Guys...if you are the following the intel forum, there is a driver (version 4300) that intel would like us to try and provide our feedback if we get eye strain or not.
If you have a laptop with Intel HD graphics, and you are getting eye strain, you should try this driver and see if it helps or not. And do post your feedback at the intel forum.
Here is the link to the intel forum and the page that has the driver for download:
https://communities.intel.com/thread/53309?start=90&tstart=0