VA — Visual Acuity (e.g. 20/20)
VA (visual acuity) — how sharp vision is, e.g. 20/20 (6/6 metric). It describes performance, not a lens power, and is measured with and without correction.
VA (visual acuity) — how sharp vision is, e.g. 20/20 (6/6 metric). It describes performance, not a lens power, and is measured with and without correction.