[Quoth]

Originally Posted by ownedbycats

There's also the fanfiction meme of using the word 'orbs' for eyes. Fanlore has an entire article about the use of 'cerulean orbs.'

Oh, ghastly stuff! Obviously I've not encountered that.

Edit:
An FTS on Calibre suggests I might have, but not noticed, or will. I've not yet read "The Radium Pool"

Towering high above Sands and me, the strangers looked down through great eyes that blinked slow and deliberate like owls’ orbs in the night. Instinctively my hand shot down to my gun butt.

Not as bad as she bored me with her cerulean orbs.
Mostly orbs seem limited to planets or large round objects.

However, as the link suggests, Bram Stoker in Dracula has

Lucy’s eyes in form and colour; but Lucy’s eyes unclean and full of hell-fire, instead of the pure, gentle orbs we knew