Rinsho Ganka Volume 44, Issue 4 (April 1990)

A case of elevated ferrous content in the extracted lens nucleus Muneaki Matsumoto 1 , Kunihiko Shiraki 1 , Tokuhiko Miki 1 1Dept of Ophthalmol, Osaka City Univ, Med Sch pp.465-467
Published Date 1990/4/15
DOI https://doi.org/10.11477/mf.1410900108
  • Abstract
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A 38-year-old male presented with mature cata-ract in his right eye. After uneventful extracapsular cataract extraction, we detected clinical findings suggestive of ocular siderosis through funduscopy, fluorescein angiography, perimetry and eletro-physiological examinations. While there was no evidence of intraocular foreign body through diag-nostic imaging procedures, we quantitated the con-tent of iron by atomic absorption spectro-photometry in the extracted lens nucleus and in 15 lens nuclei in senile cataract. We also quantitated the content of zinc and calculated the Fe/Zn ratio, as the wet weight of the lens nucleus might have changed during preservation. The Fe/Zn ratio was 3.2 in this patient and 0.48+0.17 in the control. We thus established the diagnosis of ocular siderosis. By further inquiry, the patient recalled an episode of perforating ocular injury 25 years before.

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44巻4号 (1990年4月)
電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院