Eye: Root/prefix and example terms

Ambly/o

dull, dim

Amblyopia (ambly/o)

condition of dim or reduced vision (lazy eye)

blephar/o

eyelid

Blepharitis (blephar/o)

inflammation of the eyelid

conjunctiv/o

conjunctiva

Conjunctivitis (conjuntiv/o)

inflammation of the eyelid

cor/o

pupil

Anisocoria (cor/o)

condition of unequal pupil size

cyclo/o

ciliary body or muscle of the eye

Cycloplegia (cyclo/o)

paralysis of the eye’s ciliary muscle

dacry/o

tears, tear duct

Dacryostenosis (darcy/o)

narrowing of the tear duct

dipl/o

double

Diplopia (dipl/o)

double vision

glauc/o

gray

Glaucoma (glauc/o)

eye disease causing increased pressure and grayish appearance

kerat/o

cornea

Keratitis (kerat/o)

inflammation of the cornea

lacrim/o

tears

Lacrimation (lacrim/o)

production of tears

mi/o

smaller, less

Miosis (mi/o)

abnormal constriction of the pupil

mydr/o

widen, enlarge

Mydriasis (mydr/o)

dilation of the pupil

nyct/o

night

Nyctalopia (nyct/o)

night blindness

ocul/o

eye

Ocular (ocul/o)

pertaining to the eye

ophthalm/o

eye

Ophthalmology (ophthalm/o)

study of the eye and its disorders

opt/o, opti/c

eye, vision

Optometry (opt/o)

measurement and testing of vision

palperb/o

eyelid

Palpebral (plaber/o)

pertaining to the eyelid

papill/o

optic disc

Papilledema (papill/o)

swelling of the optic disc

phac/o, pak/o

lens of the eye

Phacoemulsification (phac/o)

ultrasound removal of the eye lens

phot/o

light

Photophobia (phot/o)

sensitivity to light

presby/o

old age

Presbyopia (predby/o)

age-related loss of near vision

scler/o

sclera

scot/o

darkness

Scotoma (scot/o)

area of partial blindness or darkness in vision

vitre/o

glossy

Vitreous humor (vitre/o)

clear, glassy substance inside the eye

Opia

vision

Myopia (-opia)

nearsightedness; difficulty seeing distant objects

Diplopia (-opia)

double vision

opsia

vision

Hemianopsia (opsia)

loss of vision in half of the visual field

tropia

to turn

Esotropia (-tropia)

inward turning of one or both eyes