Background: Endoscopic orbital decompression is a well-established technique for Graves orbitopathy treatment.
Aims: Measurement of the ethmoid volume and its correlation with proptosis reduction in patients undergoing endoscopic orbital decompression for Graves' orbitopathy.
Methods: We retrospectively reviewed clinical charts of 209 patients (319 orbits) operated by a surgeon at our institution between 1998 and 2019.