Wet AMD is the most serious type. It can cause sudden vision loss in a few weeks or months. Some factors may increase the risk of wet AMD.
Progression of the disease
Wet AMD, also known as neovascular AMD, results from a transformation called choroidal neovascularization. During this process, abnormal blood vessels migrate from the choroid to the surrounding layers. These vessels can leak and damage the photoreceptor cells located in or around the macula. If left untreated, it may eventually result in permanent loss of central vision.