The authors alone are responsible for the content and writing of the paper.
Disclosure: M. Al-Sheikh, None; H. Akil, None; M. Pfau, None; S.R. Sadda, Alcon (C), Allergan (C, F, R), Avalanche (C), Bayer (C), Carl Zeiss Meditec (F, R), Genentech (C, F), Iconic, (C), Novartis (C), Optos (C, F, R), Regeneron (C), Roche (C), Stem Cells, Inc. (C), Thrombogenics (C)