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HA Eyes test questions and answers(100- accuracy).
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HA Eyes test questions and answers(100- accuracy).
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HA Eyes test questions andanswers(100% accuracy)
What does the lacrimal apparatus do? - answer provides constant
irrigation to keep the conjunctiva and cornea moist and lubricated
What are the two muscles that allow looking to the far right? - answer
right lateral rectus, and the left medial rectus
The abducens nerve (CN VI) innervates which muscle? - answer the lateral
rectus muscle (which abducts the eye)
The trochlear nerve (CN IV) innervates which muscle? - answer the
superior oblique muscle
The oculomotor nerve (CN III) innervates which muscle? - answer all the
rest- superior, inferior, and medial rectus and inferior oblique muscles
The eye is an asymmetric sphere composed of three concentric coats: -
answer 1. outer fibrous sclera
2. middle vascular choroid
3. inner nervous retina
What does the choroid do? - answer has dark pigmentation to prevent
light from reflecting internally and is heavily vascularized to deliver blood
to the retina
Which cranial nerve causes constriction of the pupil? - answer 3
What does the lens do when focusing on near and far objects? - answer
lens bulges for focusing on near objects and flattens for far objects
, What is a direct light reflex? - answer when one eye is exposed to bright
light and there is constriction of that pupil
What is a consensual light reflex? - answer when one eye is exposed to
bright light and simultaneous constriction of the other pupil occurs
What happens to the lacrimal glands with the aging adult? - answer they
involute which causes decreased tear production and the feeling of
dryness and burning
By 70 years of age the normally transparent fibers of the lens begin to
thicken and yellow; this is the beginning of? - answer a cataract
In the older adult, what are the most common causes of decreased visual
functioning? - answer -cataract formation
-glaucoma
-age-related macular degeneration
-diabetic retinopathy
What is cataract formation? - answer a clouding of the crystalline lens
from clumping of proteins
What is glaucoma? - answer an optic nerve neuropathy characterized by
loss of peripheral vision, caused by increased intraocular pressure
What is age-related macular degeneration? - answer a loss of central
vision caused by yellow deposits and neovascularity in the macula
Individuals with light retinas generally have? - answer better night vision
but can have pain in an environment that has too much light
Visual impairment is? - answer not being able to see letters on the line
20/50 or below on the eye chart
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