CERTIFIED OPHTHALMIC ASSISTANT Exam
Questions with 100% Verified Answers
Latest Versions Top Rated A+
Which history taking category would not typically be
pertinent when interviewing a patient with a chief complaint
of headaches?
A. Duration
B. Cause
C. Date
D. ethnicity
D. ethnicity
Binocular diplopia is always caused by...
a weak or paralyzed extraocular muscle
An improperly measured inter pupillary distance (PD) may
result in...
induced prism in spectacle lenses
consensual light reflex in the right eye results in...
left pupil constriction
The state of pupillary contraction is known as
miosis
The amount of light information transmitted to the brain from
one eye differs from that of the other eye, the patient has a...
afferent pupillary defect or Marcus gun pupil
When pupils are of unequal size it is called
anisocoria
Which test compares the direct and cons usual responses to
the pulp?
swinging flashlight test
A disadvantage of chemical-based contact lens care systems
is
irritation
Soft contact lenses are susceptible to deposits of
,proteins
An important difference between side and rigid lenses is that
soft contact lenses are
usually more comfortable
The permeability of a contact lens is denoted by which
value?
DK
The instrument that measure the curvature of the central part
of the cornea is the
keratometer
The instrument that measures the power of the spectacle
lens is the
lensmeter
When replacing the projector's lamp, it is important to
A. leave the lamp housing on the projector
B. wait a few minutes after it is turned off
C. Disassemble the lamp reflector
D. Clean it with alcohol
B wait a few minutes after it is turned off
The exposed lens surface of an eyepiece should be dusted
periodically with a...
camel hair brush
What two items are used to clean the retinoscopy lens,
polarizing lens, red lens, and maddoc rod lens?
cotton tip swab and glass cleaner
Routine maintenance of a phoropter should include...
1. protecting the phoropter with a dust cover when not in use
2. cleaning the back lenses of photopter with glass cleaner
3. cleaning off dust on engrossed lenses with an ear syringe
calibration of the application tonometer is checked by
using a measured weight attached to the tonometer balancing
arm at 0, 2, and 6
a Lens with a focal length of 2 meters has a power of
0.5D
What part of the spectacle frame connets the two lenses?
, bridge
The measurement used to determine the distance between
the optical centers of spectacle lenses is the
pupillary distance
The optical centers of spectacles lenses must be properly
aligned in order to avoid what effect?
prismatic
What is the reading portion of a bifocal prescription called?
addition
Which process is useful for measuring corneal astigmatism?
Keratometry
The results of a keratometry can be expressed in
diopters
Ub keratometry, if the power of the vertical meridian is
greater than the power of the horizontal meridian, the patient
has...
A. With the rule astigmatism
B. Against the rule astigmatism
with-the-rule astigmatism
Corneal curvature measurement is vital to ensure that
contact lens
A. touches the corneal surface
B> touches the conjunctival surface
C. rests on the corena
D. rests on the tear film
C. rests on the cornea
The dioptric power of the cornea is determined by
keratometer readings
What is the MAIN purpose of wearing impact resistant rather
than ordinary glasses in an industrial setting?
Prevent ocular injury
The proper technique to assist the visually impaired patient
is to
place their hand on your arm at the elbow.
The function of tear film is to
Questions with 100% Verified Answers
Latest Versions Top Rated A+
Which history taking category would not typically be
pertinent when interviewing a patient with a chief complaint
of headaches?
A. Duration
B. Cause
C. Date
D. ethnicity
D. ethnicity
Binocular diplopia is always caused by...
a weak or paralyzed extraocular muscle
An improperly measured inter pupillary distance (PD) may
result in...
induced prism in spectacle lenses
consensual light reflex in the right eye results in...
left pupil constriction
The state of pupillary contraction is known as
miosis
The amount of light information transmitted to the brain from
one eye differs from that of the other eye, the patient has a...
afferent pupillary defect or Marcus gun pupil
When pupils are of unequal size it is called
anisocoria
Which test compares the direct and cons usual responses to
the pulp?
swinging flashlight test
A disadvantage of chemical-based contact lens care systems
is
irritation
Soft contact lenses are susceptible to deposits of
,proteins
An important difference between side and rigid lenses is that
soft contact lenses are
usually more comfortable
The permeability of a contact lens is denoted by which
value?
DK
The instrument that measure the curvature of the central part
of the cornea is the
keratometer
The instrument that measures the power of the spectacle
lens is the
lensmeter
When replacing the projector's lamp, it is important to
A. leave the lamp housing on the projector
B. wait a few minutes after it is turned off
C. Disassemble the lamp reflector
D. Clean it with alcohol
B wait a few minutes after it is turned off
The exposed lens surface of an eyepiece should be dusted
periodically with a...
camel hair brush
What two items are used to clean the retinoscopy lens,
polarizing lens, red lens, and maddoc rod lens?
cotton tip swab and glass cleaner
Routine maintenance of a phoropter should include...
1. protecting the phoropter with a dust cover when not in use
2. cleaning the back lenses of photopter with glass cleaner
3. cleaning off dust on engrossed lenses with an ear syringe
calibration of the application tonometer is checked by
using a measured weight attached to the tonometer balancing
arm at 0, 2, and 6
a Lens with a focal length of 2 meters has a power of
0.5D
What part of the spectacle frame connets the two lenses?
, bridge
The measurement used to determine the distance between
the optical centers of spectacle lenses is the
pupillary distance
The optical centers of spectacles lenses must be properly
aligned in order to avoid what effect?
prismatic
What is the reading portion of a bifocal prescription called?
addition
Which process is useful for measuring corneal astigmatism?
Keratometry
The results of a keratometry can be expressed in
diopters
Ub keratometry, if the power of the vertical meridian is
greater than the power of the horizontal meridian, the patient
has...
A. With the rule astigmatism
B. Against the rule astigmatism
with-the-rule astigmatism
Corneal curvature measurement is vital to ensure that
contact lens
A. touches the corneal surface
B> touches the conjunctival surface
C. rests on the corena
D. rests on the tear film
C. rests on the cornea
The dioptric power of the cornea is determined by
keratometer readings
What is the MAIN purpose of wearing impact resistant rather
than ordinary glasses in an industrial setting?
Prevent ocular injury
The proper technique to assist the visually impaired patient
is to
place their hand on your arm at the elbow.
The function of tear film is to
