“…Corneal endothelium plays an important role in maintaining corneal transparency and its abnormality or dysfunction results in corneal edema. Ocular trauma, surgeries, Fuchs endothelial dystrophy, iridocorneal endothelial syndromes (ICE), stromal keratitis, and endotheliitis should be considered in the differential diagnosis of corneal edema [2,[4][5][6][7][8]. In our case, the absence of any ocular trauma or surgery, no signs of cornea guttae, and a normal specular microscopic examination in the fellow eye, and the lack of iris findings and typical specular findings for ICE syndrome in the left eye, led us to the diagnosis of endotheliitis of viral origin.…”