Article History
Received: 2 September 2020
Revised: 16 September 2020
Accepted: 29 September 2020
First Online: 12 October 2020
Compliance with ethical standards
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: SRS: Consultant: Optos, Centervue, Heidelberg Engineering. Research Instruments: Carl Zeiss Meditec, Nidek, Topcon, Optos, Centervue, Heidelberg Engineering. All other authors: none.