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UNLABELLED: Two cases of postoperative intraocular lens (IOL) calcification in patients implanted with the Akreos Adapt IOL at the time of combined phacovitrectomy are described, along with clinical review of all patients implanted with this IOL type at our institution between November 2006 and September 2008. The IOLs explanted from the 2 cases were examined using scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX). The SEM of the explanted IOLs showed crystalline anterior surface and subsurface deposits; by EDX, the deposits showed high concentrations of calcium and phosphorous, consistent with calcium apatite. Twenty patients (20 eyes) attended for cohort review, and none showed IOL opacification. The reason calcification occurred in the 2 cases remains unknown, but clinicians should be aware of this potential complication. FINANCIAL DISCLOSURE: No author has a financial or proprietary interest in any material or method mentioned.

Original publication




Journal article


J Cataract Refract Surg

Publication Date





1427 - 1431


Acrylic Resins, Aged, Calcinosis, Calcium, Device Removal, Electron Probe Microanalysis, Female, Humans, Lens Implantation, Intraocular, Lenses, Intraocular, Male, Microscopy, Electron, Scanning, Middle Aged, Phacoemulsification, Phosphorus, Postoperative Complications, Vitrectomy