What Causes A Sudden Episode Of Blurry Vision?

Hello. I just experienced really strange abnormal vision that is difficult to explain. I was watching TV on my computer, when all of a sudden my vision got disorganized. I can t say it was necessarily blurry, but it looked as though the images in my central and peripheral vision were dancing around. It happened around 9pm tonight, it is now 10:30pm and my vision seems to be at 85-90% normal. I tried to look in a mirror at my iris, cornea, pupils, etc, and from what I could make out, it seemed normal looking. But then again, it was really difficult to see anything at all. I could still walk around without bumping into walls and furniture, but reading the clock, words on paper, text messages... I could sort of make it out, but it took a lot of blinking and frustration. The image kept disappearing on me, like it flew away. I am a 24 year old white female, healthy weight, good health (as far as I know of). This is the first time it happened. Is correcting itself on its own as of now.