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Retinal Vascular Reactivity as Assessed by Optical Coherence Tomography Angiography

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OCT imaging of a traumatic endothelial ring.

Gerard A Reid¹, Fayyaz Musa

¹Department of Ophthalmology, Calderdale and Huddersfield NHS Foundation Trust, West Yorkshire, United Kingdom.

|July 12, 2014

Summary

A nonblast corneal injury caused a unique ring-shaped disruption of endothelial cells, visualized with corneal optical coherence tomography (OCT). The injury resolved spontaneously, demonstrating transient stromal edema.

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Area of Science:

Ophthalmology
Corneal Imaging
Traumatic Eye Injury

Background:

Corneal endothelial rings are rare, often associated with blast injuries.
Nonblast mechanisms for such injuries are less understood.
Optical coherence tomography (OCT) is a valuable tool for visualizing corneal structures.

Observation:

A 59-year-old male presented with a grey-white, annular corneal lesion after a nonpenetrating foreign body injury.
Slit-lamp examination revealed a 3.3 mm diameter endothelial ring.
Corneal OCT demonstrated stromal edema and endothelial disruption.

Findings:

The corneal OCT findings confirmed a traumatic corneal endothelial ring.
The observed pattern suggests a concussive injury mechanism.
Stromal edema was localized anterior to the disrupted endothelial cells.

Implications:

This case highlights a novel presentation of traumatic corneal injury.
Corneal OCT is effective in diagnosing and monitoring such conditions.
Findings support animal study hypotheses on injury mechanisms and sequelae.