Asda and Poundland said they would be investigating immediately while Primark declined to comment. Present in some prescription glasses, it has the effect of bending light and can cause double vision or headaches in some wearers. Of 40 branches Light Clamps Suppliers of chains and some small independents visited, a third were judged not up to scratch.S.chromeheartsonlineusa. The Primark glasses could make vision problems such as astigmatism worse, said Which? .One pair was labelled good for driving when the lenses were too dark for such use. Cheap sunglasses may look like a bargain, but could leave you seeing double or developing headaches.Fifteen pairs failed key tests and only the three from New Look passed everything.A second probe by Which? found those with the most serious eye conditions received the worst service from opticians. A ï¿¡1 pair from Primark had lenses containing optical power - in other words acting like prescription lenses - and each lens let in different amounts of light. Which? health expert Joanna Pearl said: 'While these problems would not cause long-term vision damage, they are not pleasant, and glasses must comply with the British Standard they claim to meet. Asda, M&S, Sainsbury's and Tesco insisted their sunglasses were tested to British Standards, with the latter three disputing the Which? findings. It tested three pairs of sunglasses bought from each of seven stores - Asda, M&S, New Look, Poundland, Primark, Sainsbury's and Tesco - all costing between ï¿¡1 and ï¿¡5.html) should check for the CE mark, which is mandatory on products approved for sale within the EU, and the British Standard number 1836:2005.?Young shun sun cream because it is 'uncool' to come home from holiday without a tan A pair of ï¿¡5 sunglasses from Tesco and one from Asda had one lens different to the other, while several sunglasses let in different amounts of light in each lens.com.Even those costing ï¿¡5 from high street names such as Tesco and M&S failed some lab tests, breaching British Standard quality markers, according to consumer group Which? Can a change in solar activity increase the risk of cancer for frequent flyers to the U. All three pairs from Poundland had what opticians call a vertical prism in the lenses.


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