Blue-light glasses have turned into a genuine industry, worth well over two billion dollars globally at this point, built almost entirely on the promise of protecting eyes from screens. Look closely at what the evidence actually shows, and that promise starts looking a lot shakier than the marketing suggests. In this edition of “Is it worth it,” HT Lifestyle spoke to Dr Firdose Kouser, senior consultant, Sharp Sight Eye Hospitals, to reveal the reality behind the blue-light glasses.
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