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Exam (elaborations)

CERTIFIED OPHTHALMIC ASSISTANT (COA) EXAM (ANSWERED)

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CERTIFIED OPHTHALMIC ASSISTANT (COA) EXAM (ANSWERED)

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COA
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COA
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COA

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Uploaded on
January 8, 2026
Number of pages
148
Written in
2025/2026
Type
Exam (elaborations)
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CERTIFIED OPHTHALMIC ASSISTANT (COA) EXAM
(ANSWERED)
M
ED
ST
U
D
Y


er

,Certified Ophthalmic Assistant (COA)


How are systemic medications administered? - Precise Answer
✔✔Orally, injection (subcutaneously or intramuscularly) or
intravenously
M

How should drops be properly instilled into a patient's eye? - Precise
Answer ✔✔Into the lower cul de sac (lower fornix)
ED

What does the term idiosyncrasy refer to with ophthalmic drugs? -
Precise Answer ✔✔A bizarre, peculiar reaction to a drug that is not
ST

commonly seen, such as tremors, excitability or even collapse
U
What is the name of the instrument used to neutralize lenses? - Precise
Answer ✔✔Lensometer (Lensmeter)
D
Y
When recording a prism in a spectacle prescription, what does the
abbreviation BO stand for? - Precise Answer ✔✔Base out


What is determined by focusing the thin lines in a manual lensometer? -
Precise Answer ✔✔The sphere of the spectacle prescription

,What is the first step in performing lensometry? - Precise Answer
✔✔Focus the eyepiece


When PRK is being performed, time remaining in the procedure should
be announced in increments of ______ - Precise Answer ✔✔10 seconds


Name the organism that is most destructive to the eye. - Precise Answer
✔✔Pseudomonas Aeruginosa
M
ED
What procedure using an Argon Laser is thought to destroy areas of
ischemic retina? - Precise Answer ✔✔Panretinal photocoagulation or
panretinal laser
ST

What type of intraocular injection is made at the Pars plana site with a
needle and syringe of medication? - Precise Answer ✔✔Intravitreal
injection
U
D
What are the parallel movements of the eyes from one gaze position to
another - Precise Answer ✔✔Versions
Y

What is the movement of one eye called - Precise Answer ✔✔Duction


Versions and ductions are tested by using ________ to test the six pairs
of _______ muscles. - Precise Answer ✔✔Six Cardinal positions, yoke

, The movement of the eye outward toward the temple is called _____ -
Precise Answer ✔✔Abduction


What is the technique used to measure the radius of curvature of the
anterior corneal surface? - Precise Answer ✔✔A-Scan Keratometry
Length Measurements


Keratometry is performed with a device called a ______ - Precise
M
Answer ✔✔Keratometer or ophthalmometer
ED

Give three examples in which a Keratometry measurement would be
useful. - Precise Answer ✔✔Contact lens fitting, refractive surgery,
intraocular lens calculations, keratoconus
ST

Keratometry is measured in _____ - Precise Answer ✔✔Diopters
U

Measuring intraocular pressure is also called _____ - Precise Answer
D
✔✔Tonometry
Y

The higher the intraocular pressure of an eye, the ____ the eye - Precise
Answer ✔✔Harder


Applanation tonometry displaces less than ____ of aqueous. - Precise
Answer ✔✔0.5 microliters

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