Home » Selfies and video calls, even in summer the blue light threatens the eyes

Selfies and video calls, even in summer the blue light threatens the eyes

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George Clooney faithful to Lake Como, Gwynet Paltrow in Florence, Kim Kardashian in the background of the Spanish Steps in Rome. VIPs immortalize their Italian holidays with selfies that populate their social accounts, thus causing spikes in reservations for restaurants or hotels. But the habit of posting images of daily life, travel and holidays in the first place, is now universally widespread, and with the arrival of the holidays the shots are multiplying. In fact, even in summer, the time spent in front of digital devices remains important: to check social media, to video call and feel closer to loved ones, to check the news or to watch movies and TV series on the go.

Photo courtesy of ZEISS

An opportunity to stay connected with our interests but also a pitfall for the eyes due to the blue light; or rather its harmful component. We cannot do without blue light, because it is thanks to this component that the sleep-wake rhythm is regulated, for example. On the other hand, however, blue light can potentially damage the eyes especially with shorter wavelength radiations (380-450 nanometers) within the spectrum which have a higher energy and therefore are more harmful to the eye tissue. . However, blue is the light with which the screens of smatphones, tablets or PCs are illuminated and therefore, in the summer, being outdoors, if we use them we increase the amount of blue light to which we subject our eyes.

Fortunately, technology comes to our aid with the development of materials, such as the one with which the ZEISS BlueGuard lenses are made, which integrate specific anti-reflective properties for blue light within the material of which they are composed, thus absorbing up to at 40% of the blue violet spectrum between 400 and 455 nanometers, letting the “good” component pass. In addition, by blocking the blue light inside the material, they reduce residual reflections on the surface of the lens by up to 50% compared to traditional anti-reflective anti-blue light treatments.

But in the summer, protection cannot be complete if it does not also include protection against UV rays. And BlueGuard lenses guarantee it because they are developed starting from ZEISS UVProtect technology, which protects against rays up to 400 nanometers, the protection standard defined by the WHO which, however, has until now only been applied to sunglasses. Unfortunately, in fact, about 70% of the prescription lenses sold do not offer adequate protection from UV radiation: about 7 out of 10 lenses do not block them or block them only partially, increasing the risk of damage to the eyes and the periocular area. This is why ZEISS has set a new standard for eye health by integrating full UV protection even with clear prescription lenses made from organic material. In short, in terms of protection it is like wearing a pair of sunglasses but from an aesthetic and social point of view it is much better: you can make video calls looking yourself in the eye and selfies will appear more natural.

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