If you use your PC device a lot, like I do, especially at night, then you should be concerned about the exposure of bluelight to your eyes over a long period of time. This can be harmful to your eyes as your vision might be impaired over time. Eye problem is one of the harmful effects of prolonged use of your PC system if there is no protection of the eye from the screen.
Bluelight Filter, is an app that can adjust your screen color to reduce the blue light and helps your eyes to relax when using your PC.
Try this app out and share your experience here.