- The Short Answer: What CRA Means Here
- Who Issues the Credential and What It Verifies
- What a Certified Retinal Angiographer Actually Does
- The Ten Content Areas Behind the Letters
- How You Earn the Credential
- Exam Format at a Glance
- Keeping the Credential Current
- Where Certified Retinal Angiographers Work
- Matching Your Prep to the Weights
- Frequently Asked Questions
- Here, CRA means Certified Retinal Angiographer, a credential issued through the Ophthalmic Photographers' Society (OPS) Board of Certification.
- Fluorescein Angiography (25%) and Fundus Photography (23%) together make up 48% of the published exam weights.
- The written exam has 175 multiple-choice questions with a two-hour limit, delivered at Prometric test centers.
- Eligibility requires an accepted imaging portfolio, two years of verified experience, and current CPR.
The Short Answer: What CRA Means Here
On this site, CRA stands for Certified Retinal Angiographer. It is a professional credential for ophthalmic imaging specialists who capture and manage diagnostic images of the retina, with special emphasis on angiography, the technique of photographing dye as it moves through the blood vessels at the back of the eye.
The three letters are shared by several unrelated credentials in other industries, so searching the acronym alone can send you in the wrong direction. Everything in this article refers only to the ophthalmic imaging credential. If you want the quick-reference versions of this question, our pages on what CRA stands for, CRA meaning, and what CRA certification is cover adjacent angles. This piece goes deeper into what the credential actually tests and verifies.
Who Issues the Credential and What It Verifies
The CRA credential is administered by the Ophthalmic Photographers' Society (OPS) Board of Certification. The examination content is organized around ten weighted areas that the OPS publishes in its CRA Program Guide (version 15.1, effective June 2026). Those weights are official exam objectives based on a 2017 job analysis, meaning they reflect what practicing angiographers actually do rather than a curriculum invented for test preparation.
Certification verifies two things at once: that you can demonstrate real imaging skill through a submitted portfolio, and that you can pass a standardized written examination covering the science and technique behind that work. The passing standard is criterion-referenced, using a Modified Angoff method. In practice, that means you are measured against a defined competency standard rather than against other test takers.
What a Certified Retinal Angiographer Actually Does
A retinal angiographer sits at the intersection of photography, pharmacology, and patient care. A typical session might involve:
- Positioning a patient at a fundus camera or scanning laser ophthalmoscope and obtaining sharp, well-exposed retinal images
- Explaining the procedure, screening for relevant history, and monitoring the patient through dye injection
- Capturing a timed sequence of fluorescein angiography frames as dye transits the retinal circulation
- Performing indocyanine green angiography when the clinician needs to visualize deeper choroidal vessels
- Acquiring monochromatic and autofluorescence images that highlight specific structures or metabolic changes
- Labeling, storing, and transmitting images so the treating physician can review them accurately
The images you produce directly influence diagnosis and treatment decisions for conditions such as diabetic retinopathy, macular degeneration, and vascular occlusions. That is why the credential combines technical skill with safety and pharmacology knowledge, not just photography technique.
The Ten Content Areas Behind the Letters
The clearest way to understand what CRA means in practice is to look at what the exam covers. The published weights sum to 100%, and they are far from evenly distributed.
| Content Area | Weight |
|---|---|
| Fluorescein Angiography with Fundus Camera or Scanning Laser Ophthalmoscope | 25% |
| Fundus Photography - Fundus Camera and Scanning Laser Ophthalmoscope | 23% |
| Applies the Principles of the Anatomy, Physiology, and Pathology of the Eye | 16% |
| General Photography | 10% |
| Patient Management and Patient/Operator Safety | 6% |
| Monochromatic Imaging and Fundus Autofluorescence | 5% |
| Pharmacology | 5% |
| Data and Image Management | 4% |
| Indocyanine Green (ICG) Angiography | 3% |
| Other Imaging Technology | 3% |
For a full walkthrough of each area, see our complete guide to all 10 CRA exam content areas. Below are the highlights that shape what the credential represents.
Fluorescein Angiography (25%)
The largest single area, and the one that gives the credential its name. Expect questions on the technique itself, the phases of dye transit, how to interpret what the images should show, and how to recognize problems during acquisition.
- Filter selection and the principle behind excitation and emission
- Timing and sequencing of the angiographic frames
- Recognizing artifacts and correcting technical errors
- Understanding what normal and abnormal filling patterns look like
Fundus Photography (23%)
The second-largest area covers capturing quality retinal images on both fundus cameras and scanning laser ophthalmoscopes. Because it underlies almost everything else you do, it is foundational as well as heavily weighted.
- Camera alignment, focus, and illumination control
- Troubleshooting poor image quality
- Differences between camera-based and scanning laser acquisition
Anatomy, Physiology, and Pathology (16%)
You cannot image what you do not understand. This area expects you to connect retinal structures to the disease processes that alter them, so that you know what the physician needs to see.
- Layers and landmarks of the retina and optic nerve
- Common retinal and choroidal conditions and how they appear on imaging
The smaller areas still matter. Pharmacology (5%) covers the dyes and dilating agents you work with, and Patient Management and Patient/Operator Safety (6%) addresses how to recognize and respond to adverse reactions. A candidate who ignores the small areas can lose points that are hard to recover elsewhere.
How You Earn the Credential
Certification is not just a test you walk in and take. The OPS requires you to clear several eligibility steps first. The full details live in our CRA requirements guide, but the core elements are:
- An accepted applicant-produced imaging portfolio. You submit examples of your own work for review.
