You might call your eye doctor's office and describe what happened. I'm wondering if you are sensitive to the eye dilation solution? Or it could be just a coincidence that you got the sinus infection after your appointment.
I hate when they dilate my eyes, they stay that way forever, I am very sensitive to the drops, even when they neutralize after, I still have issues.
I would certainly call the doctor's office and let them know what happened. It could be a coincidence, but, also could be a type of allergy, they can do weird things to folks at times.