HSA distance:Len:Pt:Glasses.lens.right:Qn:Lensmeter
hsa distance:len:pt:glasses.lens.right:qn:lensmeter
HSA distance:Length:To identify measures at a point in time:Glasses.lens.right:Quantitative:Lensmeter
hsa distance:length:to identify measures at a point in time:glasses.lens.right:quantitative:lensmeter