Lila Bard, a character in A Darker Shade of Magic by V. E. Schwab, has a glass eye after losing one eye in a childhood accident.
From the publisher:
There’s Grey London, dirty, boring, and without any magic. Red London, where life and magic are revered. White London: a place where people fight to control magic, and the magic fights back. And once upon a time, there was Black London… but no one speaks of that now…
Fleeing into Grey London, Kell runs afoul of Delilah Bard, a cut-purse with lofty aspirations, who first robs him, then saves him, and then forces Kell to spirit her to another world for a proper adventure.
US publisher: Tor, a Pan Macmillan imprint (2015)
Author represented by: Holly Root at Root Literary and Jon Cassir at CAA