Blue Light Filters Can Help Preserve Vision

A new feature will help your iPhone work overtime so your eyes don’t have to. Apple has created Night Shift for iOS 9.3 so you can text, respond to emails and watch your favorite shows without disrupting your body’s natural circadian rhythm. Blue light has gotten considerable attention lately. This high-frequency wavelength of light that your smartphone, tablet or computer emits is connected to poor sleeping habits and digital eye strain.

Night Shift is a filter for your screen that gives it a yellowish cast and is easier on your eyes at night. The iPhone uses a combination of white screen and blue-based lighting that is suited for daytime use but can cause strain to your eyes in the evening hours. Users can turn on Night Shift by going to Settings>Display & Brightness>toggle the Blue Light Reduction to On. You can even schedule Night Shift to come on automatically.

Parents also need to be aware of their children’s nighttime habits. Gaming, watching Netflix and YouTube and Skyping with friends are popular “wind down” activities, but they actually keep your brain awake rather than slowing it down. David Epley, a pediatric ophthalmologist in Kirkland, Washington, is a spokesman for the American Academy of Ophthalmology. Dr. Epley emphasizes that excessive screen time reduces our blink rate and can cause eye irritation and strain which negatively impacts vision.

Although Night Shift is still in beta and is not available for all iPhone users, there are apps for both iPhone and Android users that can add a night filter to your device’s screen. Moderation is also important for adults and children in limiting screen time and preventing digital eye strain. Establishing guidelines and using a filter can help protect vision in the digital age if we commit to being vigilant and aware (Source: Silicon Angle).

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