-up of participants who were enrolled in the clinical trial, 11-EI-0147, Longitudinal Investigation of Dark Adaptation in Participants with Age-Related Macular Degeneration, investigating long-term changes in dark
Objective: This study is designed to investigate the use of dark adaptation as a functional endpoint for progression of eyes with no to intermediate age-related macular degeneration (AMD).
Study Population: Two hundred forty (240) participants will be initially accrued; however, up to 280
The study design is a randomized, double-blinded, placebo-controlled intervention study that will evaluate whether macular pigment augmentation improves the speed of dark adaptation. Two groups of participants will be enrolled, old adults with normal vision and early age-related macular degeneration
BACKGROUND: Visual impairment affects 285 million people worldwide. The prevalence of visual impairment in the US is expected to rise from 3.3 million in 2000 to 5.5 million in 2020. This will exacerbate the current economic burden of vision loss, which is already $38.2 billion per year in direct
Objective: The objective of this study is to investigate the potential efficacy of vitamin A palmitate in improving dark adaptation in participants with age-related macular degeneration (AMD) and abnormal dark adaptation.
Study Population: Ten participants will be initially accrued, however, up to
Objective: The objective of this study is to investigate the potential efficacy of vitamin A palmitate in improving dark adaptation in participants with reticular pseudodrusen (RPD) and abnormal dark adaptation.
Study Population: Ten participants will be initially accrued, however, up to twenty
This prospective, exploratory study will be performed in multiple arms:
A. Arm 1: a pilot study of up to 40 patients (30 patients with dry age-related macular degeneration and 10 normal age-matched controls) in order to test 1) the feasibility of performing the visual function tests in this
Objective: This project, Molecular Genetics of Retinal Degenerations will study the inheritance of genetic retinal degenerations, both Mendelian and complex, in families of many nationalities and ethnic backgrounds in order to identify the genes that, when mutated, cause retinal degenerations and
The specific aims of this study are as follows:
Aim 1: To examine the association between RMDA as assessed by the rod intercept time and self reported driving difficulty and experiences during night time driving.
Aim 2: To examine the association between RMDA as assessed by rod intercept time and
Age-related macular degeneration (AMD) is the most common cause of blindness, in individuals over the age of 50, in the developed world(1,2). AMD becomes more common as people age, and is more common in lightly pigmented individuals(3). AMD appears more common in patients with Parkinson's Disease,
NBI is the most widely used system among several available image enhanced endoscopy systems. However, this technique has limitations such as dark imaging of distant lesions because of narrow-band illumination. Blue Laser Imaging (BLI) was developed to compensate for these inherent limitations of
Age-related macular degeneration (AMD) is a leading cause of vision loss among the elderly. There is no treatment for geographic atrophy (GA), the advanced stage of dry AMD, in which cells of the neurosensory retina and associated retinal pigment epithelium (RPE) gradually degenerate and die.
The treatment of age-related macular degeneration (AMD), the leading cause of blindness in the developed world, is undergoing a revolution. Intraocular injections of medications that can shut down the rapidly destructive "wet" form of the disease have changed this form to a chronic illness. However,
Gyrate atrophy of the choroid and retina (GA) is a rare autosomal recessive chorioretinal degeneration characterized by myopia, cataract, varying degrees of night blindness, and progressive constriction of visual fields associated with chorioretinal atrophy resulting in blindness. The objectives of
Age-related macular degeneration (AMD) is the leading cause of adult blindness in developed countries and the third cause of global blindness. It is an eye-ageing disease with tremendous impact in daily quality of life. Clinically, AMD is a progressive disease, which evolves from early to late