There are a number of ways to determine the ideal strength reading glasses and reading sunglasses for you. Please note that in the interests of eye health we recommend regular eye tests and
consultation with an optician and these options are in no way a replacement for this.
For an accurate guide, we recommend using our online strength calculator.
Simply by entering your latest glasses prescription, taken in the last two years, you will be able to find your ideal strength:
Calculate My Strength
Your optician will be able to tell you what strength ready-to-wear reading glasses are most suitable for you either from your current glasses prescription or at the completion of an eye test.
Alternatively, as a good approximate guide to your reading strength please download and print out our eye chart which is in PDF format.
It is exactly A4 in size so must be printed onto A4 paper in it’s actual size with no page scaling, resizing or fitting selected.
The eye chart must be printed in order to ensure correct results as on-screen sizes vary between computers.
Download Eye Chart
You are welcome to return any items within 28 days of dispatch for an exchange or refund should they prove unsuitable - please see
section of the Help & FAQ page for more information.
Clear lenses (+0.00) are available on our blue lens glasses for customers who do not require any magnification or correction but just require the benefit of reducing blue light from digital devices such as computers, tablets and phones.