[Billthedrill]

Say, Bill, do you see anything when you rub your eyes at night?

I see lightning-like sparks. I'm hoping it's just random firing of optic nerves and not some weird supervillain about to kidnap me, unless it's one of those sexy Hollywood supervillains who want to...uh, wait, what were we talking about?

[txhurl]

I see lightning-like sparks.

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I see those, too, right before the wavy geometric patterns.

[ADemocratNoMore]

Methinks what you're seeing are phosphines, I've seen them since I was a pup without even pressing on my eyes. While a number of possible causes have been reported, I believe you are looking at a visual representation of electrical signals generated by the optic nerves. Also known as eyelid movies.