For working in environments where you cannot or do not want to use a computer, a microscope with a direct TV or VGA connection might be the best solution. The Dino Lite series with a VGA connecter can be plugged directly into a computer monitor.
AM4116ZTL: Direct VGA connection, Adjustable -10x - 70x & 200x, Polarizer Anti-reflection. Resolution 800 x 600.