How does dry AMD differ from wet AMD?

In wet age-related macular degeneration, the retinal layers degenerate, allowing blood vessels from the wall of the eye to break through. These blood vessels then unfortunately leak both blood and fluid, damaging the central retina known as the macula, and often causing quite rapid central visual loss and distortion. In dry age-related macular degeneration, no blood vessels break through, and the process is usually slower, gradual wearing away of central vision, without the symptoms of distortion, more commonly associated with the wet disease.