10 doctors weighed in:

What will happen to your pupils during a stroke or brain aneurysm?

10 doctors weighed in
3 doctors agree

In brief: Variable

Depends on part of brain nerves to eyes threatened.
Aneurysm may have unilateral signs dilation brain death dilated fixed wide pupils. Depends.

In brief: Variable

Depends on part of brain nerves to eyes threatened.
Aneurysm may have unilateral signs dilation brain death dilated fixed wide pupils. Depends.
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Dr. Tibor Becske
Neurology
3 doctors agree

In brief: It varies

A brain aneurysm can cause sluggish pupil and droopy eyelid on one side.
Similar things can happen from a stroke involving the brain stem, although there things get much more complicated. But stroke or aneurysm are not the only conditions that can affect the pupils. Any large mass lesion can cause pupillary asymmetry and sluggishness on one side.

In brief: It varies

A brain aneurysm can cause sluggish pupil and droopy eyelid on one side.
Similar things can happen from a stroke involving the brain stem, although there things get much more complicated. But stroke or aneurysm are not the only conditions that can affect the pupils. Any large mass lesion can cause pupillary asymmetry and sluggishness on one side.
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2 doctors agree

In brief: Depends

Pupils can change in many different ways depending on the location of the stroke or aneurysm.
They often get large on the side of stroke or aneurysm. They can get smaller as well.

In brief: Depends

Pupils can change in many different ways depending on the location of the stroke or aneurysm.
They often get large on the side of stroke or aneurysm. They can get smaller as well.
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