- ACMO has 160 questions across 40 patient cases, delivered in 4 hours 30 minutes at Pearson VUE.
- Ocular disease is 65-75% of the exam; systemic conditions make up 25-35%.
- 2026-cycle fees are $670 for residents and $1,100 for other candidates.
- The June 4, 2027 exam closes registration May 21, 2027; late window costs $400 extra.
Exam Snapshot
If you need the entire Advanced Competence in Medical Optometry (ACMO) exam on one page, this is it. ACMO is administered by the National Board of Examiners in Optometry (NBEO) - note the official title uses "Competence," not "Competency." It's delivered through Pearson VUE test centers as 40 simulated patient cases, each carrying 4 multiple-choice items, for a total of 160 questions completed in 4 hours 30 minutes.
ACMO is not a stand-alone credential you hang on your wall. It's the examination component used inside the separate American Board of Certification in Medical Optometry (ABCMO) certification process. Passing ACMO by itself does not confer ABCMO board certification - it's one required piece of a larger application. For the full breakdown of how these pieces fit together, see our guide on what ACMO certification actually involves.
Domains at a Glance
ACMO's content is organized into two domains, and the weighting is deliberately lopsided. Knowing this ratio should shape every hour you spend reviewing.
Domain 1: Ocular Disease (65-75%)
This is the backbone of the exam. Expect heavy emphasis on glaucoma, anterior segment disease, and posterior segment disease, with clinical-image interpretation central to how cases are built.
- Glaucoma workup, staging, and management decisions
- Anterior segment pathology recognition from case presentation
- Posterior segment disease interpretation, often paired with imaging
Domain 2: Systemic Conditions (25-35%)
Smaller in share but still a meaningful chunk of your score. These cases test how systemic disease presents through the eye and how that changes patient management.
- Recognizing ocular signs tied to systemic disease processes
- Integrating medical history into a case-based treatment decision
- Cross-referencing drug and lab data relevant to systemic conditions
For a domain-by-domain study sequence, including how to allocate weeks based on this exact percentage split, read the ACMO Exam Domains Guide.
Key Takeaway
Because ocular disease carries roughly double or more the weight of systemic conditions, your review time should skew accordingly - do not split prep 50/50 between the two domains.
Question Format Rules
ACMO's format has a few mechanics that trip up unprepared candidates:
- Each of the 40 cases contains exactly 4 multiple-choice items - plan your case-based reading accordingly.
- Roughly 5-10% of items are multiple-response, allowing up to 3 correct selections.
- There is no partial credit on multiple-response items - you must select all correct answers and no incorrect ones to earn credit.
- Clinical/laboratory abbreviation lists and generic/trade-name drug lists are linked and available on-screen during testing, so memorizing drug spellings is less important than understanding drug classes and clinical reasoning.
Fees, Dates & Registration Windows
Fee and date mechanics change year to year, so keep this section bookmarked as your reference point.
| Item | Detail |
|---|---|
| Fee - resident candidates | $670 (effective for exams beginning August 2026) |
| Fee - other candidates | $1,100 (effective for exams beginning August 2026) |
| Next scheduled exam | June 4, 2027 |
| Registration opens | August 4, 2026 |
| Regular registration closes | May 21, 2027 |
| Late registration window | May 22-28, 2027 (+$400 fee) |
Missing the regular deadline by even a day pushes you into the late window and an extra $400. For a complete pricing walkthrough that also factors in ABCMO application and maintenance costs, see ACMO Certification Cost 2026 and the full ACMO Exam Dates 2026 calendar.
Eligibility Quick-Check
Before you register, confirm you meet one of these pathways:
- A VA residency with ACOE status of Accredited or Accredited with Conditions, completed or due for completion by June 30 of the exam year
- Another completed residency holding either qualifying ACOE status
- Active involvement in educating optometry residents
- Clinical privileges to provide optometric patient care at a federal facility
On top of one of those pathways, every candidate needs active licensure with therapeutic privileges held for at least 3 months before testing, and no licensure sanctions or active board investigations. A full explanation of each pathway, with documentation tips, is available in ACMO Requirements 2026.
How ACMO Connects to ABCMO Certification
Because ACMO is an input into the ABCMO certification process rather than a certification on its own, understanding the downstream requirements helps you plan even before you sit for the exam.
- Scores don't expire under NBEO policy, but ABCMO's standard application normally requires ACMO to have been passed within the previous 5 years.
- Older ACMO results may still be accepted if all other requirements are met and you can document 4 years of current, continuous medical-optometry practice.
- Separate ABCMO standard application fees apply: $700 in 2026 and $800 in 2027 - distinct from the ACMO exam fee itself.
- Maintenance of ABCMO certification requires active licensure, mandatory license CE plus qualifying medical-optometry elective CE, and a National Practitioner Data Bank self-query.
- Maintenance fee is $50 per year, billed on a 1-3-year renewal cycle; newly certified specialists may request an initial-enrollment fee waiver within their first 2 years.
This layered structure is why so many candidates search for plain-language explanations of the credential - start with What Is ACMO? or ACMO Certification if you're still mapping out the full pathway, and check Is the ACMO Certification Worth It? before committing budget and time.
Key Takeaway
Treat the ACMO exam fee and the ABCMO application fee as two separate line items in your budget - passing the exam does not automatically enroll you in certification.
One-Week-Out Review Plan
General study methodology - spaced repetition, timed blocks, active recall - only matters here in how it maps to ACMO's specific weighting. In your final week, sequence review around the domain split rather than treating both domains equally.
Ocular Disease Deep Review
- Run timed case sets emphasizing glaucoma staging and anterior/posterior segment disease
- Practice image-based cases without notes, since clinical-image interpretation is central to real cases
Systemic Conditions Pass
- Review how systemic disease markers show up in ocular presentation
- Practice referencing drug-class reasoning rather than memorizing trade names, since the drug list is provided on-screen
Format & Logistics Rehearsal
- Drill multiple-response items to internalize the no-partial-credit rule
- Confirm Pearson VUE appointment, ID requirements, and arrival time
For a longer-horizon prep timeline that starts months out rather than one week, see the ACMO Study Guide 2026. You can also stress-test your pacing and question-reading habits with full-length practice sessions on the main ACMO practice test platform before your real appointment.
Who Uses This Credential
Because ACMO feeds into ABCMO board certification, the candidate pool leans toward optometrists already working in settings with heavier medical-eye-care responsibility - federal facilities, VA-affiliated residencies, and residency education roles. If you're weighing whether pursuing this path fits your career trajectory, our analysis of ACMO Jobs and ACMO Salary Guide 2026 looks at how the credential is discussed in the field, without relying on invented figures.
FAQ
No. ACMO is the NBEO examination. ABCMO is the separate certifying board whose standard application requires a passing ACMO result, active licensure, and practice documentation. Passing ACMO alone does not make you board certified.
160 total - 40 simulated patient cases, each with 4 multiple-choice items - completed within a 4 hour 30 minute testing window at a Pearson VUE center.
For the June 4, 2027 exam, regular registration closes May 21, 2027. A late registration window runs May 22-28, 2027, but it carries an additional $400 fee on top of the standard exam fee.
NBEO scores themselves do not expire. However, ABCMO's standard certification application normally requires that ACMO was passed within the previous 5 years, though older results may be accepted with documentation of 4 years of current, continuous medical-optometry practice.
Ocular disease (65-75% of the exam) should get the majority of your study time, with particular focus on glaucoma, anterior segment disease, posterior segment disease, and clinical-image interpretation. Systemic conditions (25-35%) still deserves dedicated review but proportionally less time.