Shopping via the internet is becoming popular with "more and more" people, says an expert in the sector.
Danny Harrison is the identity theft manager for marketing services business CPP and said that the "best deals" can often be found online.
However, he warned that for those not so experienced in shopping on the web should take care to use trusted sites and be careful with their personal information.
Mr Harrison recommended using a credit card to pay, because this method can provide greater protection.
He also suggested tips for general credit card usage, such as never writing Pin numbers down and using websites that are verified by Visa or Mastercard.
Contactlenses.co.uk is secured by Visa (Verified by Visa)and offers lots of good deals for those who want to purchase lenses in bulk.
This can be particularly useful for wearers who prefer daily disposable lenses.
by Alexa Kaczka