1. Brain and Eye Pain Imaging Lab, Pain and Affective Neuroscience Center, Department of Anesthesiology, Critical Care and Pain Medicine, Boston Children's Hospital, Harvard Medical School, Boston, MA, United States
2. Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA, United States
3. Surgical Services, Miami Veterans Administration Medical Center, Miami, FL, United States
4. Bascom Palmer Eye Institute, University of Miami, Miami, FL, United States
5. Cornea and Refractive Surgery Service, Department of Ophthalmology, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA, United States