visual acuity(redirected from Preferential looking)
Also found in: Dictionary, Thesaurus, Medical.
Related to Preferential looking: preferential looking test
visual acuity[′vizh·ə·wəl ə′kyü·əd·ē]
The ability to see fine details of an object; specifically, the ability to see an object whose angle subtended at the eye is 1 minute of arc.
A measure of the ability to distinguish fine details; the reciprocal of the angular size of critical detail which is just large enough to be seen.