I've recently become a full time glasses wearer after only needing them for reading previously. My teenage DS is also a full time glasses wearer and has been since he was 6 years old.
He REALLY wants contacts now that he's a teen and he spent most of the summer holidays just not wearing his glasses.
I have no idea how they actually work though. 
People talk about daily or monthly lenses. Does that mean a new pair of lenses every day, or you wear them for 30 days (and nights?) and then throw them away?
Is there a downside to them versus wearing glasses instead?
Do you have to poke yourself in the eye? 👁 (I can't bear the thought of this, but DS seems happy with the idea!)
Do I get them from our normal optician? Or is it better to get them online? Does he need another eye check, or can I go to the opticians and ask for them?
I feel quite stupid about this, now that I've put all those questions down.... 