Quiz: Optic Nerve in a 7-Year-Old

These pictures represent the right and left optic nerve in a 7-year-old boy:

Last Updated: October 31, 2022

28 thoughts on “Quiz: Optic Nerve in a 7-Year-Old”

  1. Thought the vessels at the LE disc was abnormally tortuous and anglelated. The disc LE is not typical of Morning Glory though

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    • It may be tilted and there may be some tortuously but this is also tough to determine with such a cropped photo. In either case, those findings are frequent variants of normal and do not suggest anything specific.

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  2. From the picture, it looks like even the left eye is not normal, the optic disc seems raised with no distinct margin so I think both discs are hypoplastic.

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    • This patient was otherwise normal. However, one must be aware of and on the lookout for the associated conditions as outlined in the quiz.

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    • The left disc is clinically normal. There is a scleral crescent present temporally but the dis is not swollen and definitely not grossly abnormal such as with Morning Glory disc, those will have a significant glial component to them. As one looks at the overlying blood vessels, they are clearly seen and not obscured, also another sign that the disc is not swollen.

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  3. we should be able to revisit the cases anytime – maybe not allowed to select options again – but once we have taken a quiz we cannot see it again- this way we cannot revise and learn

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    • Hi Alka – thank you for this question. You can re-take the quizzes anytime using either of these methods:

      (1) Clear your web browser cache and reload the page; or

      (2) Take the quiz on another device (e.g. phone instead of laptop).

      Hope this helps!

      Reply
    • Not so rare actually, I see this commonly in the pediatric clinic when an infant or child presents with either decreased vision in one eye or with “nystagmoid eye movements” when bilateral.

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