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Who’s a sleepy bunny? You are! Just go on sleeping, because you don’t want to have chemicals dripped into your eyes. That’s called a Draize Test. They’re commonly used in cosmetic research, and they involve a restrained, conscious animal having a test substance dripped into its clipped-open-eyelids (think A Clockwork Orange) for up to 14 days. Rabbits are most commonly used in this test since rabbit eyes are much more sensitive than human eyes.