Commotio retinae, also known as a concussion of the retina, is a type of eye injury that occurs when the retina, the light-sensitive layer of tissue at the back of the eye, is bruised or damaged. This type of injury is most commonly caused by blunt trauma to the eye, such as a blow from a fist, a ball, or a piece of equipment.

Symptoms of commotio retinae include blurred vision, decreased visual acuity, floaters, and flashes of light. Additionally, patients may experience pain, redness, and sensitivity to light. These symptoms may appear immediately after the injury or may develop gradually over time.

Diagnosis of commotio retinae is typically made through a physical examination of the eye by an ophthalmologist. The doctor may use a variety of diagnostic tools such as ophthalmoscopy, fundus photography, and optical coherence tomography to examine the retina and assess for any abnormalities.

Common treatment methods for commotio retinae include close observation and monitoring, as well as the use of eye drops or ointments to reduce inflammation and pain. In some cases, laser treatment or surgery may be required to repair the damaged retina.