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Here's Why You Should Be Worried About Blue Light Exposure (and What to Do About It) |
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· If an iPad is held 1 foot from a viewer's face, then there is 100 percent exposure.
· If an iPad is held 2 feet from a viewer's face, then there is 25 percent exposure.
· If an iPad is held 3 feet from a viewer's face, then there is 11 percent exposure.
"The level of exposure follows the Inverse Square Law, whereby Exposure = 1/(distance)^2. Therefore, watching a video with the iPad three feet away is far safer and enables one to view the screen for a longer duration of time."
Image via @baxterblue_
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