DOI: https://doi.org/10.36347/sjmcr.2026.v14i11.036

Pages: 2574-2582

Capsular Bag Distension Syndrome (CBDS) is a rare complication of cataract surgery. It is characterized by the accumulation of fluid, retained material, or viscoelastic substances in the capsular bag, causing a space between the intraocular lens (IOL) and the posterior capsule. We report a case of sudden decrease in visual acuity with gradual worsening in a patient with late-onset CBDS. A 73-year-old woman experienced a sudden decrease in visual acuity and gradual worsening in her left eye approximately 10 years after undergoing bilateral cataract surgery. Before ophthalmic evaluation, any sudden sight or life-threatening disease was ruled out by neurological and rheumatological evaluation. Slit-lamp examination and anterior optic coherence tomography (OCT) revealed late-onset CBDS and Nd:YAG laser posterior capsulotomy was performed. Late-onset CBDS cases may experience sudden decreased visual acuity, which is hypothesized to occur when the trapped fluid becomes voluminous enough to shift the lens position just enough for it to the point of being symptomatic.