Received: 3 December 2021
Accepted: 12 June 2022
First Online: 28 June 2022
: This study was approved by the Ethical Committee of the Medical University of Vienna (protocol number 1872/2019).
: Not applicable.
: The Vivascope 2500 device was provided by Mavig Ltd. for the time of the study from March to June 2020. All authors declare that they have no financial or personal relationships that could be viewed as a potential conflict of interest.