Central progressive retinal atrophy ( CPRA ) is a different disease from PRA involving the retinal pigment epithelium ( RPE ) .
Central progressive retinal atrophy ( CPRA ) is also known as retinal pigment epithelial dystrophy ( RPED ) .
Central progressive retinal atrophy ( CPRA ) is a different disease from PRA involving the retinal pigment epithelium ( RPE ) , and is also known as retinal pigment epithelial dystrophy ( RPED ) .