Ocular siderosis caused by a subretinal iron foreign body masquerading as a blood clot: a case report
Abstract
Purpose: We report a case of ocular siderosis caused by a subretinal iron foreign body.
Observations: A 30-year-old male construction worker injured by a small piece of shrapnel while working visited an eye clinic for decreased vision in left eye on day X, and was subsequently referred to our hospital with a diagnosis of vitreous hemorrhage on day X+1. Although a penetrating foreign body was suspected, no obvious wound or intraocular foreign body was found even after the hemorrhage subsided. On X+3 months, a rhegmatogenous retinal detachment was found and a lens-sparing vitrectomy was performed. A black elevated subretinal lesion was noted intraoperatively but not removed because it was considered to be a blood clot. The postoperative course was stable with best corrected visual acuity (BCVA) recovering to 20/16. However, the BCVA decreased to 20/30 on X+11 months with the subretinal lesion turning reddish brown. The electroretinogram also showed a significant attenuation of all stimuli. Siderosis was considered to have developed due to the subretinal foreign body. On X+14 months, we performed a combined phaco-vitrectomy to remove the foreign body. Analysis revealed iron as the main component of the foreign body. However, the postoperative electroretinogram remained unchanged, and the BCVA was 20/63 without improvement.
Conclusions and importance: We experienced a case of a subretinal iron foreign body being mistaken for a blood clot. Even if the vision stays stable, ocular…
How strong is the evidence?
Evidence Hub reads this as a case report, done in people. Its evidence level is 5 of 5 (Very low · case / narrative / animal / in vitro / in silico). Case reports, narrative reviews, and animal, cell or computer-model studies give the weakest evidence for human health.
Read the paper
Related studies
- A Survey on Knowledge Graphs: Representation, Acquisition, and Applications
- Toxicity of nanomaterials
- The Human Gene Mutation Database: towards a comprehensive repository of inherited mutation data for medical research, genetic diagnosis and next-generation sequencing studies
- Halogen bonding (X‐bonding): A biological perspective
- Biofilm formation at the air–liquid interface by the Pseudomonas fluorescens SBW25 wrinkly spreader requires an acetylated form of cellulose
- Opioid Activation of Toll-Like Receptor 4 Contributes to Drug Reinforcement
Go deeper in Evidence Hub
Evidence Hub adds a study data sheet (design, sample size, evidence level, key numbers), an AI summary and a chat grounded in the paper's text.