Abstract

Intra-ocular lens (IOL) calcification is a rare yet serious complication, can necessitate IOL exchange, presenting as clouding within the optic. In this case, a 77-year-old male experienced gradual vision loss in his left eye (LE) over four years post-cataract surgery a decade ago. His BCVA was 3/60 in the LE, with the anterior segment displaying a clear cornea but an opacified IOL within the capsular bag. Ultrasound Biomicroscopy (UBM) revealed hyperechoic reflections from the optic and haptics in the left eye. Image J software used on UBM images, indicated a significant difference in optical density compared to the right eye.
The patient underwent anterior vitrectomy and IOL exchange with a three-piece sulcus Posterior Chamber IOL with optic capture in the capsular bag, resulting in improved visual acuity of 6/18.
Microscopic examination revealed whitish calcium carbonate crystal deposits on the optic and haptics of the removed IOL, which were clearly visible under polarized light.

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