RT Book, Section A1 Reichman, Eric F. SR Print(0) ID 57717267 T1 Chapter 162. Lateral Canthotomy and Cantholysis or Acute Orbital Compartment Syndrome Management T2 Emergency Medicine Procedures, 2e YR 2013 FD 2013 PB The McGraw-Hill Companies PP New York, NY SN 978-0-07-161352-1 LK accessemergencymedicine.mhmedical.com/content.aspx?aid=57717267 RD 2024/10/16 AB Acute orbital compartment syndrome is defined as an acute elevation of intraorbital pressure with resultant rapid ocular dysfunction. Patients typically present with ocular pain, proptosis, and blurry vision. Clinical signs of an acute orbital compartment syndrome include decreased visual acuity, elevated intraocular pressure (>40 mmHg), an afferent papillary defect, chemosis, mydriasis, diminished retropulsion of the affected globe to direct manual pressure, ophthalmoplegia, and fundoscopic signs of retinal ischemia (rare).1–28