A member asked:

When you have scotoma develop in one eye only and the patient has a pituitary adenoma, takes plaquenil, (hydroxychloroquine) and has ischemic microvascular disease, can you tell which one most likely caused the scotoma?

8 doctors weighed in across 3 answers

Ischemia. : Monocular ischemia most likely causes shots a in one eye. Plaquenil (hydroxychloroquine) and pituitary adenoma causes symmetrical bilateral schotoma.

Answered 9/8/2017

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Depends on VF defect: Plaquinil and ischmic optic nerve disease may produce similar visual field defects, however, examination should be able to differentiate the two. Pituitary field defects are quite different. A differentiation should be able to be ascertained.

Answered 8/27/2013

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Exam will help: Only with an exam can one pin down the etiology of the scotomama . The appearance of the optic nerve will help determine the cause. More than likely though it is not caused by the pituitary adenoida.

Answered 6/18/2013

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