Definition of twenty-twenty vision
- The doctor told me I have twenty-twenty vision.
: meeting a standard of normal visual acuity
: marked by facilely accurate discernment, judgment, or assessment
: the act or power of seeing : sight
: the special sense by which the qualities of an object (such as color, luminosity, shape, and size) constituting its appearance are perceived through a process in which light rays entering the eye are transformed by the retina into electrical signals that are transmitted to the brain via the optic nerve
: something seen in a dream, trance, or ecstasy
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