Rare Case of Traumatic Intraocular Foreign Body within Capsular Bag: A Report

These findings of the case study are published in the Delhi J Ophthalmol in June 2026 by investigator Dr. Asmita Mittal and colleagues from the Department of Ophthalmology at Dr. Rajendra Prasad Government Medical College.

The specific case holds substantial significance for daily clinical practice because it vividly demonstrates how an initially asymptomatic projectile can insidiously provoke delayed traumatic cataract formation while masking severe underlying trauma. Ophthalmic surgeons must recognize that retained ocular projectiles often necessitate exceptionally complex surgical planning due to concurrent capsular damage, zonular compromise, and obscured anatomical visualization caused by dense media haze. Consequently, uncovering such hidden intracapsular anomalies remains absolutely vital for averting irreversible visual deterioration and preserving overall global structural integrity.

A seventeen-year-old male presented with progressive vision loss one month after experiencing minor ocular trauma, prompting comprehensive slit-lamp and B-scan ultrasound investigations that revealed a small iris defect alongside a 1.4-millimeter echogenic structure embedded within a dense traumatic cataract. Following this definitive diagnosis, the surgical team successfully performed complex phacoemulsification to carefully extract a 1.5-millimeter projectile from the posterior capsular bag and securely implanted a foldable intraocular lens, which ultimately resulted in a flawless restoration of 6/6 visual acuity by the one-month postoperative clinical assessment.

The complete absence of intraocular inflammation or sight-threatening endophthalmitis over a one-month retention period strongly suggests the physical material composition of the lodged projectile was highly inert in nature. Ultimately, the progressive mechanical disruption of the delicate lens fibers by the physical projectile initiated the delayed cataractous changes, which subsequently served as the primary mechanistic trigger for the patient's eventual visual decline.

For practicing medical professionals, the unprecedented anomaly highlights the critical necessity of mandating comprehensive ophthalmological evaluations for all ocular injuries, regardless of how trivial or uneventful the initial physical incident may appear to the affected patient. By maintaining a consistently high index of clinical suspicion and diligently searching for concealed IOFBs, modern practitioners can successfully navigate misleading asymptomatic periods and optimize long-term ocular recovery outcomes.

Reference

Mittal A, Sharma SK, Jain S. A rare case of intracapsular foreign body. Delhi J Ophthalmol 2026;36:134-6