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It is likely that you are experiencing the symptom of dilated non-reactive pupil due to the cerebral aneurysm and/or repair that affected sympathetic nerves of the pupil, causing the pupil to remain more dilated. The recent periorbital swelling of the left eye is likely related to underlying inflammation and/or infection, and I suggest that extension of any sinus infection to the eye and/or the brain be exclude with tests including CT Scan of the orbit
and brain. It is also important to closely evaluate the area of the brain with the aneurysm to exclude any bleed and/or infection contributing to the intermittent stiff neck. Complete blood count, blood culture, gram stain, urinalysis, and/or CSF
lumbar tap may be considered. In the meantime, I suggest that you follow-up with your eye doctor for closer evaluation and possible prescription for medication such as dicloxacillin 500 mg 4 times daily for 10 days. In addition, I suggest that you switch to using warm/hot compresses twice daily for 2 weeks.
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