Practice Test Geeks(CO) Certified Orthoptist Practice Test
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Patient Care, Ethics & Clinical Procedures in Orthoptics Flashcards

7 cards from real CO practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. The double Maddox rod test is used to assess:

    Answer: Cyclodeviation (torsion)

    The double Maddox rod test quantifies excyclotorsion or incyclotorsion by measuring the angle required to realign the two horizontal streaks.

  2. An orthoptist discovers a billing code was entered incorrectly, resulting in over-reimbursement. The correct course of action is to:

    Answer: Correct the record, refund the payer, and document the error and correction

    Knowingly retaining an overpayment without correction constitutes fraud under the False Claims Act; prompt disclosure and repayment are required.

  3. When measuring fusional vergence amplitudes with a prism bar, you record the 'break' point as:

    Answer: When the patient reports diplopia or one eye is seen to deviate

    The break point is defined as the prism power at which the patient first reports diplopia or the examiner observes a manifest deviation.

  4. A teenager discloses to you confidentially that they are being bullied but denies self-harm ideation. Your ethical obligation includes:

    Answer: Document the disclosure, provide crisis resources, and discuss with the supervising physician about reporting obligations

    While strict confidentiality applies absent imminent harm, best practice requires documentation, providing support resources, and multidisciplinary consultation.

  5. A patient has a left hypertropia measuring 8 PD in primary position. The Parks three-step test helps identify the paretic muscle. In step two, the deviation is LARGER in right gaze. This implicates a cyclovertical muscle that acts in right gaze. Which pair is now suspect?

    Answer: Right superior rectus and left inferior oblique

    Step 1 (left hypertropia) implicates RS/LIO/LSO/RIO; step 2 (worse in right gaze) narrows to RSR or LIO, acting in adduction/abduction respectively.

  6. Which clinical scenario warrants IMMEDIATE referral to the emergency department rather than routine ophthalmology referral?

    Answer: Sudden complete third nerve palsy with pupil involvement in an adult

    A painful third nerve palsy with pupil involvement is a neurosurgical emergency suggesting posterior communicating artery aneurysm until proven otherwise.

  7. The AC/A ratio is calculated using the gradient method by comparing the deviation with and without:

    Answer: A defined lens power (typically +3.00 or -3.00 D) in place

    The gradient AC/A uses lenses to stimulate accommodation and measures the resulting change in deviation; ratio = change in deviation (PD) ÷ lens power (D).