Related Experiment Video
Updated: Jul 19, 2026
07:23
Retinal Vascular Reactivity as Assessed by Optical Coherence Tomography Angiography
Published on: March 26, 2020
[Optical coherence tomography in central retinal artery occlusion]
A Salinas-Alamán1, A García-Layana, H Heras-Mulero
1Departamento de Oftalmología, Clínica Universitaria de Navarra, Universidad de Navarra, Avenida Pio XII 36, 31080 Pamplona, Navarre, Spain. salinas@unav.es
Archivos De La Sociedad Espanola De Oftalmologia
|October 4, 2006
Summary
Optical coherence tomography (OCT) can diagnose central retinal artery occlusion (CRAO) even when ophthalmoscopic signs are unclear. A persistent hyporeflective band on OCT aids in diagnosing CRAO episodes.
Area of Science:
- Ophthalmology
- Medical Imaging
Background:
- Central retinal artery occlusion (CRAO) presents diagnostic challenges, particularly when ophthalmoscopic signs are equivocal.
- Optical coherence tomography (OCT) is a key imaging modality in retinal diagnostics.
Observation:
- Three cases of CRAO were examined using OCT.
- Ophthalmoscopic examination revealed equivocal signs of CRAO in all three cases.
Findings:
- OCT imaging clearly identified a hyporeflective signal in all affected eyes.
- A distinct hyporeflective band was observed between the neurosensory retina and retinal pigment epithelium.
Implications:
- This hyporeflective band on OCT is a persistent indicator, lasting months post-CRAO.
- OCT findings are crucial for establishing a definitive CRAO diagnosis in ambiguous clinical presentations.
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