How much is VR safe for health?
How many hours do you spend playing/browsing in PC or cellphone? It has the same effect on the user. I think ARena Space will orient people coming to their park first before allowing them to spend their time with a VR.
There are VR's that can cause damage to your eyes and there are fairly developed VR's that lessens the damage. But in my opinion, If you are spending 3-4 hours playing DOTA or any other games in your pc, it sustains the same damage while using the VR for 3-4 hours. Too much games will hurt your eyes.
See this link I found:
http://virtualrealitypit.com/virtual-reality-headsets-can-cause-permanent-eye-damage/?i=1Of course any gadgets can cause damage to us if you use it for a a long time continuously, for kids it's the parents responsibility to look out for their kids, but for adults we should control ourselves with these technology we are old enough to know the bad effects.