I used Google Glass once... The migraine set in after only a few minutes. It was horrible. It felt like I was using a 60 Hz CRT monitor, so I suspect that the

I used Google Glass once... The migraine set in after only a few minutes. It was horrible. It felt like I was using a 60 Hz CRT monitor, so I suspect that the problem is that the refresh rate is too low. Also, the eye strain of looking up in a weird way certainly didn't help!