SBM sphere far:InvLen:Pt:Corrective lens.left:Qn:Lensmeter
sbm sphere far:invlen:pt:corrective lens.left:qn:lensmeter
SBM sphere far:Inverse Length:To identify measures at a point in time:Corrective lens.left:Quantitative:Lensmeter
sbm sphere far:inverse length:to identify measures at a point in time:corrective lens.left:quantitative:lensmeter