Buying glasses online

[Mamaswan]

Has anyone used their optician prescription to get new specs from an online provider?

They seem so cheap in comparison and tempted to try a pair as an emergency back up.

 

[CygnusX1]

I have, but I only use reading glasses and both eyes are the same prescription.
Bought a pack of 5 from Amazon for about £10, and keep a pair in various coats and the car. Very handy and if they break, I’m not bothered.