HNRNPH1 and Strabismus: Of eye abnormalities (41.2%, n = 82/199), strabismus is the most common, observed frequently in HNRNPAB-related disorder (66.7%, n = 2/3), HNRNPH1-related syndromic ID (62.5%, n = 5/8), and HNRNPR-related syndrome (55.6%, n = 5/9).