Vision and Hearing Exam
Questions and Answers 100%
Correct
What are the typical causes of vision defects? - ANSWER - Irregularities in corneal
curvatures, focusing power of the lens or length of the eyeball.
What is Myopia? - ANSWER - Near-sightedness, the focus of the eye is to shallow
(focused point is before the retina)
What is Hyperopia? - ANSWER - Far-sightedness, the focus of the eye is to deep
(focused point is past the retina)
What is Presbyopia? - ANSWER - "Old eyes", caused by the loss of elasticity in the
lens of the eye.
What is Astigmatism? - ANSWER - Caused by a miss curvature in PART of the ocular
system.
Define Strabismus. - ANSWER - When one eye is not alined correctly. Caused by a
miss match in the length of eye muscles or a weak eye muscle.
What is Nystagmus? - ANSWER - An uncontrollable movement of the eyes (shaking),
caused by issues in the CNS.
What is conjunctivitis? - ANSWER - Inflammation or infection of the conjunctiva that
lines the eyelid / covers the sclera.
What are the causes of AMD? - ANSWER - A combo of genetic factors, exposure to
UV light and drugs.
, What are the causes of AMD? - ANSWER - A combo of genetic factors, exposure to
UV light and drugs.
What is AMD? - ANSWER - The degeneration of the fovea centralism in the macula
lute, w/ highest concentration of damage in the cones.
What is AMD? - ANSWER - The degeneration of the fovea centralism in the macula
lute, w/ highest concentration of damage in the cones.
What are the common types of conjunctivitis? - ANSWER - 1) Allergens and irritating
chemicals
2) Staphylococcus (Pink eye)
3) Chlamydia trachomatis
4) Gonorrhea
5) Stye (infection of the eyelid hair follicles)
6) Herpes simplex virus (causes Keratitis (corneal infection) and ulceration,
symptoms are severe pain and photophobia)
7) Contact lenses (can cause Keratitis or conjunctivitis)
8) Contaminated makeup
What are the common types of eye trauma? - ANSWER - 1) Abrasions - causes visual
loss by damaging the cornea
2) Penetration - damaging the internal eye structures, loss of vitreous humor, entry
of microbes into the structure.
Define Glaucoma. - ANSWER - Increasing intra-ocula pressure caused by the
accumulation of aqueous humor.
What are the two causes of Glaucoma? - ANSWER - 1) Open angle (chronic) -
blocked trabecular mesh, thus the canal of Schlemm preventing fluid from draining
back into the blood stream
2) Narrow angle (acute) - the iris blocks the drainage of fluid into the canal of
Schlemm
Define Cataracts. - ANSWER - Progressive opacity / clouding of the eye.
Questions and Answers 100%
Correct
What are the typical causes of vision defects? - ANSWER - Irregularities in corneal
curvatures, focusing power of the lens or length of the eyeball.
What is Myopia? - ANSWER - Near-sightedness, the focus of the eye is to shallow
(focused point is before the retina)
What is Hyperopia? - ANSWER - Far-sightedness, the focus of the eye is to deep
(focused point is past the retina)
What is Presbyopia? - ANSWER - "Old eyes", caused by the loss of elasticity in the
lens of the eye.
What is Astigmatism? - ANSWER - Caused by a miss curvature in PART of the ocular
system.
Define Strabismus. - ANSWER - When one eye is not alined correctly. Caused by a
miss match in the length of eye muscles or a weak eye muscle.
What is Nystagmus? - ANSWER - An uncontrollable movement of the eyes (shaking),
caused by issues in the CNS.
What is conjunctivitis? - ANSWER - Inflammation or infection of the conjunctiva that
lines the eyelid / covers the sclera.
What are the causes of AMD? - ANSWER - A combo of genetic factors, exposure to
UV light and drugs.
, What are the causes of AMD? - ANSWER - A combo of genetic factors, exposure to
UV light and drugs.
What is AMD? - ANSWER - The degeneration of the fovea centralism in the macula
lute, w/ highest concentration of damage in the cones.
What is AMD? - ANSWER - The degeneration of the fovea centralism in the macula
lute, w/ highest concentration of damage in the cones.
What are the common types of conjunctivitis? - ANSWER - 1) Allergens and irritating
chemicals
2) Staphylococcus (Pink eye)
3) Chlamydia trachomatis
4) Gonorrhea
5) Stye (infection of the eyelid hair follicles)
6) Herpes simplex virus (causes Keratitis (corneal infection) and ulceration,
symptoms are severe pain and photophobia)
7) Contact lenses (can cause Keratitis or conjunctivitis)
8) Contaminated makeup
What are the common types of eye trauma? - ANSWER - 1) Abrasions - causes visual
loss by damaging the cornea
2) Penetration - damaging the internal eye structures, loss of vitreous humor, entry
of microbes into the structure.
Define Glaucoma. - ANSWER - Increasing intra-ocula pressure caused by the
accumulation of aqueous humor.
What are the two causes of Glaucoma? - ANSWER - 1) Open angle (chronic) -
blocked trabecular mesh, thus the canal of Schlemm preventing fluid from draining
back into the blood stream
2) Narrow angle (acute) - the iris blocks the drainage of fluid into the canal of
Schlemm
Define Cataracts. - ANSWER - Progressive opacity / clouding of the eye.
