PCV is considered to be a variant of macular degeneration that is often seen in Asians. Up to half of all age-macular related degeneration among these populations has a component of PCV. Essentially PCV has abnormalities in the blood vessels in the choroidal layer of the eye, making it vulnerable to leak fluid into the retina or bleed suddenly. The leakages and bleeding produce a central blind spot in the affected eye.