NBEO Neuro-Optometry & Visual Fields Flashcards

Idiopathic intracranial hypertension (pseudotumor cerebri) is most commonly associated with which demographic?

Answer: Obese women of childbearing age

IIH predominantly affects obese women of childbearing age; weight loss is the most effective long-term treatment, and lumbar puncture opening pressure exceeds 25 cmH2O.

A patient has a complete right sixth nerve (CN VI) palsy. What is the characteristic eye position in primary gaze?

Answer: Right eye esotropia (converged)

CN VI palsy paralyzes the lateral rectus; the unopposed action of the medial rectus causes the affected eye to deviate nasally, producing an esotropia.

Which pattern on automated perimetry (Humphrey visual field) is most characteristic of glaucomatous damage?

Answer: Superior arcuate scotoma respecting the horizontal midline

Glaucoma preferentially damages arcuate nerve fiber bundles, producing superior (or inferior) arcuate scotomas that follow the horizontal raphe and respect the horizontal midline.

In testing color vision for optic nerve disease, which test is most sensitive for detecting acquired dyschromatopsia?

Answer: Farnsworth-Munsell 100-hue test

The FM 100-hue test is the most sensitive for acquired color defects from optic neuropathy, detecting subtle hue discrimination errors across the entire color spectrum.

Which cranial nerve palsy causes a patient to tilt their head away from the affected side to eliminate diplopia?

Answer: CN IV (trochlear)

A CN IV palsy causes ipsilateral hypertropia; patients compensate by tilting their head to the opposite shoulder, which reduces the excyclotorsion and hypertropia.

Cavernous sinus syndrome can cause palsies of all of the following cranial nerves EXCEPT which one?

Answer: CN II (optic nerve)

The optic nerve passes through the optic canal, not the cavernous sinus; CN III, IV, V1, V2, and VI all pass through or alongside the cavernous sinus and can be affected.