LOINC long common name : Macular grid.total volume by OCT;
LOINC short name : Macular grid.total vol OCT;
LOINC description : The volume between the ILM (internal limiting membrane)and RPE (retinal pigment epithelium)
for the entire macular grid. This may be calculated as the sum of each subfield retinal
thickness measurement multiplied by the subfield's surface area.;