Practice Test GeeksABO - American Board of Ophthalmology Practice Test
← All ABO Flashcard Decks

Neuro-Ophthalmology and Orbit Flashcards

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

Read the first 7 Neuro-Ophthalmology and Orbit flashcards as text

  1. A 10-year-old has an orbital floor fracture after trauma with limited upgaze, nausea, bradycardia, and minimal external signs. What is the best management?

    Answer: Urgent surgical release of the entrapped tissue

    A 'white-eyed' trapdoor fracture with muscle entrapment and oculocardiac reflex needs urgent repair to prevent muscle ischemia.

  2. After eyelid surgery, a patient has tense proptosis, an RAPD, and markedly elevated IOP from a retrobulbar hemorrhage. What is the immediate treatment?

    Answer: Lateral canthotomy and cantholysis

    Orbital compartment syndrome needs immediate canthotomy and cantholysis to decompress the orbit.

  3. A 75-year-old with jaw claudication and sudden vision loss from pallid disc edema is suspected of having giant cell arteritis. What is the best next step?

    Answer: Start high-dose corticosteroids immediately

    Steroids should not be delayed for biopsy, because the fellow eye is at high risk and the biopsy stays diagnostic for weeks.

  4. In the Idiopathic Intracranial Hypertension Treatment Trial, what did adding acetazolamide to a low-sodium weight-loss diet achieve?

    Answer: Modest improvement in perimetric mean deviation

    Acetazolamide plus diet modestly improved visual field mean deviation, papilledema grade, and quality of life compared with diet alone.

  5. A patient has a right hypertropia that worsens on left gaze and on right head tilt. Which muscle is paretic?

    Answer: Right superior oblique

    The Parks-Bielschowsky three-step test points to a right fourth nerve (superior oblique) palsy.

  6. A 50-year-old has an acute painful third nerve palsy with a dilated pupil. What is the most appropriate next step?

    Answer: Urgent CTA or MRA to exclude a posterior communicating artery aneurysm

    Pupil involvement suggests compression, most importantly from a PCOM aneurysm, which needs emergent vascular imaging.

  7. Which mitochondrial DNA mutation in Leber hereditary optic neuropathy has the best prognosis for spontaneous visual recovery?

    Answer: 14484

    The 14484 mutation has the highest rate of spontaneous recovery, while 11778 is the most common and has the worst prognosis.