Are virtual reality headsets safe for kids?

Experts advise using caution with kids

BOSTON, Ma. - (CBS)-- It's expected to be the hot holiday gift of the season: Virtual reality headsets. It's a cool new experience but there's still a lot unknown about the technology, especially when it comes to kids.

The headset completely immerses users in a new 3-D virtual world. "I felt like I was actually there." said one first-time user. "There's no age limit to this," said another virtual reality fan.

[VIRTUAL REALITY GEAR: Oculus RiftHTC ViveSamsung Gear VRPlaystation VR

But there actually is an age limit. Many of the top selling brands warn against kids using the device. Oculus Rift and Samsung VR Gear said it's not for kids under 13. Sony PlayStation is recommended for kids 12 and up. The HTC Vive is less specific, just saying it's not for young children.

"This is a big area of both interest and some concern," said Dr. Joseph Rizzo, of MassachusettsEye and Ear. Rizzo said the research is still out on VR. "There's a legitimate question about whether that much exposure to artificial visual stimuli will alter the way the brain accepts and processes visual information. It's an unknown."

The challenge for the eyes and the brain while using virtual reality is that while the image is up close to someone's face, it manages to trick the brain into seeing depth. Rizzo doesn't  know what that type of conflict might mean for any user.

"The immediate concerns are with the younger users, because they will be prone to use them for much longer periods of time," Rizzo said. 
Those concerns include what this might mean for a young, developing brains, he said.  "You need to understand whether the brain is changing in some permanent way." 

He said there's also a possible increased risk of becoming near-sighted.

So what's Dr. Rizzo's advice to parents? "You should encourage judicious use of these devices. Perhaps with time periods limited to 30 minutes or so."

The question remains if the research will catch up with the technology. "Well, there's a lot of research that needs to be done. And it should be done quickly," Rizzo said."The devices are available,and there is going to be an explosion in their availability and use in the next years. It's happening."

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