What is "scleras"

Usage examples of "scleras".

Eyes nearly shut under the heavy lids, yellowish scleras surrounding nearly black irises.

Smokey Updike was no one to fool with — Smokey who wore a succession of paper fry-cook's hats on his narrow head, Smokey with his large plastic mail-order dentures, grisly and somehow funereal in their perfect evenness, Smokey with his violent brown eyes, the scleras an ancient, dirty yellow.

Those brown eyes and yellowed scleras troubled him — they were the eyes of some old hunting cat that had seen plenty of errant mice like him before.