Ophthalmology Terminology

Eye examination term

Abbreviation	Term
AC	Anterior chamber
AC 4/4	Grade 4 anterior chamber angle
AC 3/4	Grade 3 anterior chamber angle
AC 2/4	Grade 2 anterior chamber angle
AC 1/4	Grade 1 anterior chamber angle
AC 0/4	Grade 0 anterior chamber angle
AC/A	Accommodative convergence / Accommodation ratio
Acc	Accommodation
Ad	Advised
Add	Addition
AIT	After-image transfer
ALT	Alternating
ALT ET	Alternating esotropia
ALT XT	Alternating exotropia
ARC	Anomalous retinal correspondence
A/V	Arteriole–venue ratio
BIO	Binocular indirect ophthalmoscopy
BSV	Binocular single vision
BV	Binocular vision
BVD	Back vertex distance
BVP	Back vertex power
CD	Centration distance
C/D	Cup–disc ratio
CF	Count fingers vision – state distance
c/o or c.o.	Complains of
CT	Cover test
c/u	Check up
CW	Close work
Δ	Prism dioptre
D	Dioptres
DC	Dioptres cylinder
DNA	Did not attend
DOB	Date of birth
DS	Dioptres sphere
DV	Distance vision
DVD	Dissociated vertical deviation
EF	Eccentric fixation
FB	Foreign body
FD	Fixation disparity
FF	Foveal fixation
FHG	Family history of glaucoma
FMH	Family medical history
FOH	Family ocular history
F/U	Follow up appointment
GH	General health
G(M)P	General (medical) practitioner
HA	Headaches
HARC	Harmonious abnormal retinal correspondence
HM	Hand motion vision – state distance
Hx	History
IOL	Intra-ocular lens
IOP	Intra-ocular pressure
ISNT	Inferior, Superior, Nasal, Temporal
K	Keratometry
LE	Left eye
LHyperT or LHT	Left hypertropia
LHypoT	Left hypotropia
LO	Lenticular opacity
L/R FD	L/R fixation disparity
L/R	L hyperphoria
Left ET	Left esotropia
LVA	Low vision aid
MDU	Mallett distance unit
MNU	Mallett near unit
M.Wing	Maddox wing
MR	Maddox rod
NB: NAD	No abnormality detected
NCT	Non-contact tonometer
ND	Neutral density filter
NLP	No light perception
NPC	Near point of convergence or no previous correction
NRC	Normal retinal correspondence
NV	Near vision
NWT	Normal wearing time
o symptoms	Zero symptoms
ϕ	Horizontal orthophoria
θ	Vertical orthophoria
⊕	Horizontal and vertical orthophoria
OC's	Optical centres
Occ.	Occupation
OD	oculus dexter (right eye)
OH	Ocular history
OMB	Oculo motor balance
ONH	Optic nerve head
Oph	Ophthalmoscopy
OS	oculus sinister (left eye)
OU	oculus utro (both eyes)
PD	Pupillary distance
PERRLA	Pupils equal, round, reactive to light and accommodation
PH	Pinhole
PL	Perception of light
POH / PrOH	Previous ocular history
PPA	Peri-papillary atrophy
Pt	Patient
RAPD	Relative afferent pupillary defect
RE	Right eye
Ret.	Retinoscopy
RHyperT	Right hypertropia
RHypoT or RHT	Right hypotropia
RNFL	Retinal nerve fibre layer
RPE	Retinal pigment epithelium
RSOT	Right esotropia
Rx	Prescription
SE	Spherical Equivalent
SLE	Slit lamp examination
SLM	Slit lamp microscope
EP	Esophoria
ET	Esotropia
Supp.	Suppression
V	Vision (unaided)
VA	Visual acuity
VA OS	Left visual acuity
VA OD	Right visual acuity
VDU	Visual display unit
VF	Visual field
VPS	Variable prism stereoscope
WD	Working distance
X/12	X months
X/52	X weeks
X/7	X days
XP XT	Exophoria Exotropia
	Clinical conditions terms Abbreviation Term AMD/ARMD Age-related macular degeneration ACG/CAG Angle closure glaucoma BDR Background diabetic retinopathy BP Blood pressure BRAO Branch retinal artery occlusion BRVO Branch retinal vein occlusion Cat Cataract CLAPC/CLIPC Contact lens associated/induced papillary conjunctivitis CLARE Contact lens associated red eye CLPU Contact lens associated peripheral ulcer CNS Central nervous system CRAO Central retinal artery occlusion CRVO Central retinal vein occlusion CSR Central serous retinopathy CVA Cerebrovascular accident Dx Diagnosis dDx Differential diagnosis DR Diabetic retinopathy ESR Erythrocyte sedimentation rate Fx Family history GPC Giant papillary conjunctivitis Hx Hospital HES Hospital eye service IDDM Insulin dependent diabetes mellitus IRMA Intra-retinal microvascular abnormality KCS Keratoconjunctivitis sicca KP Keratic precipitates LASEK Laser epithelial keratomileusis LASIK Laser in-situ keratomileusis LTG Low-tension glaucoma MI Myocardial infarction MS Multiple sclerosis NIDDM Non-insulin-dependent diabetes mellitus NRR Neuro-retinal rim NS Nuclear sclerosis NTG Normal tension glaucoma PDR Proliferative diabetic retinopathy PDT Photodynamic therapy PK Penetrating keratoplasy POAG Primary open-angle glaucoma PPDR Preproliferative diabetic retinopathy PRA Pan-retinal ablation PRK Photorefractive keratectomy PRP Pan-retinal photocoagulation PSCC Posterior sub-capsular cataract PVD Posterior vitreous detachment RD Retinal detachment RK Radial keratotomy RP Retinitis pigmentosa SEAL Superior epithelial arcuate lesion SLK Superior limbic keratoconjunctivitis SPK Superficial punctate keratitis SPEE Superficial punctate epithelial erosions Sx Symptoms TIA Transient ischaemic attack T1 diab Type 1 diabetes T2 diab Type 2 diabetes Tx Vx Treatment Vomiting Pharmacy and drug terms Abbreviation Term A.d. As directed bd/bid Twice a day gt One drop gtt drops GSL General sales list Gutt/g Guttae (drops) Meds Medications Nocte At night Occ Ointment od Once a day otc Over the counter (bought medication) P Pharmacy (drug) POM Prescription-only medicine prn When required q Every (e.g. q2h – every two hours) qds/qid Four times a day Rx Prescription tds/tid Three times a day ung Ointment