Practise Certified Ophthalmic Assistant (COA) Examination with a short sample and answer explanations. These are independent learning materials, not official exam questions or a pass prediction.
Exam outline and official sources
International Joint Commission on Allied Health Personnel in Ophthalmology (IJCAHPO) · COA Examination Content Areas, effective August 1, 2025; verified through the current official COA certification page on October 13, 2026. The workbook label matches the official credential.
This original 20-question sample covers selected topics across the outline. It does not reproduce official exam questions or cover every tested topic.
- Certified Ophthalmic Assistant — IJCAHPO
- COA Examination Content Areas — Effective 8/1/2025
- Core Criteria Handbook for Certification and Recertification — 2019 2nd Edition
- IJCAHPO Core Examination Content Areas — Copyright 2019–2020
- Visual Acuity Testing in Adults — EyeWiki
- Relative Afferent Pupillary Defect — EyeWiki
- Standard Automated Perimetry — EyeWiki
- IOP and Tonometry — EyeWiki
- Biometry for Intra-Ocular Lens (IOL) Power Calculation — EyeWiki
- Optical Coherence Tomography — EyeWiki
- Retinal Detachment — National Eye Institute
- Diabetic Retinopathy — National Eye Institute
- Preventing Eye Infections When Wearing Contacts — CDC
- Cyclopentolate Hydrochloride Ophthalmic Solution — DailyMed Label
- Recommendations for Disinfection and Sterilization in Healthcare Facilities — CDC
- Use the Teach-Back Method: Tool 5 — AHRQ
- Clinical Safety: Hand Hygiene for Healthcare Workers — CDC
- Glaucoma and Eye Pressure — National Eye Institute
- Cover Tests — EyeWiki
- Lensometry — EyeWiki
- Echography (Ultrasound) — EyeWiki
- Objective Refraction Techniques: Retinoscopy — University of Utah Moran CORE
- Dry Eye — National Eye Institute
- Clinical Refraction — University of Utah Moran CORE
- Fluorescein Angiography — EyeWiki
- Cleaning and Disinfection: Tonometer Measuring Prisms and Contact Lenses — Haag-Streit
- DGH 500 Pachette Operator's Manual — DGH Technology
- Relative Afferent Pupillary Defect (RAPD) — University of Utah Moran CORE
- Scanmate Ultrasound Devices Operator's Manual, v4.3 — DGH Technology
Certified Ophthalmic Assistant (COA) Examination
Start with 20 free questions, then review the explanations and any topics you missed.
A patient reports new flashes, many floaters, and a dark curtain. While promptly alerting the clinician, which additional history question best characterizes the current episode?
Certified Ophthalmic Assistant (COA) Examination
Flashcards
History and Documentation
Previous corneal refractive surgery
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