Can using a computer cause auras?

I have migraine auras, which are not always accompanied by the actual headache itself. I used to get them when I was working in a highly stressful job, and then stopped having them once leaving that job. However, I now work on the computer, and have noticed that I start to get auras when I spend a lot of time looking at the screen. I don't really have a choice but to look at the screen due to my job situation. What can I do? The auras get so bad that I can barely see, which tends to be quite inconvenient. I'm relatively certain that these are auras and not vision problems, as the same "squiggles" appear in my field of vision on both sides, so I believe it to be a neurological phenomenon.