Blue Light Filter Glasses.
As on the packet... "High-energy visible (HEV) light, is that blue light coming from a cellphone, your computer (or tablet) and doesn't feel that great. First thing in the morning ? f that is awful. Better to look at flowers IRL. https://www.healio.com/optometry/news/blogs/%7B6d723bbc-f5bb-45a8-8995-2a70cdbf39aa%7D/gary-l-morgan-od/uv-vs-blue-light-which-is-more-dangerous a, on a famous annual sale these on special, were over double this price.A customer had some made for a child and he said that they were needed for a condition determined to already have been caused by this kind of modern blue light and cost a lot.
Radio talk back today 21/02/21 says they are useless. But I do feel much better when using them.
Another case of the fact checkers spouting lies?
