CH 11 Flashcards
(28 cards)
a corneal transplant, also known as keratoplasty, is the surgical replacement of a scarred or diseased cornea with clear corneal tissue from a donor
true
swelling surrounding the eye or eyes is known as ________ edema
periorbital
which hearing loss is a gradual loss of sensorineural hearing that occurs as the body ages
presbycusis
A/an _________ disorder is a focusing problem that occurs when the lens and cornea do not bend light so that it focuses properly on the retina
refractive
glaucoma is the loss of transparency of the lens, which causes a progressive loss of visual clarity
false
The pressure-related ear discomfort often caused by changes in pressure when flying is known as ____________________.
barotrauma
The diagnostic procedure used to detect corneal abrasions is known as ____________________ staining.
fluorescein
Hyperopia is commonly known as farsightedness.
true
The ____ are important in maintaining equal atmospheric pressure within the middle ear.
eustachian tubes
Which term describes the simultaneous inward movement of both eyes toward each other to maintain single binocular vision?
convergence
A ringing, buzzing, or roaring sound in one or both ears is known as ____________________.
tinnitus
The ____ is the opaque middle layer of the eyeball.
choroid
____________________ is the drooping of the upper eyelid that is usually due to paralysis.
ptosis
A corneal abrasion is a inflammation of the cornea caused by an infection or injury.
false
Color vision is best in the ____, which is a pit in the middle of the macula.
fovea centralis
A ____ test is performed to determine losses in peripheral vision.
visual field testing
A conductive hearing loss is one in which the inner ear does not transmit sound normally.
false
Which term describes an area of absent or depressed vision surrounded by an area of normal vision?
scotoma
A person is legally blind when his or her best-corrected vision is reduced to 20/200 or less.
true
Crying is the overflowing of tears from the ____.
lacrimal canals
The malleus is one of the auditory ossicles.
true
The anterior chamber of the eye is located behind the cornea and in front of the iris.
true
Otoplasty is the surgical repair of the auditory canal.
false
The term meaning the turning outward of the eyelid edge is ____________________.
ectropion