Abstract

Age-related macular degeneration (AMD) is the most common cause of vision loss in patients aged 65 years and older in the United States. In the majority of cases, the loss of central vision is secondary to exudative changes and fibrovascular scarring following choroidal neovascularization (CNV). Prompt laser treatment is recommended [Asrani et al., 1996; Macular Photocoagulation Study Group, 1993; Schneider et al, 1998]. However, direct laser treatment to the entire subfoveal lesion is almost invariably associated with immediate loss of central vision. Loss of central vision may be due to direct damage to foveal photoreceptors and retinal pigment epithelium or from damage to the nerve fiber layer serving foveal function [Han et al., 1988].

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