_:vb50942017 . _:vb50942017 . _:vb50942017 . _:vb50942017 "A congenital fibrosis of the extraocular muscles that is characterized by congenital bilateral ptosis and limitation of the superior rectus and that has_material_basis_in a reciprocal translocation t(2;13)(q37.3;q12.11)."^^ . _:vb50942017 . _:vb50942017 "url:https://pubmed.ncbi.nlm.nih.gov/15744040/"^^ .