Add 1.binocular:InvLen:Pt:Corrective lens:Qn:Lensmeter
add 1.binocular:invlen:pt:corrective lens:qn:lensmeter
Add 1.binocular:Inverse Length:To identify measures at a point in time:Corrective lens:Quantitative:Lensmeter
add 1.binocular:inverse length:to identify measures at a point in time:corrective lens:quantitative:lensmeter