Many people use their electronic devices, including phones, tablets, and computers, for extended periods. Companies now sell screen protectors that reportedly block blue light and benefit eye health.

A seldom-considered computing safety feature has nothing to do with protecting your data or preventing online identity theft. Rather, it focuses on providing visual clarity and reducing eye strain.

We might earn a commission if you make a purchase through one of the links. McClatchy's Commerce Content team, which is independent from our newsroom, oversees this content. If you spend long hours on ...