1. Schepens Eye Research Institute, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
2. Department of Biomedical Engineering, McCormick School of Engineering, Northwestern University, Evanston, IL, USA
3. The Boston Keratoprosthesis Laboratory, Department of Ophthalmology, Massachusetts Eye & Ear, Boston, MA, USA
4. University of Massachusetts Medical School, Department of Ophthalmology and Neurology, MA, USA
5. Central Western Massachusetts Veterans Affairs, Departments of Optometry and Neurology, MA, USA