I was listening to a Podcast I enjoy and they had a sponsor who sold blue light blocking glasses. This got my attention because I often have eye strain from staring at the computer screen too long. So I went to the website and was put off by the over $100 price even with the shows discount. I won’t name the podcast because they rely on the advertisement. So I checked Amazon and they sell blue light blocking glasses for ~$15 with good reviews and that includes a second pair. So thank you podcast for putting this in my mind. There were video reviews with tests that proved they work.