05/10/2013 01:39 pm ET Updated May 11, 2013

Sunglasses Inside: Celebrities Shield Themselves From Nonexistent Sunlight (PHOTOS)

Why do celebrities always wear sunglasses indoors?

It could be, of course, that they have a medical reason for doing so. (Dry eyes, migraines and brain injuries can make people sensitive to even artificial light.) But for many Hollywood A-listers, not to mention fashionistas like Anna Wintour, wearing sunnies where the sun doesn't shine is about shielding yourself from prying eyes, prioritizing style over convenience and generally giving off a too-cool-for-light vibe.

Is it annoying? Silly beyond belief? Undeniably cool? That's for you to decide. In honor of devoted sunglass-wearer Bono's birthday today, we've rounded up a slew of stars who decided to shield their peepers from... well, not the sun.

Celebrities wearing sunglasses indoors:

Maybe They Hate Fluorescent Light...

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