Here is a quick fix for eye strain, especially for people glued digital screens. There seems to be a growing area of science revealing the major health impacts, of light frequencies and how blue light is especially damaging. Apparently the Operating System providers have missed the need for addressing this health impact, in favor of "true color" for computer graphics, outdoor full sun. etc... Screens do not self adjust. Part of the solution is to instantly install an automatic color shifting preference, according to time of day and night. I found this download which works quite well at times where absolute color standards are not needed, (which is probably more than 99% of the time).
https://justgetflux.com. (This is an OS preference free of cost).