Ophthalmic technician screening questions: COA, COT and COMT certification, workups and clinic flow

Ophthalmic technician screening questions should start with the certification level, because COA, COT and COMT mean different things in a clinic: who can be left alone with a complex workup, who runs specialized testing, and who trains everyone else. Then test the workup itself: history, visual acuity, pupils, pressure, refraction where the practice allows it, and the testing that feeds the physician's decisions. Throughput matters in ophthalmology; so does knowing when to stop and get the doctor.

This page covers ophthalmic assistants, technicians and technologists in ophthalmology practices and eye hospitals. Dispensing roles are covered in optician screening questions, and documentation-only roles in medical scribe screening questions. Candidates coming from general clinics overlap with medical assistant screening questions.

Which ophthalmic job is it?

IJCAHPO certifications

Certifications are valid for 36 months and are kept current through CE credits or retesting, according to IJCAHPO's recertification page. IJCAHPO also offers specialty certifications, including ophthalmic scribe, surgical assisting, diagnostic ophthalmic sonography and ultrasound biometry; ask about them when the role needs those skills.

We did not find a general state license for ophthalmic technicians. They work under the ophthalmologist's supervision, and the practice decides which certification it requires. State law can still matter at the edges: Oregon's medical imaging law, for example, exempts people who use ultrasound solely for ophthalmic sonography (ORS 688.435). This is not legal advice; check the job's state.

Questions to settle with the client first

• Which certification level, and by when? Many practices hire uncertified assistants and expect COA within a set period; others need a COT on day one.
• Which subspecialties and testing? A retina clinic's OCT and injection days are a different job from a glaucoma clinic's visual fields.
• Do technicians refract or scribe? Practices differ, and candidates who refract will ask.
• What is the patient volume per physician, and how many technicians support each one? Get the numbers from the client so you can compare like with like.
• Which EHR and devices? Matching experience shortens training.

Knockout questions

Workup questions with strong answers and red flags

1. "Walk me through a new glaucoma patient's workup."
   • Strong answer: chief complaint and history including family history and current drops, visual acuity, pupils checked before dilation, intraocular pressure by the practice's method, then testing ordered by protocol (visual fields, OCT) before or after dilation as the practice prefers.
   • Red flags: dilates before checking pupils, or skips the medication list.
2. "What do you check before putting in dilating drops?"
   • Strong answer: the physician's order, allergies, and the practice's screening for narrow angles or other reasons to hold dilation; asks the doctor when unsure, and tells the patient about driving and light sensitivity.
   • Red flags: dilates everyone automatically.
3. "A patient's acuity has dropped sharply since the last visit, or they report sudden flashes and a curtain."
   • Strong answer: recognizes a possible urgent problem, tells the physician right away rather than putting the patient back in the queue, and documents.
   • Red flags: completes the routine workup and waits.
4. "How do you get a reliable visual field?"
   • Strong answer: correct lens and patient setup, clear instructions, monitors fixation and reliability indices, retests or notes it when reliability is poor.
   • Red flags: starts the machine and leaves the room.
5. "Which imaging and biometry devices have you used?"
   • Strong answer: names the devices and what they did with them, for example OCT for retina and glaucoma follow-ups and optical biometry for cataract planning, and how they checked measurements against the other eye.
   • Red flags: generic "all the machines".
6. "Do you refract, and how do you know when to refine?"
   • Strong answer: describes their method and the practice's rules on who refracts, and checks the result against acuity and the previous prescription.
   • Red flags: copies the autorefractor reading as the final result.

How ophthalmic experience gets overstated

• Optometry office experience presented as ophthalmology. Both are valuable; the testing and surgical side differ. Ask which physician type they worked for.
• "Working toward COA" with no course started. Ask which course and how many hours are logged.
• Imaging experience that was pressing the button after someone else set up. Ask how they handled a poor-quality scan.
• Scribing counted as technician work. Ask which parts of the workup they performed themselves.

Knockout checklist and scoring

What to put in the submittal

Give the IJCAHPO level, ID and expiration date (or pathway and test date), subspecialties, devices used, whether they refract or scribe, clinic volumes as the candidate's own estimates, and schedule. Practice administrators compare technician candidates on certification level and subspecialty first.

Lawful phrasing

Describe the work (close visual tasks, moving between rooms, assisting patients with limited mobility) and ask whether the candidate can do it with or without accommodation; do not ask about their own eyesight or health before an offer. See pre-employment medical exams and the ADA. If the practice needs a bilingual technician, ask about the language skill itself.