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Double Iris, A case report.

Ahmed Shakir Ali Al-Wassiti1, Ali Majeed Rashed2, Mohammed Tareq Mutar1

  • 1University of Baghdad College of Medicine, Baghdad, Baghdad Governorate, Iraq.

Contact Lens & Anterior Eye : the Journal of the British Contact Lens Association
|May 9, 2025
PubMed
Summary

This report details a rare case of double iris (iridis geminus) in a 31-year-old male. The condition, affecting both eyes, was diagnosed via slit lamp examination and optical coherence tomography.

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Area of Science:

  • Ophthalmology
  • Developmental Biology

Background:

  • Iris formation is a complex process involving neural ectoderm, neural crest cells, and mesoderm.
  • Congenital iris anomalies can arise from disruptions during ocular development.

Observation:

  • A 31-year-old male presented with lifelong blurred vision in his left eye (OS).
  • Clinical examination revealed amblyopia, hypermetropia, and normal intraocular pressure in the left eye.
  • Bilateral double iris (iridis geminus) was identified during slit lamp examination.

Findings:

  • The patient exhibited bilateral double iris, a rare congenital anomaly.
  • Optical coherence tomography confirmed the presence of the double iris structure.
  • Associated findings included left eye amblyopia and hypermetropia.
Keywords:
Double IrisIrisOcular anomaly

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Implications:

  • This case highlights the importance of thorough ophthalmic examination for diagnosing rare congenital iris malformations.
  • Understanding such anomalies contributes to the knowledge of normal and abnormal iris development.
  • Further research may elucidate the specific genetic or developmental pathways involved in iridis geminus.