“…Although patient visibility is usually used as a general term, various metrics have been defined to measure it across different studies including patient head visibility from nurse stations and corridors (Bosch et al, 2016;Choi, 2011), patient bed visibility from nurse stations (Leaf et al, 2010;Vassallo et al, 2000), visibility of upper third part of the bed from nurse stations (Calkins et al, 2012), field of view from patient head (Lu et al, 2014), patient bed visibility across the entire unit (targeted visibility) (Lu & Zimring, 2012), visual connectivity of patient rooms, visual step depth of assigned patient rooms (Heo et al, 2009), and Isovistminute, a spatiotemporal metric that measures real surveillance by including the actual occupancy of the space (Gomez-Z., P., 2017; Gomez-Z. P. et al, 2019).…”