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Related Experiment Video

Updated: Sep 22, 2025

Partial Optic Nerve Transection in Rats: A Model Established with a New Operative Approach to Assess Secondary Degeneration of Retinal Ganglion Cells
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Dual ophthalmic arteries: a new case.

Hilal Akdemir Aktaş1, Sinan Balcı2, İlkan Tatar1

  • 1Faculty of Medicine, Department of Anatomy, Hacettepe University, 06100, Ankara, Turkey.

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|May 22, 2022
PubMed
Summary

This study details a rare case of dual ophthalmic arteries in a retinoblastoma patient, originating from the internal carotid artery and fusing within the orbit. This anatomical variation impacts treatment decisions for intraarterial chemotherapy.

Keywords:
AnastomosisDouble ophthalmic arteryDual ophthalmic arteryIntraarterial chemotherapyRetinoblastomaSuperselective angiography

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Area of Science:

  • Ophthalmology
  • Vascular Anatomy
  • Interventional Radiology

Background:

  • Retinoblastoma treatment often involves intraarterial chemotherapy.
  • Understanding orbital vascular anatomy is crucial for successful treatment delivery.
  • Variations in the ophthalmic artery can affect treatment strategies.

Observation:

  • A unique case of dual ophthalmic arteries originating from the internal carotid artery was identified in a retinoblastoma patient.
  • The larger caudal ophthalmic artery arose from the cavernous internal carotid artery, while the smaller cranial artery originated from the supraclinoid segment.
  • Superselective ophthalmic angiography revealed a fusion (anastomosis) between these dual arteries within the orbit.

Findings:

  • This is the first reported case of dual ophthalmic arteries with distinct cavernous and supracavernous origins that fuse within the orbit.
  • The central retinal artery originated from the cranial of the two ophthalmic arteries.
  • The presence and nature of anastomosis between dual ophthalmic arteries were confirmed via superselective angiography.

Implications:

  • Accurate pre-treatment angiographic analysis of orbital vasculature is essential for retinoblastoma patients.
  • Identifying dual ophthalmic arteries and their anastomosis is critical for selecting the appropriate artery for intraarterial chemotherapy.
  • This knowledge can help prevent complications during intraarterial treatment of retinoblastoma.