This research was performed as part of the employment of the authors, namely the Clinic Landstraße and the Karl Landsteiner Institute for Retinal Research and Imaging. This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors. The journal's Rapid Service Fees were funded by the authors.
The paper has not been published previously and is not under consideration elsewhere. The authors have not published or submitted any related papers from this study. Neither was the paper presented at a meeting. Publication is approved by all authors as well as the responsible authorities.
All named authors meet the International Committee of Medical Journal Editors (ICMJE) criteria for authorship for this article, take responsibility for the integrity of the work as a whole, and have given their approval for this version to be published.
Martin Stattin is the lead author and guarantor: conception, design, data acquisition, writing, interpretation of data, original draft preparation; Daniel Ahmed, Anna-Maria Haas, Stefan Kickinger, Michael Jacob: data acquisition, formal analysis and interpretation of data, draft of the article; Alexandra Graf: statistical analysis and interpretation of data, draft of the article; Katharina Krepler: resources, thorough revision of the article; Siamak Ansari Shahrezaei: conception, final draft preparation, critical revision. All authors read and approved the final version of the manuscript.
Martin Stattin, Daniel Ahmed, Anna-Maria Haas, Stefan Kickinger, Michael Jacob, Alexandra Graf, Katharina Krepler, and Siamak Ansari Shahrezaei declare that they have no conflict of interest related to this submission.
Compliance with Ethical Guidelines
All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. The Federal Hospitals Act §15a Abs. 3a states that approval from the Viennese ethics committee is not needed for this study design. All subjects provided informed consent to analyze their data retrospectively and hence to participate in the study at first presentation. No identifying information is included in the manuscript.
Martin Stattin and Siamak Ansari-Shahrezaei had full access to all the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis. The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.