The surgical management of thyroid-related upper eyelid retraction.

Excision of Müller's muscle can usually correct thyroid-related upper eyelid retraction. A transcutaneous approach to Müller's muscle was used in 22 eyelids. The findings at surgery included diffuse eyelid scarring, disinsertion of the levator aponeurosis, fat herniation, and changes resembling dermatochalasis. Identification and correction of these factors, complemented anterior resection of Müller's muscle and influenced final eyelid position and cosmesis.