COT® Certification: How to Become a Certified Ophthalmic Technician

An independent study tool for the IJCAHPO (JCAHPO) Certified Ophthalmic Technician exam. Not affiliated with or endorsed by IJCAHPO.

To earn Certified Ophthalmic Technician (COT) certification, you qualify through one of four eligibility pathways, apply to IJCAHPO, and pass two tests: a multiple-choice exam and the COT Skill Evaluation, a computer simulation of seven hands-on skills. IJCAHPO, called JCAHPO in older documents, alone decides who is eligible.

The COT is the middle of IJCAHPO's three core certifications, between the entry-level Certified Ophthalmic Assistant (COA®) and the advanced Certified Ophthalmic Medical Technologist (COMT®). You can reach it from a technician training program, as a certified orthoptist, or after working as a COA. Fees and forms change, so we link to IJCAHPO's own pages for those.

COT certification requirements

IJCAHPO lists four eligibility pathways, COT-T1 to COT-T4 (T1 to T4 for short). You need to meet just one. CE below means continuing education credits approved by IJCAHPO.

Pathway	Who it's for	What you need
COT-T1	Technician program graduates	Graduation from a training program accredited by the International Council of Accreditation (ICA) at the Technician level. No work experience and no COA needed.
COT-T2	Current COAs	A current COA; 2,000 hours worked as a COA under an ophthalmologist's supervision in the 24 months before you apply; and 12 IJCAHPO CE credits earned in the 12 months before you apply
COT-T3	Certified orthoptists	A current orthoptist certification (Certified Orthoptist, CO, or OC(C) in Canada); 2,000 hours worked as an orthoptist in the 24 months before you apply; and 12 IJCAHPO CE credits earned in the 12 months before you apply
COT-T4	COAs on the fast track	A current COA, plus 6,000 hours worked under an ophthalmologist's supervision before you were certified, confirmed by the ophthalmologist in a letter on official letterhead; and 12 IJCAHPO CE credits earned in the 12 months before you apply

A few more rules:

Keep your COA or orthoptist certification current. On T2 and T4 your COA, and on T3 your orthoptist certification, must stay current while you work toward the COT.
Graduated more than a year ago? If you finished a T1 program more than 12 months before applying, IJCAHPO also asks for 12 IJCAHPO CE credits for each year since you graduated. Its COT page says when those credits must have been earned.
Still in school? You can apply up to two months before graduating from a formal training program. IJCAHPO holds your results until it receives official notice of your graduation.
Don't fit a pathway? If you believe your education, training or experience is equivalent, you can ask IJCAHPO's Certification Department for special consideration. Requests can take several weeks.
No minimum age. IJCAHPO sets no minimum age for its certifications.

How to get COT certified, step by step

Confirm your pathway and gather what it asks for: your CE credits and, for T4, the ophthalmologist's letter on letterhead.
If you apply by mail, line up a sponsoring ophthalmologist. On IJCAHPO's mail-in application, an ophthalmologist signs an endorsement by hand (stamped and digital signatures aren't accepted), confirming either that you work under their direct supervision or that they sponsor you.
Apply online or by mail, with the application fee. Each pathway on IJCAHPO's COT page has its own application link.
Wait for approval. IJCAHPO processes applications within about four weeks, then emails a confirmation notice with scheduling instructions.
Take the multiple-choice exam at a Pearson VUE test center (Pearson VUE is the testing company that delivers IJCAHPO's exams), booked using the instructions in your confirmation notice. You have 90 days from that notice to schedule and take it. Before the 90 days end, you can ask IJCAHPO in writing for a one-time 30-day extension, for a fee. Let the window run out and you lose your application fee and must reapply.
Take the Skill Evaluation. Once you pass the multiple-choice exam, IJCAHPO sends you the form to register for it. IJCAHPO's FAQ says it is currently given online, with a live proctor (exam supervisor) watching remotely; follow the instructions IJCAHPO sends you.
Finish within 24 months. You must pass both parts within 24 months of IJCAHPO approving your application, or apply again. Didn't pass a part? See retesting below.

The COT exam at a glance

The COT has two parts, and you must pass both.

