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COA Practice Test 2026 – Complete Ophthalmic Medical Assistant Exam Q&A with Verified Answers | JCAHPO Certification Prep

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Prepare for the Certified Ophthalmic Assistant (COA) exam with this comprehensive 2026 practice test featuring hundreds of questions and correct, verified answers. Covering all essential topics for ophthalmic medical assistants—including anatomy and physiology of the eye, optics and lensometry, diagnostic testing (visual acuity, tonometry, perimetry, OCT, fluorescein angiography), pharmacology, surgical assisting, sterile technique, refractive surgery (LASIK, PRK), contact lenses, low vision, medical ethics, HIPAA compliance, and JCAHPO certification standards—this resource is designed to mirror the actual exam format. Each answer is provided with clarity to reinforce key concepts and clinical reasoning. Ideal for COA, COT, and COMT candidates, ophthalmic technicians, and allied health professionals seeking to advance their careers in ophthalmology.

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COA Newest Practice Test with 850 Correctly
Answered Questions / Certified Ophthalmic
Answer
asks a literate 8-year-old patient to read the visual acuity chart, the child
begins reciting the alphabet. What is the most effective action the assistant
can take to get the test results needed? - ANSWER//Ask the child to start at
the beginning of the chart and say each letter separately. Which suture
material is not broken down by the body but must be removed from the suture
site? - ANSWER//polypropylene Which statement applies to the discussion
involved in obtaining informed consent? - ANSWER//It covers the benefits as
well as the risks of the procedure. Which task is the ophthalmic medical
assistant's responsibility when caring for a patient who is undergoing minor
surgery? - ANSWER//prepping the patient for the procedure A patient asks
you a specific question about the outcome of surgery just before the operation.
Which is the best action to take? - ANSWER//Suggest that the patient ask the
doctor, and bring up the question as soon as the doctor arrives Which suture
size is most likely to be used for cataract surgery? - ANSWER//10-0 Which
action would be considered a violation of the sterile operating field? -
ANSWER//The assistant rubs her nose through her surgical mask. What is
the rhomboid-shaped needle point used in procedures involving the cornea or
sclera, where the plane of penetration must be precise? - ANSWER//spatula
point What does the surgeon use to maintain hemostasis during a surgical
procedure? - ANSWER//clamps Significant haze occurs in LASIK in which
situation? - ANSWER//The flap is too thin. Hyperopic eyes are benefited by
refractive procedures that do which of the following? - ANSWER//steepen the
cornea Which option is not a disadvantage related to a LASIK procedure? -
ANSWER//increased corneal astigmatism Which condition is not a
contraindication to refractive surgery? - ANSWER//glaucoma Which statement
is characteristic of photorefractive keratectomy? - ANSWER//The corneal
epithelium is mechanically removed and laser applied to Bowman layer and
anterior stroma. In the absence of accommodation, where does the myopic
eye focus images? - ANSWER//in front of the retina Which situation is a
contraindication for use of intracorneal ring segments? - ANSWER//low levels
of hyperopia Which refractive technique is reversible? -
ANSWER//intracorneal ring segments What is a limitation of cycloplegia in the
preoperative refractive surgery evaluation? - ANSWER//production of
spherical aberrations What is a term for wavefront error measurement? -
ANSWER//aberrometry What is the standard system for reporting diagnoses?
- ANSWER//ICD The ophthalmic medical assistant should not code which
option? - ANSWER//a "suspected" diagnosis Which key component is not
used to determine the appropriate level of E & M code? - ANSWER//diagnosis
What does appropriate code linking require? - ANSWER//medical necessity
OSHA prescribes how practices protect which area? - ANSWER//employee
health and safety Which factor influencing a patient's condition is not listed in
the ICD-10-CM classification system? - ANSWER//medications Which
behavior is inappropriate for a technician to do? - ANSWER//discussing
clinical findings with the patient Which option is not a measure of clinical

, productivity? - ANSWER//number of follow-up appointments Which codes are
used to describe congenital problems? - ANSWER//Q codes Documentation
standards for E & M services are recognized in what way? - ANSWER//on a
national carrier basis The ophthalmic medical assistant is at home. A neighbor
comes by with a swollen, painful bump on his eyelid and asks what he should
do. What is the best course of action for the assistant to take? -
ANSWER//Explain that an ophthalmic medical assistant cannot diagnose
conditions or recommend treatments but can help him get an appointment
with the doctor. A daughter who usually accompanies her mother to all exams
is unable to attend a follow-up glaucoma visit calls and asks the ophthalmic
medical assistant for an update on her mother's condition. What should the
ophthalmic medical assistant do? - ANSWER//Share information only if a
current, signed permission to communicate is available in the medical record.
What should the ophthalmic medial assistant do first after escorting a new
patient to the examination room? - ANSWER//Introduce herself or himself and
explain what she or he will be doing before the patient sees the doctor. The
ophthalmic medical assistant overhears a coworker giving medical advice to a
friend over the phone during a break at the office. What is the best action for
the assistant to take? - ANSWER//Inform the doctor or office manager. Which
option relates to obtaining informed consent for a surgical procedure? -
ANSWER//can only be obtained by the surgeon, although others may assist
with the process Two patients who have similar eye problems have been
discussing their eye conditions in the waiting room. During her visit, one of the
patients asks the ophthalmic medical assistant for her new friend's phone
number so they can continue their discussions. How should the assistant
respond? - ANSWER//Explain that personal information cannot be shared
without specific written permission. The ophthalmic medical assistant has just
completed a visual field examination on a glaucoma suspect patient and
believes the test result is normal. The patient asks whether he has glaucoma.
How should the assistant respond? - ANSWER//Tell him that the doctor must
interpret the results and will be with him soon to review and explain everything.
After the ophthalmic medical assistant performs the initial interview and
testing for a new patient, the patient says "Thank you, doctor." How should
the assistant respond? - ANSWER//Correct the mistake. An ophthalmic
medical assistant accidentally administers too many diagnostic eye drops to a
patient's eye. Which action should the assistant take first? - ANSWER//Tell
the ophthalmologist, who will then decide how to handle the situation. An
ophthalmologist's office may disclose information about a patient's condition
only to which individual seeking the information? - ANSWER//the person to
whom the patient has given written permission What does the Health
Insurance Portability and Accountability Act of 1996, often referred to as
HIPAA regulations, specify? - ANSWER//the requirements for sharing
protected health information with health care professionals and others The
ophthalmic medical assistant is about to perform an optical coherence
tomography (OCT) exam, and the patient asks why the test is being done.
What is the assistant's best response? - ANSWER//Explain the reason the
test was ordered and what to expect during the test. While waiting for the
ophthalmologist, an anxious patient asks the ophthalmic medical assistant for
the results of a recent test. What should the assistant do? - ANSWER//Explain
that the ophthalmologist will discuss these results with the patient shortly.

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