Hindsight · review build · data not yet validated
Computer displays built into eyeglasses are also used. These specialized glasses allow users to see the normal visual environment, while creating a virtual image that appears to hover in front of the viewer. The virtual images are created by a tiny laser built into the glasses that projects the images directly onto the user’s retinas.
Grader A: miss
Retinal-scanning laser displays in eyeglasses stayed in research and defense prototypes (Microvision Nomad) in 2009. No consumer product existed. Later smart glasses (Google Glass, 2013) used a prism display, not retinal lasers, and stayed far below 5% of users.
Test: At least 20% of users with eyeglass displays: effectively 0% in 2009 and under 5% in 2014.
Grader B: miss
Retinal-projection eyeglass displays stayed prototypes and defense projects; first commercial retinal-projection glasses came in 2018. Google Glass (2013, not laser-retinal) never reached 5%.
Test: User test: eyeglass displays ~0% of consumers by 2014.