Special Senses

Eyes: opt/i, opt/o, optic/o, ophthalm/o

receptor organs for the sense of sight

Iris: ir/i, ir/o, irid/o, irit/o

controls the amount of light entering the eye

lens: phac/o, phak/o

focuses rays of light on the retina

retina: retin/o

converts light images into electrical impulses and transmits them to the brain

lacrimal apparatus: dacryocyst/o, lacrim/o

accessory structures of the eyes that produce, store, and remove tears

ears: acous/o, acoust/o, audi/o, audit/o, ot/o

receptor organs for the sense of hearing; also help maintain balance

outer ear: pinn/i

transmits sound waves to the middle ear

middle ear: myring/o, tympan/o

transmits sound waves to the inner ear

inner ear: labyrinth/o

receives sound vibrations and transmits them to the brain

blephar/o

eyelid

-cusis

hearing

irid/o

iris, colored part of eye

kerat/o

horny, hard, cornea

myring/o

tympanic membrane, eardrum

ophthalm/o

eye, vision

opt/o

eye, vision

-opia

vision condition

ot/o

ear, hearing

phak/o

lens of eye

presby/o

old age

retin/o

retina, net

scler/o

sclera, white of eye, hard

trop/o

turn, change

tympan/o

tympanic membrane eardrum