After giving informed consent, the patient underwent phacoemulsification cataract extraction in his left eye. Preoperatively, the left cornea was clear (Figure, E). Surgery was uncomplicated. As a precaution, an injection of intracameral air was given at the end of surgery and the patient was postured supine for 6 hours postoperatively. On the first day postoperatively, the cornea was clear with an adherent endothelium. However, at 2 weeks, there was edema of the superior third of the cornea with a partial DMD distant from the temporal corneal incision. Visual acuity was reduced to 20/120. The next day, he underwent an injection of air into the anterior chamber with supine posturing. Postoperatively, his endothelium reattached with an unaided visual acuity of 20/30 (Figure, F). Postoperative specular microscopy revealed healthy endothelial cells, with cell counts of 2018/mm2 and 2275/mm2 in the right and left eyes, respectively.