It's also called computer vision syndrome, and is pretty common. Everything you mentioned helps alleviate it. But I've noticed that my contact lenses sometimes

It's also called computer vision syndrome, and is pretty common. Everything you mentioned helps alleviate it. But I've noticed that my contact lenses sometimes seem to precipitate it; at other times, they're perfectly fine. After doing a bit of reading, a relatively new aspheric lens design (Biofinity Energys) might help with that. But I'd rather just wear my glasses while working than deal with monthlies. 0. http://www.eyedolatryblog.com/2017/01/tired-eyes-understanding-aspheric.html http://www.eyedolatryblog.com/2017/01/tired-eyes-understandi...