Eyes and Ears Flashcards
Eyes - combining form(s)
opt/i, opt/o, optic/o, ophthalm/o
Iris - combining form(s)
ir/i, ir/o, irid/o, irit/o
Lens - combining form(s)
phac/o, phak/o
Retina - combining form(s)
retin/o
Lacrimal Apparatus - combining form(s)
dacryocyst/o, lacrim/o
Ears - combining form(s)
acous/o, acoust/o, audi/o, audit/o, ot/o
Outer Ear - combining form(s)
pinn/i
Middle Ear - combining form(s)
myring/o, tympan/o
Inner Ear - combining form(s)
labyrinth/o
Eyelid - combining form(s)
blephar/o
Hearing - suffix
-cusis
Cornea, horny, hard - combining form(s)
kerat/o
Vision condition - suffix
-opia
Old age - combining form(s)
presby/o
Ptosis
Drooping of the upper eyelid, usually caused by paralysis
Hordeolum
Stye; pus-filled lesion on the eyelid that is usually painful, caused by an acute infection of the sebaceous gland
Diabetic retinopathy
Damage to the retina due to uncontrolled diabetes
Nystagmus
An involuntary, constant, rhythmic movement of the eyeball; congenital, due to neurological injury, or drug use
Glaucoma
A disease of increased intraocular pressure that leads to nerve damage. Blockage of fluid flow out the eye causes the pressure buildup.
Open-angle (chronic): the trabecular meshwork gradually becomes blocked, causing a pressure buildup
Closed-angle (acute): the opening between the cornea and iris narrows so that fluid cannot reach the trabecular meshwork. A sudden increase in pressure can cause severe pain, nausea, redness of the eye, and blurred vision. Blindness can occur quickly without treatment.
Diplopia
Double vision, perception of two images of a single object
Hemianopia
Blindness in one-half of the visual field
Monochromatism
Color blindness, a genetic condition caused by the absence of certain cones in the retina
Strabismus
A disorder in which the eyes point in different directions
Esotropia: cross-eyes, inward deviation of one or both eyes
Exotropia: walleye, an outward deviation of one eye relative to the other
Hyperopia & Myopia
Farsightedness and nearsightedness