Funding for this research was provided by:
Bundesministerium für Bildung und Forschung (13GW0051C)
Received: 31 August 2020
Accepted: 28 December 2020
First Online: 19 January 2021
Ethics approval and consent to participate
: Eyes were explanted postmortem by a slaughterhouse approved in accordance with the guidelines of the German Regulations for Animal Protection and Slaughter, issued by the German Federal Ministry for Consumer Protection, Food and Agriculture in 2012.
: Not applicable.
: The authors declare that they have no competing interests.