Purpose: We present two cases of late-onset capsular bag distension syndrome (CBDS). Observations: Two female patients were referred with decreased visual acuity and blurred vision. They had both undergone uncomplicated phacoemulsification and intraocular lens implantation into the capsular bag, seven and 13 years prior. Slit-lamp biomicroscopy and anterior segment optical coherence tomography demonstrated milky fluid between the intraocular lens and posterior capsules, consistent with late-onset capsular bag distension syndrome. A 25-gauge pars plana vitrectomy surgery was performed on each patient. This turbid retrolental fluid was successfully aspirated with posterior capsulotomy using 25-gauge pars plana vitrectomy surgery. Conclusions and importance: Late-onset capsular bag distension syndrome may occur up to 13 years following cataract surgery; the longest reported duration of onset. Anterior segment optical coherence tomography is useful in aiding diagnosis. Management with vitrectomy surgery has the advantages of complete clearance of the turbid fluid and microbial and pathological testing.
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