1. Department of Anesthesiology and Intensive Care Medicine, Kepler University Hospital GmbH, Johannes Kepler University Linz, 4040 Linz, Austria
2. JKU Linz Institute of Technology SAL eSPML Lab, Institute of Signal Processing, Johannes Kepler University Linz, 4040 Linz, Austria
3. JKU Department of Ophthalmology, Kepler University Hospital GmbH, Johannes Kepler University Linz, 4040 Linz, Austria