stackyFACTS
Health

Why astigmatism turns lights into starbursts

HERE’S THE INTERESTING PART

Having a cool-sounding optical diagnosis just means your eyeball failed at being spherical. Instead of being perfectly round like a basketball, a cornea with astigmatism curves steeply in one direction like a football. This warps light unevenly as it enters, turning streetlights into massive, blinding starbursts every time you drive at night.

Why astigmatism turns lights into starbursts
STACKY / Health
One discovery leads to another.

Keep exploring facts in this topic.

Health →
STACKY FOR IPHONE

A bigger world.
One discovery
at a time.

Keep discovering with Stacky. Interesting facts in an app that is always within reach.

Download on the App Store
ONE MORE DISCOVERY?

Keep exploring

All in this topic →
Why some people cry while eating
Health

Why some people cry while eating

Manipulative toddlers aren't the only ones faking it for attention. In a bizarre neurological cross-wiring scenario, some people recovering from facial nerve…

Discover more
Your tongue is attached only at the back
Health

Your tongue is attached only at the back

Unlike literally every other structural muscle that securely connects at two distinct endpoints to pull itself taut, your tongue wildly flaps around connected…

Discover more
Cooper's ligaments suspend internal mammary tissue securely
Health

Cooper's ligaments suspend internal mammary tissue securely

Without these extremely fragile bands of internal biological tape, everything would immediately surrender to gravity. They desperately cling to the chest…

Discover more
Hitting your funny bone actually has nothing to do with bones at all, but is rather the painful compression of the ulnar nerve against the humerus where it passes near the surface of the elbow.
Health

Hitting your funny bone actually has nothing to do with bones at all, but is rather the painful compression of the ulnar nerve against the humerus where it passes near the surface of the elbow.

Hitting your funny bone actually has nothing to do with bones at all, but is rather the painful compression of the ulnar nerve against the humerus where it…

Discover more
Why does chewing potato chips sound violently loud inside your head, but barely noticeable to people next to you?
Health

Why does chewing potato chips sound violently loud inside your head, but barely noticeable to people next to you?

Why does chewing potato chips sound violently loud inside your head, but barely noticeable to people next to you?

Discover more
How tonsils can grow back after removal
Health

How tonsils can grow back after removal

If you thought you permanently evicted those useless lumps of lymphoid tissue when you were seven years old, check your throat again. Tonsils are incredibly…

Discover more
StackyMore discoveries in the app
Download on the App Store