The multiple-choice exam

In May 2025 IJCAHPO announced that the COT exam would change, adding videos and problem-based scenarios and cutting the number of questions. The latest copy of its COT page we could find, from late 2025, still listed 200 questions in 3 hours, so check the COT page for the format in effect when you test. The format it listed:

Questions: 200, all multiple choice, in English
Time: 180 minutes (3 hours)
Where: a Pearson VUE test center. Pearson's at-home option, OnVUE, is offered for only two IJCAHPO exams, the COA and CRT (Certified Retina Technician), not the COT.
Results: an unofficial pass or fail on screen when you finish, without a score; official results by mail within about four weeks

IJCAHPO exams include some unscored trial questions that look like the rest. IJCAHPO's COT page doesn't say whether its 200 includes them, so treat every question as if it counts.

The COT Skill Evaluation

A computer simulation, not a live patient. It tests seven skills:

Lensometry (reading the prescription in a pair of glasses), with a manual lensometer
Visual fields (mapping side vision)
Ocular motility (how the eyes move and line up)
Keratometry (measuring the curve of the cornea)
Retinoscopy (estimating the prescription with a light)
Refinement (fine-tuning the prescription with the patient's answers)
Tonometry (measuring eye pressure)

You get two hours (120 minutes) for all seven on your first attempt. Each skill is scored on its own, on your technique (the steps of the procedure) and the accuracy of your results; visual fields is scored on technique only. You must pass all seven to earn the COT. There is no report when you finish; IJCAHPO sends official results and feedback on each skill area afterward.

Your confirmation includes a link to an online tutorial and a checklist that show how the simulation works. Go through them before test day. IJCAHPO also sells an optional practice Skill Evaluation, which you choose on the registration form. It offers no practice version of the COT multiple-choice exam.

What's on the COT exam: IJCAHPO's 19 published content areas

IJCAHPO's published COT table, which appears to date from its 2017–2018 content update, splits the multiple-choice exam into 19 content areas, each worth a set share of the questions. They aren't equal: the 8 areas weighted 6% or more make up 54% of the questions, while 4 are 3% each. Since then the COA has moved to a new 22-area outline (August 1, 2025) and IJCAHPO has announced an updated COT exam, so check IJCAHPO's COT page for the outline in effect when you test.

Here they are, heaviest first. Each links to its EyeTech Prep study guide: the opening of every guide is free to read, and the full guides come with the COT and Complete plans. Names may differ slightly from IJCAHPO's wording; check IJCAHPO's COT content areas (PDF) for its current labels.

Content area (links to its study guide)	Share of exam
Supplemental Skills	9%
Ophthalmic Patient Services and Education	7%
Ophthalmic Imaging	7%
Refractometry	7%
History Taking	6%
Assisting in Surgical Procedures	6%
Visual Assessment	6%
Visual Fields	6%
Pupillary Assessment	5%
Lensometry	5%
Keratometry	5%
Pharmacology	5%
Ocular Motility	5%
Tonometry	5%
Equipment Maintenance and Repair	4%
Contact Lenses	3%
Medical Ethics, Legal and Regulatory Issues	3%
Microbiology	3%
Spectacle Skills	3%

How to prepare for the COT exam

Spend your study time where the weight is, and practice the seven Skill Evaluation procedures at work, since the simulation scores both your technique and your results:

Read the COT study guides, heaviest areas first.
Test yourself with 28 free COT practice questions with answers, from every content area.
Refresh the basics with the free COA study guides and free COA practice questions.
When you want the full question bank, the COT plan is $19.99 a month until you cancel and includes everything in the COA plan. It adds the full COT question bank across all 19 areas, mock tests and a timed 200-question exam simulation. If you haven't used a free trial, your first 7 days are free, and you aren't charged if you cancel before the trial ends.
EyeTech Prep's practice is multiple choice only and doesn't simulate the Skill Evaluation. For that, use IJCAHPO's tutorial and, if you want one, its practice Skill Evaluation.

