Newbie - 2 basic questions

[fredyt123]

Hello -  I have a pair and they are great.  I am just fine tuning and otherwise getting to know all the features.  Two quick questions which I am sure I can find as I keep experimenting but I will pose:

1.  In a short sentence or two, what is the basic benefit of someone having these glasses?  (I have been asked but would appreciate more ammunition).
2.  Can the lens be removed and your prescription added?  If not what is option for those who need glasses more than 50% of the time??

Thanks in advance.

[optidev]

Hello !
1- It allows you to have a display in front of your eyes and keep your hands free to do stuff,
And allows you to add virtual images on real ones. Those are the benefits I see,
It is a computer in front of your eyes.
2- NO, however we provide an empty clip that can be fixed on the frame,
you cloud then fix your own correction lenses on this empty clip with the help of an optician.
I personally have glasses, and, with the ora-x, i can keep them
So you may want to look forward to it !