Lets say the guy is pointing his head with the Head mounted Laser at
the "screen" and some intern says "Hey Doc look at xxxxx"
and he instinctively turns around to see who is addressing him...
and shines his Head Mounted Laser in the face of the addressee...
Nah..... Bad idea.... all around... unless everyone in the "operating"
room wore Laser Safety Goggles... IMO
Uhm, just an idea, but if he's using the laser for point the screen for indicate what he's doing (i can just suppose, maybe a "live" operation for a class ?), is also needed a footswitch for turn on the laser only when he need ..... otherwise, also the reflection and spot of the pointer can disturb him when he's looking what he's doing inside the patient ..... (and the patient can not be too happy of this )