SFA MODULE 14 (SENSORY) Flashcards
Narrow-angle glaucoma develops when the angle is decreased between the:
retina and ciliary process.
lens and ciliary body.
iris and cornea.
iris and lens.
iris and cornea.
Which term refers to near-sightedness?
Hyperopia
Presbyopia
Myopia
Diplopia
MYOPIA
Which fluid is found surrounding the optic disc?
Aqueous humor
Vitreous humor
Cerebrospinal fluid
Tears
Cerebrospinal fluid
Which of the statements apply to infection of the eye by Staphylococcus aureus? 1. It involves the conjunctiva. 2. It is highly contagious. 3. It is commonly known as “pinkeye.” 4. It usually causes keratitis and permanent visual loss.
1, 3
2, 3
2, 4
1, 2, 3
1,2,3
Herpes simplex virus is a common cause of:
conjunctivitis.
corneal ulceration and scarring.
eye infection in the neonate.
total blindness.
corneal ulceration and scarring.
Which disorder is manifested by loss of peripheral vision?
Retinal detachment
Chronic (wide-angle) glaucoma
Cataract
Macular degeneration
Chronic (wide-angle) glaucoma
What must happen for the pupil of the eye to dilate?
The circular muscle of the iris must contract.
Cranial nerve III must be activated.
Stimulation of the sympathetic nervous system is required.
The optic nerve must be stimulated
Stimulation of the sympathetic nervous system is required.
Which of the following is a sign of a detached retina?
Painless blurring of vision
Eye pain, halos around lights, and nausea
Progressive loss of central vision
No pain, development of a dark area in the visual field
No pain, development of a dark area in the visual field
How does otosclerosis cause hearing loss?
Fixation of the stapes to the oval window
Adhesions between the ossicles
Fibrosis in the tympanic membrane
Overgrowth of bone obstructing the auditory tube
Fixation of the stapes to the oval window
What does the inner ear contain?
Malleus, incus, and stapes
Organ of Corti and semicircular canals
Tympanic membrane and auditory canal
Ossicles and oval window
Organ of Corti and semicircular canals
Which of the following is often the first sign of ototoxicity from drugs or chemicals?
Sudden total loss of hearing
Tinnitus
Severe pain in ear
Fluid exudate draining from ear
Tinnitus
What do the extrinsic muscles of the eye control?
Movement of the eyeball
Movement of the eyelid
Size of the pupil
Shape of the lens
Movement of the eyeball
The involuntary abnormal movement of one or both eyes is referred to as:
strabismus.
nystagmus.
presbyopia.
diplopia.
nystagmus.
Which statement does NOT apply to chronic glaucoma?
Degeneration and obstruction of the trabecular network
Gradual increase in intraocular pressure
Abnormally narrow angle between the cornea and iris
Damage to the retina and optic nerve
Abnormally narrow angle between the cornea and iris
Trachoma is indicated by the presence of:
purulent exudate and red sclerae.
corneal abrasions by the infected eyelids.
diplopia and cloudy lens.
ptosis and fixed dilation of the pupil.
corneal abrasions by the infected eyelids.
Which of the following statements is TRUE?
Conduction deafness results from inner ear damage.
Cochlear implants may restore hearing in cases of sensorineural loss.
Damage to the auditory area of the brain causes deafness in one ear.
Cochlear implants can replace the auditory pathway in all deaf individuals.
Cochlear implants may restore hearing in cases of sensorineural loss.
In a case of acute otitis media, what would a purulent discharge in the external canal of the ear and some pain relief likely indicate?
Infection of the external ear
Obstruction of the auditory tube
Rupture of the tympanic membrane
Spread of infection into the mastoid cells
Rupture of the tympanic membrane
Which of the following is an example of conduction deafness?
Damage to the organ of Corti
Degeneration of cranial nerve VIII
Adhesions reducing the movement of the ossicles
Trauma affecting the temporal lobe
Adhesions reducing the movement of the ossicles
Which of the following is caused by an irregular curvature of the cornea or lens?
Nystagmus
Astigmatism
Hyperopia
Strabismus
ASTIGMATISM
The semicircular canals of the inner ear are responsible for:
balance and equilibrium.
hearing in the upper frequency range.
hearing in the lower frequency range.
balancing the pressure in the auditory canal.
balance and equilibrium.
Which is the early effect of age-related macular degeneration?
Loss of central visual acuity
Intermittent pain and blurred vision
Loss of peripheral vision
Loss of night vision and color perception
Loss of central visual acuity
Severe pain develops with narrow-angle glaucoma when the:
pupils are constricted.
pupils are dilated.
lens changes shape.
excess vitreous humor forms.
pupils are dilated.
Which of the following involves a gradual clouding of the lens of the eye?
Glaucoma
Cataract
Macular degeneration
Keratitis
CATARACT
Why does vertigo occur with Ménière’s syndrome?
Fluid is lost from the inner ear.
Increased blood pressure causes edema in the middle and inner ears.
Damage occurs to the vestibular branch of the auditory nerve.
Excessive endolymph impairs the function of hair cells in the labyrinth.
Excessive endolymph impairs the function of hair cells in the labyrinth.
The lens and cornea are nourished by:
small capillaries.
tears.
vitreous humor.
aqueous humor.
aqueous humor.
An infection that damages the auditory nerve can cause what type of hearing loss?
Sensorineural
Conduction
Semiacute
Inflammatory
Sensorineural
Loss of the left visual field results from damage to the:
left optic nerve.
right optic nerve.
left occipital lobe.
right occipital lobe.
right occipital lobe.
