Quiz 6- Neuro Ophthalmology Leave a Comment / By Insight Ophthalmology / 12/12/2024 Welcome to Quiz 6- Neuro Ophthalmology Quiz on Insight Ophthalmology! This quiz comprises 5 MCQs. You will have 7 minutes to complete the quiz. Correct answers will be provided at the end of the quiz. So go ahead and test your insight. All the best! 1. Which of the following statements is true regarding the retinal ganglion cell terminals in the lateral geniculate nucleus (LGN)? The retinal ganglion cell terminals are not segregated by eye. Ipsilateral retinal ganglion cells synapse in layers 1, 4, and 6 of the LGN. Contralateral retinal ganglion cells synapse in layers 2, 3, and 5 of the LGN. Ipsilateral retinal ganglion cells synapse in layers 2, 3, and 5, while contralateral retinal ganglion cells synapse in layers 1, 4, and 6. None 2. A patient presents with homonymous hemianopia. Which of the following is the most likely location of the lesion? Optic nerve Frontal lobe Occipital lobe Optic chiasm None 3. A patient presents with abnormalities in both the fast-phase and slow-phase of optokinetic nystagmus (OKN). Based on this, which of the following is most likely to be seen in the patient? Slow-phase pursuit abnormalities indicating a lesion in the parieto-occipital lobe and formed visual hallucinations indicating a temporal lobe lesion Fast-phase recovery abnormalities suggesting a lesion in the occipital lobe and unformed visual hallucinations Slow-phase pursuit abnormalities indicating a lesion in the frontal lobe and pie-in-the-sky defects Fast-phase recovery abnormalities indicating a lesion in the temporal lobe and unformed visual hallucinations None 4. Which of the following statements is true regarding parietal lobe lesions? Parietal lobe lesions cause superior visual field defects with a decreased density of the visual field in the inferior part. Parietal lobe lesions are associated with right-left confusion and agnosia, and affect slow-phase pursuit movements toward the contralateral side. Parietal lobe lesions produce hemianopias that are denser superiorly and do not affect visual perception. Parietal lobe lesions typically result in hemianopias that are denser inferiorly, and are associated with agnosia and right-left confusion. None 5. Which of the following is true regarding the development of true disc edema? True disc edema is primarily caused by increased extracellular fluid accumulation around the optic nerve fibers. The increase in disc volume is due to swelling of axons rather than the accumulation of extracellular fluid. Breakdown of the blood-retinal barrier plays a major role in the development of disc edema. The cessation of axonal transport does not contribute to the swelling of the axons in disc edema. None You have reached the end of this quiz. Please click the Submit button to view the result.
