Definition:

Basal laminar drusen (BLD, also termed cuticular drusen or early adult onset grouped drusen) is an early-onset-drusen phenotype that shows a pattern of uniform small (25 to 75 micrometer), slightly raised, yellow subretinal nodules randomly scattered in the macula. In later stages, these drusen often become more numerous, with clustered groups of drusen scattered throughout the retina. It has been reported that a variant in CFH gene is strongly associated with this disease.