Users of contact lenses have been urged to save money by buying them over the internet.
In an article for the Observer, Rebecca Smithers outlined several ways people can pay less for their glasses or contact lenses.
She cited research from consumer watchdog Which?, whose data showed that it is cheaper to buy contact lenses online than in a bricks-and-mortar store.
"Bear in mind that you don"t need to be locked into an arrangement with the optician who tested your eyes," Ms Smithers pointed out.
She also gave an account of how she had tried to have the lenses of a vintage pair of Ray-Ban sunglasses repaired and had had to insist on not buying a new pair of frames as well.
This cost her less than buying an entirely new set of glasses.
Ciliary Blue recently revealed that people over the age of 60 are the most likely to have changes in prescription and need to buy more new lenses than other demographics.
It advised them to keep their old frames and simply buy new lenses in order to save money.
by Alexa Kaczka