I get eyestrain/headache everytime I see a 3D movie in the cinema, and I believe that I'm not the only one experiencing this. But this issue affecting N% of po

I get eyestrain/headache everytime I see a 3D movie in the cinema, and I believe that I'm not the only one experiencing this. But this issue affecting N% of possible costumers certainly hasn't stopped 3D movies from succeeding at the box office. (I guess N would be similar for VR.)