EYEGUARD Mens Reading Glasses, 1 Pair Rectangular Lightweight Metal Readers for Men

1.0 magnification is different to 1 x diopter can you confirm what the 1.0 frames are please as the lableing format is different for those glasses?

Do the lenses have a scratch resistant coating or are they scratch resistant themselves? Thankyou.

What material are the lenses?

Compared to the cheap one you can get in the pound shop, how do they compare in term of vision?