Additionally, we identified 26 variants in TYR and OCA2 from 18 OCA cases using the NGS technology (Table 2), in addition to two novel variants, c.559_560insCATTATTATGTGTCAAATTATCCCC in TYR and c.1514 T > C in OCA2, which have not been previously reported. This evidence concerns the gene OCA2 and oculocutaneous albinism.