Archives for February 2017

Neuro-ophthalmology Question of the Week: Optokinetic Testing

Question: In which of the following conditions is optokinetic stimulus testing useful?
Infantile nystagmus
2. Patients claiming complete blindness
3. Homonymous hemianopia
4. Internuclear ophthalmoplegia
5. Dorsal midbrain syndrome
6. Optic neuritis


Neuro-ophthalmology Question of the Week: Optic Neuropathy or Maculopathy

Which of the following clinical tests can help differentiate between optic neuropathy and maculopathy in a patient with a reduction in visual acuity?
1.Swinging flashlight pupillary reactions
2. Amsler Grid
3. Dilation lag in darkness
4. Anisocoria
5. Photostress recovery test
6. Color vision/saturation


Neuro-ophthalmology Question of the Week: Dilated pupil constricts to pilocarpine 0.125%

A 35-year-old woman is evaluated for a 2-week history of photophobia and awareness that her right pupil is larger than the left. Examination shows absent right pupillary response to light stimulation of either eye. There is no diplopia and no evidence of extraocular muscle palsy. Upon local instillation of 0.125% pilocarpine, the larger pupil becomes smaller than the contralateral pupil.

Which of the following is the most likely location of the lesion?
1. ciliary ganglion
2. Edinger-Westphal nucleus
3. oculomotor nerve
4. optic chiasm
5. pretectal nucleus