1 Duke Eye Center, Duke University Medical Center, Durham, North Carolina, United States, and.
2 Duke University Biomedical Engineering and the Fitzpatrick Center for Photonics, Durham, North Carolina, United States.
3 Duke Eye Center, Duke University Medical Center, Durham, North Carolina, United States, and Duke University Biomedical Engineering and the Fitzpatrick Center for Photonics, Durham, North Carolina, United States.