sharpness of vision; the visual ability to resolve fine detail (usually measured by a Snellen chart)
[ Syn: acuity , visual acuity ]
lively attentiveness
[ Syn: alertness , on the qui vive ]
sharpness of vision; the visual ability to resolve fine detail (usually measured by a Snellen chart)
[ Syn: acuity , visual acuity ]
lively attentiveness
[ Syn: alertness , on the qui vive ]