Torpedo Retinopathy

Abstract

Purpose: Torpedo lesions in the retina are rare. This study aimed to investigate torpedo-shaped lesions in the retina in an adult population and to determine the spectrum and features of the disease. Methods: The review of a database for clinical diagnosis identified nine patients who were diagnosed with torpedo-shaped lesions in the retina between June 2017 and February 2019. Fundus photography and optical coherence tomography (OCT) imaging were used to analyze the cases. Multicolor imaging was also performed. Results: Nine patients with torpedo-shaped lesions in the fundus were identified. Fundus images revealed that the lesion involved the macula in six eyes; in the remaining three eyes, the lesion was present outside the macula. OCT identified six patients with type 1 torpedo lesions, one with type 2, and two with type 3. On multicolor imaging, the lesion was visualized as a region of increased reflectance in blue, green, and infrared light in all eyes, with notably increased infrared reflectance in eyes with focal choroidal excavation. Choroidal neovascular membrane was evident in one patient on OCT angiography. Conclusion: Torpedo lesions in the retina can occur away from the macula and exhibit features similar to those of torpedo maculopathy. As such, the authors propose a change in the nomenclature for torpedo lesions in the retina from “torpedo maculopathy” to “torpedo retinopathy.