Exam (elaborations)
COA Exam: Questions With Correct Solutions (A+)
- Course
- Institution
COA Exam: Questions With Correct Solutions (A+)
[Show more]
Seller
Follow
Studycafe
Reviews received
Content preview
COA Exam: Questions With Correct Solutions (A+)Name the nine components of the ophthalmic history. Right Ans - Chief
complaint, present illness, past ocular history, ocular medications, general
medical and surgical history, systemic medications, allergies, social history
and family history.
Why is it important to specifically ask a patient about the medications they are
taking? Right Ans - Because certain medications may affect the eyes.
What is the proper response to a patient's request from the ophthalmic
technician for medical advice or a diagnosis? Right Ans - Refer the patient
to the ophthalmologist.
What is the term used for the reason for the patient's visit? Right Ans -
Chief complaint
What elements are important in social history taking? Right Ans - Smoking,
alcohol, and drug use.
Prior use of topical ocular pharmaceutical agents is part of a patient's
___________. Right Ans - Past ocular history
Pertinent family history of a patient should include which relatives? Right
Ans - Parents, grandparents, and genetic siblings
A patient describing an experience of getting hives after taking sulfa drugs is
providing information about ______. Right Ans - An allergic reaction
What is the term for the spasmodic, rhythmic dilating, and contracting
pupillary movements during pupil function testing? Right Ans - Hippus
What is the name of the test used for detecting a relative afferent pupillary
defect? Right Ans - Swinging flashlight test
Which muscle of the iris constricts in bright light? Right Ans - Sphincter
What is pupil dilation termed? Right Ans - Mydriasis
,What is the term used when there is a difference in pupil size Right Ans -
Anisocoria
What is pupillometry? Right Ans - The measurement of pupillary
diameters.
What is the name of the reflexive reaction that occurs when a light is directed
into one pupil and the pupil of the opposite eye simultaneously reacts?
Right Ans - Consensual pupillary reaction
Calibration of the applanation tonometer should be checked approximately
every _____ months. Right Ans - Two
When cleaning the goniolens, what is used to rinse off the methycellulose?
Right Ans - Warm running water
When replacing a light bulb _______ can diminish its effectiveness and life.
Right Ans - Oil from fingers
Diagnostic lenses that contact the eye can be sterilized using? Right Ans -
Ethylene Oxide gas
How should the removable glass slides inside the American Optical acuity
projector be cleaned? Right Ans - Wipe with clean, soft lint-free towel or
photographic lens paper.
If dust accumulates on the mirror of the slit lamp, the technician may clean it
by using what cleaning methods? Right Ans - A lint-free cloth, a lens brush,
or blast of air.
Who should repair and maintain equipment such as a laser? Right Ans - A
qualified service technician.
Which accessories are used to check the calibration of an
ophthalmometer/keratometer? Right Ans - Three test balls made of steel,
also called "Lensco Meter"
What should be used to clean the accessible lenses of a phoropter? Right
Ans - Photographic lens cleaner and lens tissue
, What size letters (optotypes) are typically used to calibrate visual acuity
projectors? Right Ans - 20/200
What is the name of the instrument used to neutralize lenses? Right Ans -
Lensometer
When recording prism in spectacle Rx, what does the abbreviation BO stand
for? Right Ans - Base out
What is determined by focusing the thin lines in a manual lensometer?
Right Ans - The sphere of the spectacle Rx is determined by the thin lines.
What is the first step in performing lensometry? Right Ans - Focus the
eyepiece.
If you cannot center the thick and thin lines in the lensometer, the lens has
________. Right Ans - Ground-in prism.
Each black ring seen in the lensometer eyepiece reticle measures how much
prism? Right Ans - 1 diopter for each ring.
When performing lensometry, what is indicated if both thin and wide lines are
in focus at the same time? Right Ans - The lens is spherical.
What is the technique used to measure the radius of curvature of the anterior
corneal surface? Right Ans - A-Scan Keratometry Length Measurements
Keratometry is performed with a device called a ___________. Right Ans -
Keratometer or ophthalmometer
Give three examples in which a keratometry measurement would be useful.
Right Ans - Contact lens fitting, refractive surgery, intra ocular lens
calculations, keratoconos
Keratometry is measured in ______. Right Ans - Diopters
An unfocused eyepiece can lead to an error of _________. Right Ans - 1
diopter in the K reading
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Studycafe. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for CA$24.66. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
79223 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now