https://www.pinterest.com/pin/393009...tm_medium=2012
Saw this demo on Pinterest. Hope I'm allowed to link this tute.
One thing I have started to do when I watch tutes or want to examine a block closely, FMQ or whatever, I go the the lower right cormer of my screen and increase the size of the display. In the case of the above tute, I increased the size to 300% and was able to see without eye strain the demo. Give it a try.