The orbit is divided into 5 surgical spaces: subperiosteal, extraconal, sub-Tenon, subarachnoid, and intraconal.
The type of surgical approach to the orbit is based on the location of the pathology. A good understanding of orbital anatomy enables an appropriate surgical plan that minimizes morbidity.
Orbital decompression surgery is performed in cases of thyroid eye disease to address compressive optic neuropathy, disfiguring proptosis, or corneal exposure.
Excerpted from BCSC 2020-2021 series: Section 10 - Glaucoma. For more information and to purchase the entire series, please visit https://www.aao.org/bcsc.