The VEGF protein diffuses into the choriocapillaris, stimulating the growth of new blood vessels. This process is called angiogenesisAngiogenesis
formation of new blood vessels, the growth of new blood vessels. The new blood vessels sprout and grow into and through the weakened Bruch’s membrane.
 
At this point, the condition progresses from dry AMD to a more serious form called wet AMDWet AMD
Serious, advanced form of macular degeneration where new blood vessels grow under the macula and leak fluid and blood; this accumulation of fluid and bleeding causes central vision loss, and if left untreated and scar tissue develops, the vision loss is permanent.