N PO:Len:Pt:Corrective lens.right:Qn:Lensmeter
n po:len:pt:corrective lens.right:qn:lensmeter
N PO:Length:To identify measures at a point in time:Corrective lens.right:Quantitative:Lensmeter
n po:length:to identify measures at a point in time:corrective lens.right:quantitative:lensmeter