Renewing your COT certification (recertification)

COT certification lasts three years (36 months). To renew with continuing education, earn 27 CE credits within those three years. IJCAHPO decides which credits count (continuing medical education credits for physicians, called CME, no longer do), and its recertification page has the current rules, deadlines and fees. Or renew by passing the COT multiple-choice exam again, without the Skill Evaluation, as long as your certification hasn't been revoked. CPR isn't required, but a CPR card from a course taken during those three years can count as one CE credit.

IJCAHPO emails a reminder about six months before your renewal date. Your recertification application needs your sponsoring ophthalmologist's signature; they don't have to be your current employer.

Miss your renewal date and you have up to six months to recertify, with a late fee; your certification is inactive in the meantime. After six months IJCAHPO revokes it. IJCAHPO offers a one-time reinstatement after revocation, which may mean retesting; its Certification Department has the details.

COT certification FAQ

How long does it take to become a COT?

It depends on your route. Students in an ICA-accredited technician program can apply up to two months before graduating, and recent graduates right away. COAs on T2 need 2,000 hours as a COA in the 24 months before applying, about a year of full-time work, and orthoptists on T3 need 2,000 hours as orthoptists. COAs on the T4 fast track need 6,000 hours worked before they were certified. After you apply, allow about four weeks for approval; you then have up to 24 months to pass both parts.

Can I take the COT exam without being a COA?

Yes, through COT-T1 (an ICA-accredited technician program) or COT-T3 (orthoptist certification plus 2,000 hours worked as an orthoptist). The other two routes, T2 and T4, both require a current COA.

What is the difference between COA and COT certification?

The COA is IJCAHPO's entry-level core certification and the COT the intermediate one. The COT asks for more: a technician-level program, orthoptist certification or supervised work as a COA, plus a Skill Evaluation on top of the multiple-choice exam. See how to get COA certified for the first rung.

Can you take the COT exam online?

Not the multiple-choice exam: you take it at a Pearson VUE test center, because OnVUE covers only IJCAHPO's COA and CRT exams. IJCAHPO's FAQ says the Skill Evaluation is currently given online, with a live proctor watching remotely.

How much does the COT exam cost?

This page doesn't quote fees because they change. For current amounts, start from IJCAHPO's COT page and certification FAQ. Retests, extensions and the practice Skill Evaluation cost extra. Also:

U.S. and Canadian military personnel and veterans can get up to 50% off initial exam application fees; contact IJCAHPO for pricing (military personnel page).
If you can't take the exam, you can ask in writing for a refund before your 90-day window ends. IJCAHPO keeps a processing fee, and it doesn't refund a denied application.

What score do you need to pass the COT exam?

IJCAHPO doesn't publish one. A committee of eye-care professionals and a testing expert (a psychometrician) sets each passing score by judging how a just-qualified technician would do on the questions. It isn't a fixed percentage or a curve, and you don't see a numeric score.

What happens if I don't pass the COT exam?

It depends on which part:

Multiple-choice exam: IJCAHPO sends a retest application. You can retest up to two more times within 12 months of your first exam date, with 90 days to test after each retest application is processed. After those 12 months, you start the application process again.
Skill Evaluation: pass some skills and you retest only the ones you missed, within the same 24-month window; pass none and you reapply and repeat the whole Skill Evaluation. IJCAHPO caps the number of attempts; if you run out of attempts or time, you start again with a new multiple-choice application.

What happens to my COA when I become a COT?

Keep your COA current until you have earned the COT: IJCAHPO requires it on the T2 and T4 routes. After you earn the COT, you can ask IJCAHPO in writing for a partial (pro-rated) refund of your COA recertification fee; the request has a 60-day deadline, which IJCAHPO's FAQ explains. For whether your COA stays listed after that, ask IJCAHPO's Certification Department.

What comes after the COT?

The Certified Ophthalmic Medical Technologist (COMT). COTs can qualify after 6,000 hours worked as a COT under an ophthalmologist's supervision in the 60 months before applying, plus CE credits, and IJCAHPO's COMT page lists the other routes. The COMT adds its own multiple-choice exam and a Performance Test; current COTs don't retake the Skill Evaluation.

Official sources

IJCAHPO can change its rules at any time; these pages have the current versions:

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