(Tophe)

"Wanna guess why Pony You doesn't wear glasses?"

"I'm blind as a bat without them, Rainbow. Assuming magical talking ponies don't have Daring Devil-based echolocation powers, she probably just wears contacts. Which probably aren't very comfortable if you have to put them in with hooves... I wonder how myopic pegasi manage."

"Nope, that's not it! I have here a text from Other Twilight herself saying she got hornbeam-eye surgery. And then two more asking what our word for hornbeam is."

"Fascinating. Well, mystery solved?"

"Wwwwwweeeeeeeeelllllllllllllllllllllllll..." grinned Rainbow over the course of five seconds.

"I saw that face when Pinkie was plotting the rock candy prank. It looks scarier on you."

"Okay, hear me out. Unicorns shoot lasers out of their horns - which, by the way, is totally awesome. You're part unicorn. So, I - "

"Are you about to suggest I perform high-energy magical surgery on myself, somehow shooting a laser from my forehead to my eye without hitting anything in-between, to fix a small cosmetic problem?"

"Oh yeah, didn't think of that. You'd have to use a mirror. Unless you can make your lasers curve."

"Rainbow, it would literally be less dangerous to request help from Mr. Discord."

(Masterweaver)

"...and that's when Rainbow changed tack, and, well, I did work with Mr. Discord a lot before I met you, and..."

Twilight sighed, awkwardly rubbing one of her four eyestalks.

Sunset facepalmed. "And that's why you have nine eyes now."

"I swear," Discord insisted, "I did not mean for this to happen."

Author's Notes:

Mr. Discord's degree is in physics, not biology.