Author contributions
All authors contributed to the study conception and design. Material preparation and data collection were performed by all authors. All authors recruited and saw patients involved in this study. Data analysis was performed by Santen SA and Aerie Pharmaceuticals Ireland Ltd; all authors interpreted the study data. The first draft of the manuscript was written by Ingeborg Stalmans and Gábor Holló, with support from Colin Griffin, and all authors commented on pre-final versions of the manuscript. All authors read and approved the final manuscript.