1. Pediatrics and Rare Diseases Group, Sanford Research 1 , Sioux Falls, SD 57104, USA
2. Precigen Exemplar 2 , Coralville, IA 52241 , USA
3. , Center for Visual Science, University of Rochester Medical Center 3 Department of Ophthalmology , Rochester, NY 14642 , USA
4. University of Iowa 4 Department of Ophthalmology and Visual Sciences , , Iowa City, IA 52242 , USA
5. University of Iowa Institute for Vision Research 5 , Iowa City, IA 52242 , USA
6. Sanford School of Medicine, University of South Dakota 6 Department of Pediatrics , , Sioux Falls, SD 57105 , USA