A macular degeneration characterized by abnormal accumulation of lipofuscin in the retinal pigment epithelium in a distinct pattern, patterns include; reticular ('fishnet-like'), macroreticular ('spider-shaped'), and butterfly-shaped. The disease is patterned macular dystrophy (MONDO_0020381, a Monarch Disease Ontology term). Also known as: macular dystrophy, patterned, patterned dystrophy of retinal pigment epithelium.