Apple is secretly developing a pair of AR glasses. At least, that's what a series of incident reports obtained by Gizmodo would lead you to believe. Much to our dismay, the documentation doesn't reveal any specific details about the hardware, but it does suggest that the company is testing a headset equipped with some type of overhead display.

"After BT4 user study, user advised study lead, that she experienced discomfort in her eye and said she was able to see the laser flash at several points during the study. Study lead referred her to optometrist and secured prototype unit for analysis," reads an incident report submitted on Wednesday, February 21.

A week later, another report was filed. This time, an "employee reported eye pain after working with new prototype, [and] thought it may be associated with use. He noticed that the security seal on the magenta (outer) case had been broken and had thought the unit may have been tampered with."

AR will be as big as the iPhone

According to an anonymous source within Apple, a team of specialists are currently testing both AR and VR headsets, though a release of the former seems a lot more likely than the latter. After all, Tim Cook believes augmented reality will be as big as the iPhone — but only time will tell.