CLASP1 and congenital nystagmus: The window of ±500 kb from the significant SNP also included the gene CLASP1, for which mutations have been related to disorders, such as epiphyseal dysplasia that affect cartilage and bone development, especially in the long bones in the limbs, short stature, microcephaly and congenital nystagmus (Safran et al. 2021).