Will Hyperthyroidism Affect Plastic Surgery Results?

You are very lucky because it is likely that you had some degree of hyperthyroidism at the time of your surgery. Hyperthyroid patients can have severe reactions to anesthesia and the epinephrine in local anesthetic during surgery including sweating, increased body temperature, increased heart rate, abnormal heart beats, coma and even death. It can also prolong or prevent the healing process after surgery.
As long as it is controlled and treated your cosmetic surgery results should have a normal life span. However if left untreated hyperthyroidism can go on to Grave's disease with bulging eyes, retracted eyelids and visible white areas above and below the iris of the eyes. The eyes look big rather than small.

It is most likely that your hyperthryroidism, if well controlled, will have little effect on your result. However, there are conditions such as Grave's disease that can profound effects on the overall appearance of the eyes.