COA Exam Prep: Ophthalmic Asst

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About this app

Prepare for the COA exam, the Certified Ophthalmic Assistant credential from IJCAHPO, in a study app built like a dim exam lane. A lit acuity chart comes into focus as more of your answers go right.

PATIENT WORK-UP
Read a patient's complaint and chart note, then make three calls. Triage it as emergent, urgent or routine. Pick the next test. Put the steps in order, such as acuity before pupils and pupils before dilation. Every choice comes with a reason. Cases cover chemical injuries, sudden vision loss, flashes and floaters, red painful eyes, pupils and neuro signs, double vision, glaucoma visits, contact lens problems, post-op visits and routine exams.

LENS BENCH (FREE)
Three exam-practice calculators, always free: Snellen to decimal and logMAR, plus-to-minus cylinder transposition, and spherical equivalent. Each one shows the working. These are for exam practice and are not patient-care tools.

STUDY EVERY CONTENT AREA
• Scored ten-question sets with results by content area
• Multiple choice, true or false, flashcards and term matching
• Missed-question review and practice by content area
• A searchable glossary of eye care terms and abbreviations
• Lens math and quick references with worked examples
• The exam outline with IJCAHPO's 22 content areas and weights, effective 8/1/2025

COME BACK TO WHAT MATTERS
Your lane shows today's work-up, your weakest area, your missed questions and a countdown to your exam date. Progress stays on your device. No account needed.

FREE AND FULL ACCESS
A full scored set, a sample of each study mode, the first case in every work-up category and all of the Lens Bench are free. Full access opens everything with a subscription or a one-time lifetime purchase.

Official sources (also linked in the app):
- IJCAHPO: Certified Ophthalmic Assistant: https://www.jcahpo.org/certification/certifications/certified-ophthalmic-assistant/
- IJCAHPO: COA Exam Content Areas (effective 8/1/2025): https://documents.jcahpo.org/documents/Certification/IJCAHPO_Core_Criteria_Exam_Content.pdf
- IJCAHPO: Core Content Area Breakdown: https://documents.jcahpo.org/documents/Certification/IJCAHPO_Core_Examination_Content_Areas.pdf
- IJCAHPO: Core Certification Criteria Handbook: https://documents.jcahpo.org/documents/Certification/IJCAHPO_Core_Criteria.pdf
- IJCAHPO: Fee Schedule and Timeline: https://documents.jcahpo.org/documents/Certification/Criteria_For_Certification_37.pdf
- IJCAHPO: Recertification: https://www.jcahpo.org/certification/recertification/
- CDC: Disinfection and Sterilization Recommendations (U.S. Government): https://www.cdc.gov/infection-control/hcp/disinfection-sterilization/summary-recommendations.html
- CDC: Preventing Epidemic Keratoconjunctivitis (U.S. Government): https://www.cdc.gov/conjunctivitis/hcp/infection-control-ekc/index.html
- HHS: HIPAA Privacy Rule (U.S. Government): https://www.hhs.gov/hipaa/for-professionals/privacy/index.html
- National Eye Institute: Eye Conditions and Diseases (U.S. Government): https://www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseases
- American Academy of Ophthalmology: Color Codes for Topical Ocular Medications: https://www.aao.org/about/policies/color-codes-topical-ocular-medications
- American Academy of Ophthalmology: Guideline for Telephone Screening of Ophthalmic Problems: https://aao.org/Assets/ca9773f6-32e3-468e-8d5a-97b44433beca/637546193180700000/telephone-screening-guideline-logo-am2-pdf

This app is an independent study aid. It is not affiliated with, endorsed by or sponsored by the International Joint Commission on Allied Health Personnel in Ophthalmology (IJCAHPO). COA and IJCAHPO are marks of their owner. This is not a government app and does not provide any government service.

Study material for exam preparation only. It is not medical advice and not for patient care. Follow your doctor and your practice protocols.

Privacy policy: https://www.dmpenterprisellc.com/privacy-policy
COA ophthalmic assistant prep: triage work-ups, exam sets and free lens math
Updated on
Nov 10, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
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What’s new

First release: Patient Work-up triage cases, the free Lens Bench, and study modes for all 22 COA content areas.