I would think that this design would require the user to always look directly forward. Otherwise the laser wouldn't hit the same spot when the user looked slightly to the side. The visual distortion that this would cause would probably make you pass out. In order to really make it work you would probably need to track eye movement as well. Although this is possible, it seems like it would be error prone and would make the system too expensive for consumer use.
The bottom line is that unless they place the laser emitter right on your cornea, any eye movement would cause distortion and make the user very dizzy. The further the distance between the emitter/mirror and your cornea, the bigger the impact of even tiny eye movement.
Slashdot Mirror
I would think that this design would require the user to always look directly forward. Otherwise the laser wouldn't hit the same spot when the user looked slightly to the side. The visual distortion that this would cause would probably make you pass out. In order to really make it work you would probably need to track eye movement as well. Although this is possible, it seems like it would be error prone and would make the system too expensive for consumer use. The bottom line is that unless they place the laser emitter right on your cornea, any eye movement would cause distortion and make the user very dizzy. The further the distance between the emitter/mirror and your cornea, the bigger the impact of even tiny eye movement.