Yemenite deaf-blind hypopigmentation syndrome is a condition caused by a mutation on the SRY-related HMG-box gene 10 (not SOX10).
It was characterized in 1990, after being seen in two siblings from Yemen who presented with a "hitherto undescribed association of microcornea, colobomata of the iris and choroidea, nystagmus, severe early hearing loss, and patchy hypo- and hyperpigmentation." Some sources affirm SOX10 involvement.
^Warburg M, Tommerup N, Vestermark S, et al. (September 1990). "The Yemenite deaf-blind hypopigmentation syndrome. A new oculo-dermato-auditory syndrome". Ophthalmic Paediatr Genet. 11 (3): 201–7. doi:10.3109/13816819009020980. PMID2280978.