Cornea 2016 Sep;35(9):1250-4
*University of Pittsburgh School of Medicine, Pittsburgh, PA; †Pediatric Ophthalmology, Strabismus and Adult Motility, UPMC Eye Center, Children's Hospital of Pittsburgh, Pittsburgh, PA; ‡Drexel University College of Medicine, Philadelphia, PA; §Clinical and Academic Department of Ophthalmology, Great Ormond Street Hospital for Children, London, United Kingdom; and ¶UPMC Eye Center, Pittsburgh, PA.