Impact of orbital decompression on severe hypertropia in patients with thyroid eye disease.

The study aims to present the impact of orbital decompression on isolated severe hypertropia in patients with thyroid eye disease (TED). It is a retrospective case series of three adult male patients presented with isolated severe hypertropia associated with TED and underwent orbital decompression. Two of three patients had complete resolution of their severe hypertropia with insignificant extraocular muscle movement restriction following only medial and floor orbital decompression. The third one had restriction of his extraocular motility, especially the fixating eye in upgaze and significant partial improvement of his hypertropia occurred following orbital floor decompression alone. In conclusion, orbital decompression may result in complete or partial resolution of isolated severe hypertropia in patients with TED.