NEUROLOGY
OCULAR PALSIES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is the point of convergence of the optic nerve called?
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Optical disc
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Fovea
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Macula
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None
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Explanation:
Detailed explanation-1: -The optic disc, also known as the optic nerve head, forms a slightly raised spot on the nasal side of the retina. Here, there are no photoreceptors, hence it is known as the blind spot of the eye. The optic disc has a slight cup-shaped depression, called the physiologic cup.
Detailed explanation-2: -Intracranial part Here, the optic nerve unites with its contralateral CN II to form the optic chiasm. There are also very important vascular structures that are closely related to the intracranial optic nerve: it lies medial to the internal carotid artery.
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