"First and foremost, I have researched both HMDs and Glass for years and have found no evidence of any health risks," he wrote. Most of his previous statements were in regards to the need to look up when using the device, which is unnatural for most.
So far, Peli says, "very few" Glass users have reported discomfort, and strain disappears after an adjustment period of two days.
Glass is available to anyone in the U.S. who is willing to shell out $1500 for the "Explorer" beta models.