A RARE DIAGNOSIS IN THE EMERGENCY DEPARTMENT: THE COMMOSI RETINA

NTRODUCTION: Commosi retina is seen after high-energy blunt traumas that target the eye directly, especially football, golf, and direct impact of a baseball. It was first described by Berlin

in 1873 and is therefore also called Berlin edema. After blunt ocular trauma, mechanically concussive force is transmitted to the posterior part of the eye and produces excessive pressure

across the retina. Histologically, it is characterized by disruption of the integrity of the photoreceptor outer segments, usually without damaging other retinal layers. The outermost layers of

the retina (photoreceptor outer segment and retinal pigment epithelium) are the most vulnerable to damage. Most cases of commosi retina (Berlin’s edema) experience temporary gray-white

staining and this condition is easily diagnosed clinically.

CASE: A 20-year-old male patient was admitted to our emergency department with the complaint of decreased vision in his left eye. In his story, it was learned that a friend hit him in the eye.

The patient had no known systemic disease. The patient’s vitals were stable on arrival. The pupil diameter of the right eye was increased, the light reflex was bilaterally positive and the vision

decreased. Neurological examination was normal. After a detailed eye examination of the patient, a diagnosis of commogio retina (Berlin edema) was made. The patient was discharged with

the recommendation of outpatient control. In the subsequent follow-ups, the patient’s vision returned to normal.

CONCLUSION: The commosi retina usually arises after high-energy trauma. Our case arose due to minor trauma.