Two things I think of with the eye. One could be corneal irritation or drying from the anesthesia...and antibiotic eye ointment should help. The other is Horners Syndrome which is where there is some nerve trauma causing the third eyelid to go up and some other changes your vet will determine.
The shaking her head can come from any irritation from the removal of the plug.
I would plan on taking to the vet in the morning. They need to look in the ear and eye.
Dr.V
Dr. D.A. Vamvakias
Veterinarian