Join Date: Jan 2007
Location: Brisbane, Australia
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It is typical of 3D glasses. (You use the glasses to watch the display screen, which is directly in front of you.) And it is typical of prescription glasses, though with prescription glasses in everyday life you may find you occasionally actually need to cast your eyes all the way up or all the way down and you will then momentarily lose the correction provided by the prescription glasses.
I've noticed that cheaper active 3D glasses are sometimes a little smaller in lens area, presumably as a cost savings measure.
People who need to wear prescription glasses for distance simply put on 3D glassses as they would sunglasses, i.e. over their prescription glasses. This is not usually a problem.
Last edited by MLXXX; 07-11-2014 at 08:21 PM.