231 abbreviations
AbbreviationMeaning
IRMAIntra-retinal microvascular abnormality
ISNT[rule used to assess optic disc appearance]Inferior, Superior, Nasal, Temporal
KKeratometry
KCSKeratoconjunctivitis sicca
KPKeratic precipitates
L/RL hyperphoria
L/R FDL/R fixation disparity
LASEKLaser epithelial keratomileusis
LASIKLaser in-situ keratomileusis
LELeft eye
Left ETLeft esotropia
LHyperT or LHTLeft hypertropia
LHypoTLeft hypotropia
LOLenticular opacity
LTGLow-tension glaucoma
LVALow vision aid
MDUMallett distance unit
MedsMedications
MIMyocardial infarction
MNUMallett near unit
MRMaddox rod
M.WingMaddox wing
MWTMaximum wearing time
NB: NAD[(is frequently used but is not recommended)]No abnormality detected
NCTNon-contact tonometer
NDNeutral density filter
NIDDMNon-insulin-dependent diabetes mellitus
NLPNo light perception
NocteAt night
NPCNear point of convergence or no previous correction
NRCNormal retinal correspondence
NRRNeuro-retinal rim
NSNuclear sclerosis
NTGNormal tension glaucoma
NVNear vision
NWTNormal wearing time
OC'sOptical centres
Occ.Occupation
OccOintment
ODoculus dexter (right eye)
odOnce a day
OHOcular history
OMBOculo motor balance
ONHOptic nerve head
OphOphthalmoscopy
OSoculus sinister (left eye)
OS/ODOverall size/overall diameter
o symptomsZero symptoms
otcOver the counter (bought medication)
OUBoth eyes