Retinal detachment is an ophthalmologic emergency that requires immediate medical attention as it can potentially lead to permanent vision loss. The gold standard for diagnosing retinal detachment is dilated funduscopic exam. However, when this exam is not feasible such as in an emergency room setting or if visualization of the posterior portion of the eye is not possible due to vitreous hemorrhage or dense cataracts, ocular ultrasound provides a readily available and effective alternative. We present the sonographic appearance of chronic retinal detachment in a 24-year-old female with a longstanding history of poorly controlled type 1 diabetes who could not undergo dilated funduscopic exam due to intra-ocular hemorrhage. While retinal detachment is more likely to be detected by radiologists on computed tomography (CT) or magnetic resonance imaging (MRI), radiologists should be aware of the ultrasound findings as well, especially as it becomes a more frequently utilized method for diagnosing retinal detachment in an emergency room setting.