Brown haze in an Allergan SI-40NB silicone intraocular lens

We report a case of brown haze in an 83-year-old Japanese man with an Allergan silicone intraocular lens (IOL). The day after surgery, the IOL in the capsular bag was opaque. The patient subsequently had an IOL exchange. Microscopic examination of the extracted IOL showed numerous spheroid structures on the optic. Although the exact cause of this complication is unknown, water incorporated into the material may have had a role in the development of the sphere-like structures.