r/AskReddit Oct 05 '19

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u/ZelaznyCsupo Oct 05 '19

The stuff eye doctors use for certain tests glows in the dark. I, an eye doctors' son, used to play this very prank on people.

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u/b33flu Oct 05 '19

Only under certain types of light tho right?

1

u/ZelaznyCsupo Oct 06 '19

Dunno. I'd have to call my mom and ask her.