- Verified experience. Your employing physician or institution verifies two years of retinal-angiography experience. Certain education or professional credentials can substitute for up to one year of that experience.
- Current CPR, including a current in-person skills assessment.
- A completed application, submitted at least eight weeks before your desired examination date.
Candidates who still need to complete the work-experience requirement may be eligible for Provisional CRA, which is a distinct status rather than a lesser version of the full credential. No mandatory OPS preparation course and no universal training-hour total has been verified, so the path in is flexible but depends heavily on hands-on experience in a clinical imaging setting. If you are still building toward that experience, our overview of CRA training is a useful starting point.
Fees
The initial examination fee is $465 for OPS members and $590 for non-members. The non-member price includes an optional one-year OPS membership, and the $50 non-refundable application component is already included in both figures rather than added on top. A retest costs $285. For the full picture, including renewal costs, see our CRA certification cost breakdown.
Exam Format at a Glance
| Feature | Detail |
|---|---|
| Delivery | Prometric computer-based test center |
| Number of questions | 175 multiple-choice |
| Answer choices | Four options, one correct or best answer |
| Time limit | Two hours |
| Reference materials | Closed book; scratch paper and pencil supplied |
| Identification | Valid government photo ID required |
| Wrong-answer penalty | None beyond earning no credit |
Two hours for 175 questions works out to roughly 40 seconds per question, so pacing matters. Because incorrect and blank answers are treated the same, you should answer every item. Outside references, personal calculators, and electronics are all prohibited.
Scoring and What We Do Not Know
The exam reports results on a scaled basis. Candidates who pass receive a pass notice without a numeric score, while candidates who do not pass receive a scaled score and a diagnostic report by content area, which is genuinely useful for targeting a retake. Initial results are provisional pending a 72-hour statistical verification, and the OPS guide allows for reporting delays during exam-development cycles.
Be cautious about any site that gives you a precise cut score or a current pass rate. No current numeric cut score is publicly verified, and no current 2026 pass rate is publicly verified. Historical OPS Board of Certification reports show 537 passes among 857 candidates tested (63%) between April 1997 and July 2018, but that is a long historical span, not a current first-attempt rate. We unpack what the available data does and does not support in our CRA pass rate analysis and our page on the CRA passing score.
Keeping the Credential Current
CRA certification is not permanent. Recertification runs on a three-year cycle that begins January 1 of the year after you earn the credential. You have two routes to renew:
- Continuing education credits: earn 15 CECs during the cycle, with at least five coming from official OPS or OPS Board of Certification pre-approved courses and workshops.
- Retesting: retake the examination by the end of year three.
Certain categories, including teaching, eligible non-OPS-approved attendance, and publication, are capped at ten credits each, and eligible non-OPS attendance earns 0.5 CEC per hour. The renewal fee is $100 for members and $225 for non-members. If you choose to retest instead, you pay the examination fee without an additional recertification fee.
Where Certified Retinal Angiographers Work
Angiographers are most often employed in settings where retinal disease is diagnosed and managed:
- Retina specialty practices
- Ophthalmology group practices with in-house imaging departments
- University and teaching hospital eye institutes
- Hospital-based ophthalmology clinics
- Clinical research programs that rely on standardized retinal imaging
The employer verification built into the eligibility pathway reflects this reality: the credential is designed around people already working under a physician or institution. For a closer look at the job market, see our overview of CRA jobs, and for compensation context read the CRA salary guide and our analysis of whether the certification is worth it.
Matching Your Prep to the Weights
Rather than a generic study routine, the most useful principle for this exam is simple: let the published weights decide where your hours go. Since angiography and fundus photography account for 48% of the exam, they deserve the largest share of your time, but the smaller areas are where candidates with strong hands-on experience are often caught off guard.
Foundations First
- Review ocular anatomy, physiology, and common pathology (16%)
- Revisit General Photography principles (10%) such as exposure, optics, and light behavior
The Heavy Hitters
- Work through Fundus Photography on both camera and scanning laser platforms (23%)
- Study Fluorescein Angiography technique, timing, and troubleshooting (25%)
The Smaller Areas
- Pharmacology and Patient Management/Safety
- Monochromatic imaging, autofluorescence, ICG angiography, and other imaging technology
- Data and image management
Full-Length Practice
- Take timed sets in the 175-question, two-hour format
- Review misses by content area, mirroring the diagnostic report a failing score would produce
For a fuller strategy, see our CRA study guide, our honest assessment of how hard the CRA exam is, and our one-page CRA cheat sheet for last-minute review. When you are ready to test yourself against realistic questions in the exam's format, try the practice questions on our main practice test site.
Key Takeaway
Apply your first extra study hours to the two largest areas, then use practice results to catch weakness in the smaller ones. Timed practice matters because you have roughly 40 seconds per question across 175 items.
Frequently Asked Questions
CRA means Certified Retinal Angiographer, a credential offered through the Ophthalmic Photographers' Society Board of Certification. It recognizes specialists who capture retinal images, including fluorescein and indocyanine green angiography.
The examination itself is a computer-based written test of 175 multiple-choice questions given in two hours at a Prometric center. Practical skill is assessed separately through the imaging portfolio you submit as part of your application. Older OPS pages mention a separate performance assessment, but they conflict with the June 2026 guide, which controls.
The initial fee is $465 for OPS members and $590 for non-members, with the non-member price including an optional one-year membership. A retest is $285. Renewal is $100 for members and $225 for non-members.