Eyes and Ears Flashcards
(111 cards)
accommodation
ability of the eye to see objects in the distance and then adjust to a close object
astigmatism
abnormality of the eye in which the refraction of a ray of light is spread over a diffuse area rather than sharply focused on the retina
audiometer
instrument used to measure hearing
cataract
opacity of the lens of the eye
cerumen
yellow or brown waxy substance produced in the ceruminous glands of the ear
color deficiency
genetic or acquired abnormality in color perception
conjuctivitis
inflammation of the conjuctiva caused by bacteria or virus
corneal abrasion
injury to the translucent anterior structure of the eye
equilibrium
state of balance, which is controlled by the structures of the inner ear
glaucoma
disorder that involves increased intraocular pressure, resulting in atrophy of the optic nerve
gustation
sense of taste
hyperopia
error of refraction in which affected individuals can see distant objects clearrly but cannot see near objects, also called farsightedness
Meniere disease
syndrome characterized by recurring episodes of hearing loss, tinnitus, and vertigo that can progressively lead to deafness
myopia
error of refraction in which light rays are focused in front of the retina, enabling the person to see distinctly for only a short distance, also called nearsightedness
olfaction
sense of smell
ophthalmoscope
handheld instrument used to view the internal structures of the eye
otitis
inflammation of the ear
otoscope
instrument used to visualize the internal structures of the ear, ear canal, and ear drum
presbyopia
permanent loss of accommodation of the crystalline lens that occurs in people over the age of 40
sinusitis
inflammation of the sinuses, which can be caused by a virus, bacteria or allergy
tinnitus
ringing of the ears
visual acuity
ability to see at different distances
acous/o
audi/o
hearing
acoustic
pertaining to hearing