There’s a lot of numbers and letters on an eye test prescription, so to help you understand the jargon we’ve put togther a guide. Click here to view the guide.

If you're getting regular headaches or your vision is blurry when you wear your glasses, you should definitely book to have your eyes tested again. In some instances your eyes will just need time to adjust if you have, within the past 2 weeks, changed to a new prescription. However if you experience any dizziness with blurry vision you should book before 2 weeks.

Single vision lenses are as simple as the name, one prescription across the whole lens. They are for individuals who are short or long sighted and are also for those who have astigmatism.

Multifocal lenses are as the name suggests, multiple prescriptions across one complete lens. This enables the wearer to see at varying distances, but only have one pair of glasses.

There are specific lenses designed to help minimise the effects of night glare. Find out more about our range of driving lenses here.

We have a complete guide on which frames best suit each individual based on their face shape, skin tone and hair colour. Find out more here.

Your glasses should arrive upto 7 days after your purchse.

Pupilary distance (PD) is the measurment between your two pupils, it's measured in milimeters. Find out how to measure your PD here.

To purchase glasses online you'll need a prescription dated within the past 2 years. You can get a copy of your prescription from your opticians, simply give them a call. Or if you don't have a prescription dated with the past 2 years, you'll need to get your eyes tested. Book an appointment at your local M&S Opticians here.

If your glasses are damaged on arrival please give our customer care team a call on 0330 135 5330. You will need your order number and the card you payed on to hand.