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Old 08-04-2012
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Eye Cause of a sudden unilateral loss of vision

A 32-year-old woman is brought to the emergency department by ambulance, following a minor motor vehicle accident. The vehicle she was driving left the road and hit a roadside light pole. She sustained minor cuts and scrapes, but reports that she lost control of the vehicle when she suddenly could not see out of her right eye. This loss of vision occurred prior to the accident. Fundoscopic examination reveals the right optic nerve head is swollen and edematous, consistent with inflammation of the uveal tract (uveitis). The left fundus appears normal. What is the most likely diagnosis?

a) Cytomegalovirus
b) Increased intracranial pressure
c) Multiple sclerosis
d) Ocular melanoma
e) Toxoplasmosis
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Old 08-04-2012
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Old 08-04-2012
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is it MS??
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@anomali: why not Multiple Sclerosis?
Just curious why you went with Toxoplasmosis.


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@anomali: why not Multiple Sclerosis?
Just curious why you went with Toxoplasmosis.

MS is not a/w uveitis(MS is a central demyelinating disorder so no question of choroid involvement)......toxoplasmosis is known to cause chorioretinitis( the choroid and retina both, and choroid is a part of uveal tract of eyeball)
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Old 08-04-2012
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Multiple sclerosis, but the lack of eye pain makes me unsure
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Doesn't MS cause retro bulbar neuritis which would not cause swelling of optic nerve head . Could be toxo
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Default correct answer

The answer is c) Multiple sclerosis

Retrobulbar (behind the globe) uveitis is a common presenting symptom of multiple sclerosis.

As for Toxoplasma - infection typically causes retinal lesions.
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