Give it time, be honest this is really cool. Yeah you don't need it to survive, it's not necessary, but it's some real star trek type stuff. Laforge is mad jelly right now. In regards to corrective lenses, thats a bad idea. Your vision changes over time, just wear contacts when you wear glass or get corrective surgery (contacts are sufficient). I might never buy this and I might never have a need for it but I'm glad someone is developing it. Also, workplace productivity in America will decrease 10000x due to people watching fap movies all day instead of actually working.