“…However, there are minor differences in appearance, which imply that these do not represent a single entity. The small drusen seen in our patients are thin, uniform in size, and radially aligned to the fovea whereas so 49,[55][56][57] Genetic testing of patients with cuticular or basal laminar drusen for the EFEMP1 mutation should help to determine the relationship between this disorder and ML/DHRD. There are conflicting reports regarding the functional attributes of various dominantly-inherited drusen syndromes with respect to the ERG and EOG, [4][5][6]8,15,41,46,47,56,[58][59][60][61][62][63] colour vision, 4,8,11,44,58,64 and dark adaptation.…”