It works for frosting and maybe anti-blue and anti-glare, but blurs text and edges so much that it's awkward and hard to read. Not recommended for people with sensitive eyes.
Pros
βWHO NEED MORE BLUE LIGHT FILTERS - Insomniacs, Students, Office Workers, Gamers, Fashion Beauties, Pregnant, Seniors, Filter out blue light and relieve computer eyes to help you sleep better