Tired, because of lack of sleep, and having blurred or reddened eyes.

Having dark eyes.

Having only a single eye, particularly when a greater number is normal. / Being able to see out of only one eye.

Alternative spelling of walleyed

(literally) Having green eyes. / Jealous; envious.

Alternative spelling of popeyed

Having a glaring expression suggesting madness or terror.

Having great visual acuity, especially the ability to see at a distance. / Keenly perceptive.

Having bulging or protruding eyes

Having acute vision; having good eyesight. / Attentive, given to noticing things, aware.