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I read the item in June’ concerning the mark-up by opticians for quality glasses in France. We have friends who are French residents who paid €1,400 and €1,800 respectively for non designer glasses!

My daughter, who until recently held a management position at a UK optician chain, gives me to understand that the manufacturing costs of both frames and lenses is no more than £25 for both.

The maximum cost for both designer frames and lenses would be no more than £400 and often they have two pairs for the price of one on promotion.

It would seem French opticians are seeking to maintain a licence to print money.

Roy Roberts, by email