Eye examination terms

AC	Anterior chamber	L/R	L hyperphoria
AC 4/4	grade 4 Anterior chamber angle	LSOT	Left esotropia
AC 3/4	grade 3 Anterior chamber angle	LVA	Low vision aid
AC 2/4	grade 2 Anterior chamber angle	MDU	Mallett distance unit
AC 1/4	grade 1 Anterior chamber angle	MNU	Mallett near unit
AC 0/4	grade 0 Anterior chamber angle (closed)	M.Wing	Maddox Wing
AC/A	Accommodative convergence/ accommodation ratio	MR	Maddox Rod
Acc	Accommodation	NCT	Non-contact tonometer
Ad	Advised	ND	Neutral density filter
Add	Addition	NPL	No perception of light
AIT	After-image transfer	NPC	Near point of convergence or no previous correction
ALT	Alternating	NRC	Normal retinal correspondence
ALT SOT	Alternating esotropia	NV	Near vision
ALT XOT	Alternating exotropia	NWT	Normal wearing time
ARC	Anomalous retinal correspondence	o symptoms	Zero symptoms
A/V	Arteriole/Venue ratio	ϕ	Horizontal orthophoria
BE	Both eyes	θ	Vertical orthophoria
BIO	Binocular indirect ophthalmoscopy	⊕	Horizontal & vertical orthophoria
BSV	Binocular single vision	OCs	Optical centres
BV	Binocular vision	Occ.	Occupation
BVD	Back vertex distance	OH	Ocular history
BVP	Back vertex power	OMB	Oculo motor or muscle balance
CD	Centration distance	ONH	Optic nerve head
C/D	Cup/disc ratio	Oph	Ophthalmoscopy
CF	Count fingers vision – state distance	PD	Pupillary distance
CT	Cover test	PERRLA	Pupils equal, round, reactive to light and accommodation
CCT	Central corneal thickness	Sx	Symptoms
c/u	Check-up	PH	Pinhole
CW	Close work	PL	Perception of light
Δ	Prism dioptre	POH	Previous ocular history
D	Dioptres	PPA	Peripapillary atrophy
DC	Dioptres cylinder	Px	Patient
DNA	Did not attend	RAPD	Relative afferent pupillary defect
DOB	Date of birth	RE	Right eye
DS	Dioptres sphere	Ret.	Retinoscopy
DV	Distance vision	RHyperT	Right Hypertropia
DVD	Dissociated vertical divergence	RHypoT	Right Hypotropia
EF	Eccentric fixation	RNFL	Retinal nerve fibre layer
Ext	External (eye)	RPE	Retinal pigment epithelium
FB	Foreign body	RSOT	Right Esotropia
FD	Fixation disparity	Rx	Prescription
FF	Foveal fixation	SLE	Slit lamp examination
FOH	Family ocular history	SLM	Slit lamp microscope
F/U	Follow up appointment	SOP/ESOP	Esophoria
GH	General health	SOT/ESOT	Esotropia
G(M)P	General (medical) practitioner	Supp.	Suppression
HA	Headaches	V	Vision (unaided)
HARC	Harmonious abnormal retinal correspondence	VA	Visual acuity (corrected)
HM	Hand motion vision – state distance	VAL	Left visual acuity
Hx	History	VAR	Right visual acuity
IOL	Intra-ocular lens implant	VDU	Visual display unit
IOP	Intra-ocular pressure	VF	Visual field
ISNT	Inferior, Superior, Nasal, Temporal (rule used to assess optic disc appearance)	VPS	Variable prism stereoscope
K	Keratometry	WD	Working distance
LE	Left eye	X/12	X months
LHyperT	Left hypertropia	X/52	X weeks
LHypoT	Left hypotropia	X/7	X days
LOs	Lenticular opacities	XOP/EXOP	Exophoria
L/R FD	L/R fixation disparity	XOT/EXOT	Exotropia

NB: NAD (no abnormality detected) is frequently used but is not recommended