Were these migraines or tension headaches?

I used to get migraines as a teenager--2-3 per year. The symptoms were a throbbing pain in the back of my eyes (like there was incredible pressure on my eyes from inside my head). I would get tunnel vision and bright lights were extremely painful. I also felt extremely nauseous. Every single one ended with me throwing up, at which point the headache immediately subsided (this took about 1-2 hours).

I always assumed they were migraines. However I think it might have been related to my astigmatism. I always had 20/20 vision but I complained about not seeing the board clearly in high school and I got glasses which I used only during class at first. I initially thought the glasses were making my vision worse because every time I went to the optometrist, my vision was worse. At one point, during college, I noticed that I flat out couldn't see the TV clearly from about 10 feet away. So during college I started wearing my glasses on a regular basis (rather than just during lectures). My eyesight has since stabilized and I haven't had a migraine since I started wearing my glasses regularly (about 15 years since my last migraine).

So I wonder now whether or not I was having true migraines (even though the symptoms seemed to fit). I suspect that I was straining my eyes to compensate for my astigmatism. I think as I started wearing my glasses more and more, the muscles I was previously using weakened and I was no longer able to "force" myself into 20/20 vision.