CPO PRACTICE TEST COMPREHENSIVE
ASSESSMENT 2026 COMPLETE RESPONSES
VERIFIED
◉ The prescription of plano-3.00x090 is an example of a Answer:
Planocylindrical Lens
◉ Which of the following instruments is used to measure the
curvature of the cornea? Answer: Ophthalmometer and Keratometer
◉ When performing lensometry, if both crossed lines do not come
into focus at the same time, that is an indication that Answer: There
is a cylinder component
◉ The smallest unit of lens measure is generally Answer: 0.25
Diopter
◉ On orders that include prism, both the amount of prism and the
prism __________ direction should be specified. Answer: base
◉ The primary meridian refers to which one of the following?
Answer: The horizontal measurement of the cornea
,◉ What should be done first when determining Spherical power of
the lens in the Lensometer? Answer: Start with plus power and
rotate power wheel until spherical line is focused
◉ A prescription containing a sphere, cylinder and axis are
prescribed for Answer: Astigmatism
◉ Pursuits are eye movements of what kind? Answer: As they follow
a moving target
◉ Before Goldmann Applanation Tonometry, a patient should be
given one drop of Answer: Proparacaine
◉ According to HIPAA, how must a patient request their medical
records? Answer: signing a records release
◉ The interpupillary distance is measured in which one of the
following units of measure? Answer: Millimeters
◉ A patient calls and says they are running about thirty minutes late
for their appointment. First, you should Answer: Confirm with the
office manager or optometrist if the patient can be seen
, ◉ The add power of a lens is Answer: The last component of a lens
prescription
◉ Metamorphopsia (often found in low vision patients) is measured
with which one of the following? Answer: The Amsler Grid
◉ Standard ophthalmic plastic lenses are made from a material
called __________. Answer: CR-39
◉ Polycarbonate lenses do not need ___________ coating, since their
surfaces already have this property. Answer: ultraviolet
◉ A right tropia is evident when _________. Answer: the right eye
moves when the left eye is covered
◉ A ____________ lens is used to correct a combination of myopia or
hyperopia with astigmatism. Answer: spherocylindrical
◉ The bone behind the ear that the temple should be adjusted
around is the ______________. Answer: mastoid bone
◉ The practice of keeping medical records out of view of patients is
compliant with: Answer: HIPAA
ASSESSMENT 2026 COMPLETE RESPONSES
VERIFIED
◉ The prescription of plano-3.00x090 is an example of a Answer:
Planocylindrical Lens
◉ Which of the following instruments is used to measure the
curvature of the cornea? Answer: Ophthalmometer and Keratometer
◉ When performing lensometry, if both crossed lines do not come
into focus at the same time, that is an indication that Answer: There
is a cylinder component
◉ The smallest unit of lens measure is generally Answer: 0.25
Diopter
◉ On orders that include prism, both the amount of prism and the
prism __________ direction should be specified. Answer: base
◉ The primary meridian refers to which one of the following?
Answer: The horizontal measurement of the cornea
,◉ What should be done first when determining Spherical power of
the lens in the Lensometer? Answer: Start with plus power and
rotate power wheel until spherical line is focused
◉ A prescription containing a sphere, cylinder and axis are
prescribed for Answer: Astigmatism
◉ Pursuits are eye movements of what kind? Answer: As they follow
a moving target
◉ Before Goldmann Applanation Tonometry, a patient should be
given one drop of Answer: Proparacaine
◉ According to HIPAA, how must a patient request their medical
records? Answer: signing a records release
◉ The interpupillary distance is measured in which one of the
following units of measure? Answer: Millimeters
◉ A patient calls and says they are running about thirty minutes late
for their appointment. First, you should Answer: Confirm with the
office manager or optometrist if the patient can be seen
, ◉ The add power of a lens is Answer: The last component of a lens
prescription
◉ Metamorphopsia (often found in low vision patients) is measured
with which one of the following? Answer: The Amsler Grid
◉ Standard ophthalmic plastic lenses are made from a material
called __________. Answer: CR-39
◉ Polycarbonate lenses do not need ___________ coating, since their
surfaces already have this property. Answer: ultraviolet
◉ A right tropia is evident when _________. Answer: the right eye
moves when the left eye is covered
◉ A ____________ lens is used to correct a combination of myopia or
hyperopia with astigmatism. Answer: spherocylindrical
◉ The bone behind the ear that the temple should be adjusted
around is the ______________. Answer: mastoid bone
◉ The practice of keeping medical records out of view of patients is
compliant with: Answer: HIPAA
