The accommodation/vergence problem is well known but primarily a big deal for VR headsets like the Rift, not for cinema screens. The a/v disparity is the invers

The accommodation/vergence problem is well known but primarily a big deal for VR headsets like the Rift, not for cinema screens. The a/v disparity is the inverse tan of distance so it quickly fades into irrelevance at the 10ft range. And such disparities can be solved via Virtual Retinal Displays (http://en.wikipedia.org/wiki/Virtual_retinal_display http://en.wikipedia.org/wiki/Virtual_retinal_display) which shine laser light directly onto your retina and can simulate any level of depth and focus accurately.