That 25% figure isn't very shocking, considering is includes :
-bad content that gives headaches to everybody
-variability due to the type of theatre presentation
-people with bad health conditions when they went to the cinema
-people with prescription glasses who don't use them when they go to the cinema
-people with eye condition who could get treatment but don't know about it
-people with eye incurable condition who really cannot see 3D
All that adds up, so 25% of people having experienced at least once discomfort or headaches during 3D presentation is credible.
Originally Posted by Deja Vu
I was originally afraid that I would suffer from eyestrain because I have had problems with passive 3D. I've had no problems with active shutter glasses at all.
That is weird, passive usually causes less eyestrain than active shutter systems.
Was it a RealD presentation ? (Many people confuse RealD with passive systems, it's actually an active shuttering system that uses passive glasses, but the system itself is active)