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    Eyecare providers criticized for blue light claims


    In a study published in the journal Eye (2016 Feb;30(2):230-3), O’Hagan and his colleagues assessed blue light emission from electronic devices including light bulbs, computers and tablets. “None of the sources assessed approached the exposure limits, even for extended viewing times,” they concluded.

    But the optical chains defended their marketing of the filters. “There is a growing body of clinical evidence to support our position that exposure to some wavelengths of blue light may, over the long term, be harmful to the eye and these impacts are only just beginning to be understood,” Boots said, in a statement provided by the BBC.

    “Our Protect Plus Blue Lenses reduce exposure to harmful blue light by up to 20% and should be considered, together with the effects of diet, smoking and family history on future eye health. The promotional materials relating to these lenses were approved by Trading Standards.”

    Boots added that “where we may not have given the correct advice, we will work with our teams so they can explain the benefits of Protect Plus Blue lenses more clearly.”

    Vision Express took a slightly different tack. “We have never claimed that blue light causes retinal damage and have, therefore, never claimed that our lenses prevent retinal damage,” the company said in its own statement. “Our recommendation of blue filter lenses is based on their ability to improve contrast for better visual performance and comfort, with a filter which can help reduce eye strain.” 

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