CPOA Study Guide 2026
Everything you need to pass the CPOA exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 CPOA Exam Format at a Glance
📚 CPOA Topics to Study (71)
✍️ Sample CPOA Questions & Answers
1. A patient is allergic to topical anesthetic. Which procedure must be postponed or modified?
Goldmann applanation tonometry requires a topical anesthetic for patient comfort and accurate measurement, so it cannot proceed without one.
2. Which type of prism is incorporated into spectacle lenses to treat binocular vision disorders?
Base-in or base-out prism is prescribed to help patients with convergence or divergence problems align their eyes properly.
3. Which neutralization technique uses a lens clock (Geneva lens measure) to determine the approximate prescription of an unknown lens?
A lens clock measures the curve on each surface of the lens, and combined with the lens index, the prescription can be approximated through surface power neutralization.
4. Which systemic disease is most strongly associated with an increased risk of developing open-angle glaucoma?
Diabetes mellitus is a significant risk factor for open-angle glaucoma, as it may affect aqueous outflow and optic nerve health through vascular and metabolic mechanisms.
5. A patient with 20/20 vision in one eye and 20/200 in the other who best-corrects to 20/20 in the weaker eye most likely has:
Amblyopia (lazy eye) is reduced best-corrected visual acuity in an eye without detectable organic disease; the vision cannot be fully corrected with glasses alone.
6. A patient's contact lens prescription specifies 'BC 8.6 / D 14.2 / -3.00 SPH.' What does 'SPH' indicate?
SPH (sphere) indicates this is a spherical lens without astigmatism correction, meaning no cylinder or axis is present.