1. Cystinosis; Homocystinuria (main symptom ectopia lentis); Mucopoly-saccharidoses (classical forms, special forms); Lipidoses (Tay-Sachs, Niemann-Pick, Gaucher, Fabry, Sulfatidosis, Refsum, essential hypercholesterinemia); Albinism, Alcaptonuria, Porphyria, Hypophosphatasia; Wilson’s disease.