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A 37-year-old member asked:

What causes loss of vision in people who have brain tumours or cancer?

1 doctor answer2 doctors weighed in
Dr. Bennett Machanic
Neurology 52 years experience
Some possibilities: Tumor may grow nearby visual pathways, and some tumors directly affect the optic nerve or chasm. Others may dramatically increase intracranial pressure by mass effect, which indirectly can cause visual loss. In fact, any increased pressure for a variety of reasons can cause obscurational episodes.
Dr. Laurentia Nodit
Pathology 27 years experience
In addition side effects of therapy (steroids, radiation) or vascular changes can bring an additional component.
Nov 8, 2012
Dr. Laurentia Nodit
Pathology 27 years experience
Side effects of therapy (steroids, radiation) or bleeding are also possibilities.
Nov 8, 2012
Dr. Bennett Machanic
Neurology 52 years experience
Provided original answer
Fully agree. Thanks for adding that.
Nov 8, 2012

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Last updated Sep 28, 2016

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