Acknowledgements
IOL
The authors would like to thank the following persons for their contributions: Roland Pohl, PhD for statistical analysis assistance; Mona Saffarzadeh, PhD for review and editing of scientific content; The Vienna IOL Study Group for serving as the independent blinded Reading Center for the EPCO-Data. For the publication fee we acknowledge financial support by Deutsche Forschungsgemeinschaft within the funding programme “Open Access Publikationskosten” as well as by Heidelberg University.