early 15c., from Middle French acuité (16c.) or directly from Medieval Latin acuitatem (nominative acuitas) "sharpness," from Latin acuere "to sharpen," related to acus "needle," acuere "to sharpen," from PIE root *ak- "rise to a point, be sharp" (see acrid).
1. We work on improving visual acuity.
2. On examination, her visual acuity was normal and without apparent proptosis.
3. This equates to increased and vigor, better sleep and sharper mental acuity.
4. Results The visual acuity of 12 eyes ( 70.09 % ) was above 0.05.
5. Treatment options and goals depend on the acuity of hepatic encephalopathy.