LOINC long common name : Axis measurement increment Keratometer;
LOINC short name : Axis step KM;
LOINC description : Axis measurement increment is the specificity to which a keratometer can measure the
axis, typically 1 or 5 degrees. For example, a 5 degree increment allows measurement
of 5, 10, 15 degrees, etc., while a 1 degree increment allows finer measurement to
a single degree.;