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Radiation chorioretinopathy: unusual occurrence of intervortex venous anastomosis
  1. Pratik Kishan Lakhmawar,
  2. Anand Singh Brar and
  3. Umesh Chandra Behera
  1. Anant Bajaj Retina Institute (Vitreo-retina services), LV Prasad Eye Institute Bhubaneswar Campus, Bhubaneswar, Odisha, India
  1. Correspondence to Dr Umesh Chandra Behera; umeshcbehera{at}


A woman in her 60s presented with vision blur in both eyes, a year post-radiotherapy for oral cancer. The best corrected visual acuity was 20/40 in both eyes. Posterior segment examination was remarkable for a unilateral intervortex venous anastomosis in choroid in her right eye, on the side of her face that had received radiation. Ultra-wide field indocyanine green angiography complimented the clinical findings. We discuss the ramifications of detection of this entity and suggest non-invasive methods of detection.

  • Head and neck cancer
  • Retina
  • Macula

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  • Contributors The following authors were responsible for drafting of the text, sourcing and editing of clinical images, investigation results, drawing original diagrams and algorithms, and critical revision for important intellectual content—UCB, ASB and PKL The following author gave final approval of the manuscript—UCB.

  • Funding This study was funded by Hyderabad Eye Research Foundation (unrestricted educational grant).

  • Case reports provide a valuable learning resource for the scientific community and can indicate areas of interest for future research. They should not be used in isolation to guide treatment choices or public health policy.

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed.