What does cylinder mean on my prescription?
Answer:
If you are astigmatic, your prescription will include a figure for the amount of cylindrical power which your lenses require. The number describes the difference in dioptres between your cornea's steepest and shallowest curves.
We recommend you seek professional advice if you are concerned about your eye health
Request an eye testSearch 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.