Many of the leading technology firms have invested heavily in research and development budgets to create products that minimise the negative effects of digital displays.Īs an example, if you’ve ever read a book on a Kindle you’ll know that the display, including brightness and reflectiveness, is intended to look as similar as possible to a physical book. ![]() So does screen brightness affect your eyes? Absolutely. Rather, overexposure to a bright screen causes us to experience something termed digital eye strain (DES) which manifests itself as headaches, blurred vision and reddened strained eyes. To be clear, blue light emitted by devices such as laptops and mobile phone screens is not high intensity, and so does not represent a biohazard even after long term viewing. ![]() ![]() Of all visible light, blue light has the shortest wavelength and so carries the greatest energy levels and exposure to very high intensity blue light can even cause damage to photoreceptive retinal cells in your eye, over time making them become less responsive.
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