Do blue light filters reduce eye strain and provide screen protection? Experts reveal mixed evidence on glasses, apps, and ...

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.

Q: I don’t usually write to the paper, but was scrolling through one of your recent articles (on visibility issues tied to bright LED headlights) and it’s something I’ve been considering lately. I’ve ...