Aichmair H
Klin Monbl Augenheilkd. 1980 Feb;176(2):276-8. doi: 10.1055/s-2008-1057444.
Report on a family of 14 in which the mother and her first four children, born out of wedlock and having different fathers, had healthy eyes and no ocular troubles. Her husband, the father of the eight younger children, presented with concomitant strabismus and amblyopia in the left eye. All his children squinted also, and all but one had amblyopia and poor fixation in the affected eye.