You have a continuous lowlight on any hospital wards. Due to people having issues with walking to and from a bathroom. Not to mention a potentially hazardous and uncommon environment. As staff your eyes adjust to light levels and with experience the checks can be done in very low level light. I agree though a completely dark environment would be ideal. It would be the most therapeutic.
In the situation of a 1:1 which is not uncommon. A staff member on night shift sitting in absolute darkness their fatigue will be the next issue to manage.
