<p><i>Purpose</i>: To describe clinically and pathologically the rare occurrence of calcification and osseous metaplasia in lens remnants in both eyes of a patient with pseudophakic chronic uveitis.</p> <p><i>Methods</i>: We performed 25-gauge pars plana vitrectomy, removal of dislocated intraocular lens (IOL), and secondary IOL fixation in the left eye. A similar procedure was performed in the right eye with 27-gauge pars plana vitrectomy.</p> <p><i>Results</i>: The postoperative visual acuities were 20/30 OD and 20/125 OS. Hematoxylin and eosin staining demonstrated an abundance of calcified tissue and rare osteoclasts in lacunae, compatible with osseous metaplasia (cataracta ossea).</p> <p><i>Conclusion</i>: To our knowledge this is the first clinicopathologic report demonstrating cellular metaplasia that resulted in osseous transformation of the cortical lens remnants into bone in both eyes of a psuedophakic patient with chronic granulomatous pan uveitis of unknown etiology. The surgical technique described in the supplemental videos demonstrates an effective way of managing this complication.</p
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