Warning over unsafe specs sold online

In response, Spex4Less said if customers found their lenses too thick, it could thin them out for a fee. Direct Sight said that lens thickness would not compromise the visual acuity of any pair of glasses. While all nine pairs of glasses Which? ordered with a simple prescription passed the opticians’ checks, this was not the case for glasses with varifocal lenses.
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Seven out of the nine pairs of varifocals caused concern because no height measurements were taken. The expert opticians said this could be ‘very unsafe,’ as badly positioned varifocal lenses could cause the wearer to experience vision distortion, which may increase the risk of falling and could be dangerous when driving. In response, Glasses Direct, Select Specs and Specky Four Eyes explained that they accept returns for any reason, including if the glasses are out of tolerance.