Help and frequently asked questions

What is a dioptre?

Answer: 

A dioptre is a unit of measurement of the refractive power (ability to bend light passing through it) of a lens.

Was this answer helpful?

We recommend you seek professional advice if you are concerned about your eye

Book an eye test

Search for more answers:

More help in store

If you need more help, you can contact us by searching for your nearest store below. Just type in your postcode, city or town.