The eyes of hyperthyroidism patients will protrude outward, which is caused by the hyperplasia of fat tissue behind the eyeball. It is impossible to enlarge the orbit because there are bones at the back and up and down, and the hyperplastic tissue can only press the eyeball to protrude forward.

Knowing this, your problem will be easy to explain. Because it is impossible to restore the eyeball without eliminating the oppression of those hyperplastic tissues. Besides, your sister has a long medical history. If you want to rely on drug treatment, it is estimated that you can only control hyperthyroidism and not reverse eye symptoms. Therefore, I suggest that you remove a part of the orbital bone by surgery, so that the hyperplastic tissue can be accommodated, and the pressure on the eyeball can be reduced or even eliminated. Only in this way can the beauty be restored. There is no risk in the operation itself. A professional eye hospital should be able to complete it.

Of course, it is very important to control hyperthyroidism and not to have another attack.

Recommend one I am familiar with:

Eye Hospital Affiliated to Sun Yat-sen University

Guangzhou Xianlie South Road (I don't remember the exact number, it's next door to Zhixin Middle School)

I hope it helps you.