OCA2 and albinism: Regarding these 11 patients, genetic investigations revealed that 10 of them carry pathogenic genetic variants in tyrosinase genes (TYR), solute carrier family 45 member 2 (SLC45A2) and oculocutaneous albinism type 2 (OCA2), responsible for the development of the non-syndromic forms of albinism, and one of the 11 patients carries pathogenic variants of a gene (biogenesis of lysosomal organelles complex 3 subunit 1 (HPS1) gene) associated with the syndromic form of the disease.