There’s no denying that in the last number of years, we’ve become extremely reliant on digital devices, in all areas of our lives. Whereas mobile phones were a plaything of the rich and famous 20 years ago, most of us today couldn’t live without our trusty smartphone. And ironically - their main function is no longer to make phone calls. Instead, we gaze into their beautiful screens to chat to friends on messaging apps, read news on online publications and showcase our amazing lives on social media. Given that many of us also spend more than eight hours a day working on a computer or laptop, it’s understandable why blue light and its potentially detrimental effects has become such a hot topic.