I get my eyes checked yearly for nothing at Tesco, now Vision Express, they then issue me a prescription on the spot, as is their legal disposition to discharge. At Selectspecs
(online) you get really decent frames with scratch and anti-glare coatings all in for £6.95, delivery is £5.95. You do have to upload the prescription details. If that presents a technical difficulty, perhaps a friend or relative could do it for you. The saving is enormous, for under £13 its worth a try. If you order two pairs
(Distance and Reading) the delivery is still £5.95, so two pairs for under £20, through the door within
seven days. I first tried them about 6 years ago, thinking for the price it was worth a try, even if I only kept them as emergency spares. I was amazed at the standard, equal to the High Street alternative at several times the price and
(excuse the pun) I've never looked back.
https://www.selectspecs.com/glasses/prescription/