NURS 3134 – Questions With Verified Solutions
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Terms in this set (281)
Eye strain develops after reading, computer work, or other
visually tedious tasks from tightening of the eye muscles after
Asthenopia (Eye Strain) maintaining a constant focal distance. Symptoms include fatigue,
red eyes, eye strain, pain in or around the eyes, blurred vision,
headaches, and, rarely, double vision.
Unexpected (football-shaped) curvature of the cornea prevents
light from focusing on the retina. Images appear blurred because
Astigmatism not all optical planes are focused. This condition is corrected
with a cylindrical lens with more focusing power in one axis than
the other.
Images of distant objects focus in front of, instead of on, the
retina from an imperfection in the shape of the eye or lens.
Myopia occurs in approximately one-quarter of the U.S.
Myopia (Nearsightedness)
population. People with myopia can clearly see objects up close
but have difficulty seeing distant objects. Myopia is corrected
with a concave lens that moves the focus back to the retina.
Images of near objects focus behind, instead of on, the retina
from an imperfection in the shape of the eye or lens.
Approximately 25% of the U.S. population has hyperopia. People
Hyperopia (Farsightedness)
with it can see distant objects clearly but have difficulty seeing
objects up close. A convex lens is used to treat hyperopia,
moving the focus forward onto the retina
This symptom, considered a natural part of aging, is believed to
result from loss of elasticity of the crystalline lens. As this
happens, the ciliary muscles that bend and straighten the lens
Presbyopia lose their power to accommodate. This condition affects near
vision and therefore is corrected with a convex lens in front of
the eye in the form of half-glass or as bottom of a bifocal or
multifocal lens if other correction is needed for distance viewing.
, Color blindness (inability to distinguish colors) has a genetic
component. It occurs in 2%-8% of males and 0.5% of females of
European descent. The cones of the eye, located in the macula,
contain blue, green, and red pigments that allow color sight.
Color blindness results with damage to the cones or owing to a
cone with missing pigment. The most common form is the
Color Blindness red/green. No effective treatment for color blindness exists.
Many with it learn to compensate for the deficit and at times can
discern details that a normal-sighted person would miss. Most
people are not totally color blind but have deficiencies that
cause some challenges, such as with discerning traffic lights,
weather forecasts, and light-emitting diodes; purchasing clothes;
selecting crayons; cooking; and applying makeup.
Blindness means loss of vision or visual acuity that cannot be
corrected with glasses or contact lenses. Partial blindness refers
to those with very limited vision; complete blindness means an
inability to see anything, including light. People with vision worse
than 20/200 are classified as legally blind in most U.S. states.
Blindness
Numerous causes of blindness include congenital anomalies,
diabetic complications, glaucoma, macular degeneration, and
trauma. Worldwide, the leading causes of blindness are
cataracts, river blindness (onchocerciasis), trachoma, leprosy, and
vitamin A deficiency.
Involuntary rhythmic wobbling of the eyes and degree and
Nystagmus direction of the movement can impair vision, with impairment
varying greatly among patients.
Different forms of strabismus; appropriate evaluation and
treatment required for this condition in which a person cannot
align both eyes simultaneously under normal conditions. To a
Strabismus certain degree, strabismus occurs in 5% of all children.
Strabismus is not the same as amblyopia. Children do not
outgrow strabismus. Strabismus can be constant (eye turns out all
the time) or intermittent (turning out only some of the time).
Esotropia cross-eyed Strabismus; inward turning of the eye
Exotropia Wall Eye Strabismus, the outward turn of one of the eyes.
Jaundice Yellowing of the sclera, which indicates liver disease
Rare condition affecting one eye, with abnormalities in
Iris Nevus appearance of the iris, pain, and decreased vision; patients may
also have glaucoma on the same side.
Blood in the anterior chamber of the eye, usually caused by
Hyphemia
blunt trauma
Inflammation of the margin of the eyelid; two types are anterior
Blepharitis and posterior. Most common type is seborrheic, followed by
staphylococcal, and then rosacea-associated blepharitis.
A cyst (meibomian gland lipogranuloma) in the eyelid resulting
from inflammation of the meibomian gland. Most often on the
upper eyelid, it is sometimes confused with a hordeolum (sty); it
Chalazion
can be differentiated because it is usually painless and tends to
be larger. It rarely resolves spontaneously and usually requires
treatment.
Most often associated with a watery discharge from the eye that
may be accompanied by sinus congestion and rhinorrhea (runny
Viral Conjunctivitis
nose), slightly injected (diffusely pink), and numerous follicles on
the inferior conjunctiva
Should be suspected if there is purulent (yellow or green)
discharge, injected (red sclera), and numerous inflamed follicles.
Bacterial Conjunctivitis
Occasional blurring is common; should not be painful, constant
blurring, or photophobia.
