2020–2021 BCSC Basic and Clinical Science Course™
8 External Disease and Cornea
Chapter 14: Clinical Aspects of Toxic and Traumatic Injuries of the Anterior Segment
Concussive (Blunt) Trauma
Corneal Changes From Blunt Trauma
Blunt trauma to the cornea can result in abrasions, edema, tears in the Descemet membrane (Fig 14-12), and corneoscleral lacerations, usually located at the limbus. Traumatic posterior annular keratopathy or corneal endothelial rings have also been described; these rings are whitish gray and occur directly posterior to the traumatic impact. The endothelial rings appear within several hours of a contusive injury and usually disappear within a few days.
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.