Case Report


Subconjunctival deferoxamine for corneal rust deposits associated with ocular siderosis: A case report

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1 Cornea and External Diseases Department, Massachusetts Eye and Ear Infirmary, Massachusetts General Brigham Health System, Boston, MA, USA

2 Retina Department, Massachusetts Eye and Ear Infirmary, Massachusetts General Brigham Health System, Boston, MA, USA

Address correspondence to:

Emma Davies

Massachusetts Eye and Ear Infirmary, 243 Charles Street, Boston MA,

USA

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Article ID: 100039Z17RT2024

doi: 10.5348/100039Z17RT2024CR

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How to cite this article

Tandias R, Rossin E, Davies E. Subconjunctival deferoxamine for corneal rust deposits associated with ocular siderosis: A case report. J Case Rep Images Opthalmol 2024;7(1):1–4.

ABSTRACT


Introduction: Ocular siderosis is a vision-threatening condition resulting from intraocular iron toxicity. This case re-establishes a role for subconjunctival deferoxamine, a chelating agent uncommonly used in ophthalmology, as an adjunctive treatment for ocular siderosis.

Case Report: A 37-year-old healthy male presented two months after an injury at work with intermittent pain and blurry vision in the right eye. Presenting visual acuity (VA) was 20/100 in the right eye. With delayed presentation, the patient already had ocular siderosis with corneal rust deposits and retinal damage. The patient underwent pars plana vitrectomy (PPV) with surgical view impaired by corneal deposits and intraocular metallic intraocular foreign body (IOFB) that disintegrated upon attempted removal. At six months postoperatively, VA was 20/70 in the right eye, and examination revealed worsened diffuse, pigmented subepithelial deposits in the central cornea, iris atrophy, cotton wool spots, optic nerve pallor, and a residual IOFB in the anterior vitreous, consistent with worsened ocular siderosis. Superficial keratectomy was performed in combination with repeat PPV to improve surgical visualization and aid in IOFB removal. An amniotic membrane was placed and a subconjunctival injection of deferoxamine was administered. The cornea was well-healed with significantly improved siderosis and no epithelial defects on 2-week postoperative follow-up. Visual acuity was 20/60 at last follow-up two months postoperatively after second surgery.

Conclusion: In treating ocular siderosis, subconjunctival injection of deferoxamine can be a useful addition to surgical IOFB removal to prevent the accumulation of iron deposits in the anterior segment of the eye.

Keywords: Deferoxamine, Intraocular foreign body, Ocular siderosis

SUPPORTING INFORMATION


Author Contributions

Rachel Tandias - Acquisition of data, Analysis of data, Interpretation of data, Drafting the article, Revising it critically for important intellectual content, Final approval of the version to be published

Elizabeth Rossin - Acquisition of data, Analysis of data, Interpretation of data, Drafting the article, Revising it critically for important intellectual content, Final approval of the version to be published

Emma Davies - Substantial contributions to conception and design, Acquisition of data, Analysis of data, Interpretation of data, Drafting the article, Revising it critically for important intellectual content, Final approval of the version to be published

Guaranter of Submission

The corresponding author is the guarantor of submission.

Source of Support

None

Consent Statement

Written informed consent was obtained from the patient for publication of this article.

Data Availability

All relevant data are within the paper and its Supporting Information files.

Conflict of Interest

Authors declare no conflict of interest.

Copyright

© 2024 Rachel Tandias et al. This article is distributed under the terms of Creative Commons Attribution License which permits unrestricted use, distribution and reproduction in any medium provided the original author(s) and original publisher are properly credited. Please see the copyright policy on the journal website for more information.