Save
Students also studied
INBDE Orthodontics NBDE II Review - Prosthodontics Perio Study
201 terms 69 terms Teacher 78 terms
dong_lee82 Preview melissa_jarvis7 Preview Hunter_Charters
Terms in this set (281)
Eye strain develops after reading, computer work, or other
visually tedious tasks from tightening of the eye muscles after
Asthenopia (Eye Strain) maintaining a constant focal distance. Symptoms include fatigue,
red eyes, eye strain, pain in or around the eyes, blurred vision,
headaches, and, rarely, double vision.
Unexpected (football-shaped) curvature of the cornea prevents
light from focusing on the retina. Images appear blurred because
Astigmatism not all optical planes are focused. This condition is corrected
with a cylindrical lens with more focusing power in one axis than
the other.
Images of distant objects focus in front of, instead of on, the
retina from an imperfection in the shape of the eye or lens.
Myopia occurs in approximately one-quarter of the U.S.
Myopia (Nearsightedness)
population. People with myopia can clearly see objects up close
but have difficulty seeing distant objects. Myopia is corrected
with a concave lens that moves the focus back to the retina.
Images of near objects focus behind, instead of on, the retina
from an imperfection in the shape of the eye or lens.
Approximately 25% of the U.S. population has hyperopia. People
Hyperopia (Farsightedness)
with it can see distant objects clearly but have difficulty seeing
objects up close. A convex lens is used to treat hyperopia,
moving the focus forward onto the retina
This symptom, considered a natural part of aging, is believed to
result from loss of elasticity of the crystalline lens. As this
happens, the ciliary muscles that bend and straighten the lens
Presbyopia lose their power to accommodate. This condition affects near
vision and therefore is corrected with a convex lens in front of
the eye in the form of half-glass or as bottom of a bifocal or
multifocal lens if other correction is needed for distance viewing.
, Color blindness (inability to distinguish colors) has a genetic
component. It occurs in 2%-8% of males and 0.5% of females of
European descent. The cones of the eye, located in the macula,
contain blue, green, and red pigments that allow color sight.
Color blindness results with damage to the cones or owing to a
cone with missing pigment. The most common form is the
Color Blindness red/green. No effective treatment for color blindness exists.
Many with it learn to compensate for the deficit and at times can
discern details that a normal-sighted person would miss. Most
people are not totally color blind but have deficiencies that
cause some challenges, such as with discerning traffic lights,
weather forecasts, and light-emitting diodes; purchasing clothes;
selecting crayons; cooking; and applying makeup.
Blindness means loss of vision or visual acuity that cannot be
corrected with glasses or contact lenses. Partial blindness refers
to those with very limited vision; complete blindness means an
inability to see anything, including light. People with vision worse
than 20/200 are classified as legally blind in most U.S. states.
Blindness
Numerous causes of blindness include congenital anomalies,
diabetic complications, glaucoma, macular degeneration, and
trauma. Worldwide, the leading causes of blindness are
cataracts, river blindness (onchocerciasis), trachoma, leprosy, and
vitamin A deficiency.
Involuntary rhythmic wobbling of the eyes and degree and
Nystagmus direction of the movement can impair vision, with impairment
varying greatly among patients.
Different forms of strabismus; appropriate evaluation and
treatment required for this condition in which a person cannot
align both eyes simultaneously under normal conditions. To a
Strabismus certain degree, strabismus occurs in 5% of all children.
Strabismus is not the same as amblyopia. Children do not
outgrow strabismus. Strabismus can be constant (eye turns out all
the time) or intermittent (turning out only some of the time).
Esotropia cross-eyed Strabismus; inward turning of the eye
Exotropia Wall Eye Strabismus, the outward turn of one of the eyes.
Jaundice Yellowing of the sclera, which indicates liver disease
Rare condition affecting one eye, with abnormalities in
Iris Nevus appearance of the iris, pain, and decreased vision; patients may
also have glaucoma on the same side.
Blood in the anterior chamber of the eye, usually caused by
Hyphemia
blunt trauma
Inflammation of the margin of the eyelid; two types are anterior
Blepharitis and posterior. Most common type is seborrheic, followed by
staphylococcal, and then rosacea-associated blepharitis.
A cyst (meibomian gland lipogranuloma) in the eyelid resulting
from inflammation of the meibomian gland. Most often on the
upper eyelid, it is sometimes confused with a hordeolum (sty); it
Chalazion
can be differentiated because it is usually painless and tends to
be larger. It rarely resolves spontaneously and usually requires
treatment.
Most often associated with a watery discharge from the eye that
may be accompanied by sinus congestion and rhinorrhea (runny
Viral Conjunctivitis
nose), slightly injected (diffusely pink), and numerous follicles on
the inferior conjunctiva
Should be suspected if there is purulent (yellow or green)
discharge, injected (red sclera), and numerous inflamed follicles.
Bacterial Conjunctivitis
Occasional blurring is common; should not be painful, constant
blurring, or photophobia.
