and Carl Zeiss, a consultant at Ziemer Ophthalmic Systems, has served on the advisory board for AbbVie, Alcon, Bausch+Lomb and Santen, and has been a speaker for AbbVie, Alcon, Carl Zeiss and Ziemer Ophthalmic Systems. HHO is a clinical investigator for Janssen, Novartis and Pfizer, and has served as a speaker and advisory board member for AbbVie, Janssen, Novartis and Eli Lilly. The other authors declare that they have no conflicts of interest.