AC/A

accommodative convergence/accommodation

AC IOL

anterior chamber IOL

ADD

attention deficit disorder

ADHD

attention deficit hyperactivity disorder

ARMD

age-related macular degeneration

BD

base down

BI

base in

b.i.d.

twice a day

BO

base out

BP

blood pressure

bpm

beats per minute

BU

base up

BVA

best or best-corrected visual acuity

C/D

cup-to-disc ratio

CF

counting fingers

cm

centimeter

CL

contact lens

CN

cranial nerve

COPD

chronic obstructive pulmonary disease

CPAP

continuous positive airway pressure

cpm

cycles per minute

CT

computed tomography

d

day

D

Diopter

DC

diopter cylinder

Dk

permeabitily coefficient

DS

diopter sphere

ED

effective diameter

EOM

extraocular muscle

ER

ESR

erythrocyte sedimentation rate

F

Fahrenheit

FA

fluorescein angiography

FDT

frequency-doubling technology

FTA-Abs

fluorescent treponemal antibody absorption test

FTFC

full to finger counting

GP CL

gas permeable contact lens

GERD

gastroesophageal reflux disease

gt.

drop (gutta)

gtt.

drops (guttae)

h

hour

h.s.

at bedtime

H

horizontal

HA

headache

HgbA1c

hemoglobin A1c or glycosylated hemoglobin

HIV

human immunodeficiency virus

HLA-B27

human leukocyte antigen B27

HM

hand motion

HRT

Heidelberg Retinal Tomograph

IOL

intraocular lens

IOP

intraocular pressure

IU

international units

IV

intravenous

K

keratometry reading

LASEK

laser-assisted subepithelial kertomileusis

LASIK

laser in situ keratomileusis

MEM

monocular estimation method

mg

milligram

ml

milliliter

mm

millimeter

mmHg

millimeters of mercury

MRI

magnetic resonance imaging

MRSA

methicillin-resistant Staphylococcus aureus

NaCl

sodium chloride

NaFl

fluorescein sodium

NKDA

no known drug allergies

NKMA

no known medical allergies

NLP

no light perception

NRA

negative relative accommodation

NS

nuclear scelrosis

OCT

optical coherence tomography

OD

right eye (ocular dexter)

OS

left eye (ocular sinister)

OU

both eyes (oculi uniter)

PAL

progressive addition lens

PC IOL

posterior chamber intraocular lens

PD

pupillary distance

PERRL

pupils equal, round and reactive to light

PH

pinhole

PHNI

pinhole no improvement

p.o.

by mouth (per os)

PRA

positive relative accommodation

PRK

photorefractive keratectomy

PRN

as needed (pro re nata)

PVD

posterior vitreous detachment

q

each, every (quaque)

q.i.d.

four times a day

RAPD

relative afferent pupillary disorder

RK

radial keratotomy

RPE

retinal pigment epithelium 

RPR

rapid plasma reagin

Rx

prescription

SCL

soft contal lens

STAT

immediately

TBUT

tear break-up time

t.i.d.

three times a day

ung

ointment

UV

ultraviolet

V

vertical

VA

visual acuity

VEGF

vascular endothelial growth factor

VF

visual field

YAG

yttrium aluminum garnet