A security's closing price on the preceding day of trading. Previous close can refer to the prior day's value of a stock, bond, commodity, futures or option contract, market index, or any other security.
Medical Definition of Lazy eye. Lazy eye: An eye that diverges in gaze. A lazy eye is formally called strabismus. A lazy eye (strabismus) can be due to esotropia (cross-eyed) or to exotropia (wall-eyed). The danger of the condition is that the brain comes in time to rely more on one eye than the other and that part of the brain circuitry connected to the less-favored eye fails to develop properly, leading to amblyopia (blindness) in that eye.
1 Also called lazy eye, amblyopia is a vision development problem where an eye fails to attain normal visual acuity, usually due to strabismus or other problems of eye teaming.  Strabismus. The success of vision therapy for strabismus depends on the direction, magnitude and frequency of the eye turn.