[LondonRoad]

Specsavers, and most opticians, have a free months trial for contact lenses.

I quite like Specsavers website too. You can upload a picture of yourself and "try on" different glasses.

Make an appointment for an eye test and they'll give you good advice based on your needs. I used specsavers for the first time this month and found them a lot less pushy than Boots were previously.