In which of the following conditions Berlin's edema is: (A) Open angle glaucoma, (B) After cataract surgery, (C) After concussional trauma, (D) Diabetic retinopathy
Answer is C. C i.e. After concussion trauma Blunt trauma to eye may produce Berlin's edema or commotio retinae Q which is a cloudy swelling characterized by a grey appaerance, most frequently in the temporal region. It may also manifest as cherry red spot in the foveal region.