Yes a migraine can seriously impair vision! IDK what the biological mechanism is that affects eye muscles and nerves during a migraine, but from experience I can say that indeed it feels like my eyes aren't working properly.
I'm composing the post for solutions now, but if you're in pain now I'm sure you don't want to wait! Here are some of them:

1. Butterbur
2. Alternate hot and cold foot baths
3. Essential oils - peppermint and lavender are great
4. Smoke cannabis
5. Drink coffee
   Hope you find fast relieve Hive account@alignment!