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For a pathological cause for dilated pupil in one eye only there should be other signs in the eye such as reduced vision ( as in optic neuritis), signs of blunt trauma
Ok. Is the vision reduced in the affected eye?
she is not sure. maybe slightly but she wears glasses so i don't think they are even
she is checking with her glasses on
Was there any injury or trauma to that eye ?
she does get migraines
she says the vision is no different. the color is a little?
Color in the sense the color of the eye or color vision?
For dilated pupil and altered color vision, the most likely cause is either an optic neuritis( inflammation of the optic nerve) or migraine could be the cause for these symptoms.
we do have a family history of aneurism. it this a possiblity.
For an aneurysm to cause a dilated pupil, it should be compressing on the pupillary fibres but at the same time the visual fibres also would get compressed thus resulting in reduced vision or part of the vision.
I would suggest her to get her eyes examined by an ophthalmologist for a detailed eye exam including a look at the optic nerve to rule out any optic neuritis or compressive cause. But considering the fact that her vision in that eye is not affected and is normal, it looks more so due to migraine( though not a typical sign of it).
Though not an emergency, it would do good the get her eyes examined at the available appointment. She would need to keep a close look at the vision in that eye in the meanwhile and report immediately to an ophthalmologist if altered.
I hope that addresses your concern. Please let me know if there is anything else that I can answer for you.
all set. thanks