Will I Have Permanent Damage To My Eye?

I tried taking a picture of my eye with an iPhone 5s camera, and didn't realize the flash was on. It wasn't right up against my eye I would say 3 or more inches away, but it made my eye hurt afterwords. This is the first time it has happened and definitely the last.
Could this cause blindness or any damage?
It happened around ten minutes or so ago and the side of my head hurts now.
Still the occasional dot when I blink too.
I can see fine, nothing blurry. Just hurts a little.

Take whatever you take for pain, and if it still hurts in a few hours, go to InstaCare. I think it'll be fine.