To descend to practice and recount some of these signs and part of their meaning, you should know that black eyes, besides a healthy constitution, generally indicate a steadfast mind, in no way wavering or timid, but vigorous, stout-hearted, truthful and fond of virtue.
What grey-blue eyes signify.
What squinting eyes signify.
Grey-blue eyes indicate a deceitful, wavering, steadfast person. Weak eyes signify good counsel and subtle, deep deliberations. Squinting eyes which turn upwards, downwards and to either side signify someone false, cunning, not easily deceived, untrustworthy, avoiding work and loving leisure, seeking a livelihood through idleness, gambling, usury, whoring and robbery.
What small, deep-set eyes signify.
Small and deep-set eyes indicate weak, feeble sight and often future blindness in old age. They also signify strong, warlike, fearless, deceitful, agile and factional people who endure fortune, but whose lives generally end tragically.
What large eyes signify.
What blinking eyes signify.
What moving eyes signify.
What downcast eyes signify.
Red eyes.
Shining eyes.
1
Nine Books on the Nature of Things · Book Mode · Diotimos