Non-exudative (Dry) Age-related Macular Degeneration ( AMD )
-Variable degrees of medium to larger drusen.
-Drusen are the hallmark of non-exudative AMD.
-When well-delineated and associated with choriocapillaris atrophy,is termed geographic atrophy.
-Alterations of the retinal pigment epithelium(RPE), including RPE hyperplasia and atrophy.
-Large drusen and focal hyperpigmentation of the RPE are nonexudative features which represent an increased risk of progression to neovascular AMD.