Barry Snell chats to Association of Optometrist's (AOP) Dr Peter Hampson to find out about the rise in people buying their contact lenses online and the danger this poses. The AOP’s Know Your Lenses campaign launched on the 20 October 2021. As part of the campaign, consumers can read expert advice on eyecare and top tips for buying safely online,  www.aop.org.uk/knowyourlenses Image: The words Association of Optometrists, in dark grey typeface, against a white backdrop. There is a blue circle