What is the abbreviation short for? Define. $/12$

$\backslash$table$[[,$Full word,Definition$],[$a$.$ od$,$Oculus dexter,$],[$b$.$ os$,$oculus sinister$,],[$c$.$ ou$,$oculus uterque,$],[$d$.$ PF$,$Palpebral fissure,$],[$e$.$ HVID,$\backslash$table$[[$Horizontal Sisible$],[$Iris Diameter$]],],[$f$.$ PA$,,],[$g$.$ PD$,$Pupillary Distance,$],[$h$.$ PH$,,],[$i$.$ Rx$,,]]$