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Updated: May 21, 2026
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Retinal Vascular Reactivity as Assessed by Optical Coherence Tomography Angiography
Published on: March 26, 2020
En Face Optical Coherence Tomography Imaging as a Structural Surrogate for Posterior Pole Inflammatory Retinal
Yuka Mizuno1, Sunil K Srivastava2, Gabriel Castilho S Barbosa3
1From the Uveitis Center of Excellence (Y.M., S.K.S, G.C.S.B., V.B., D.S., E.S., C.C., K.B., S.S.), Cole Eye Institute, Cleveland Clinic, Cleveland, Ohio, USA.
American Journal of Ophthalmology
|May 19, 2026
Summary
Structural en face optical coherence tomography (OCT) shows high sensitivity in detecting inflammatory retinal vascular activity in uveitis patients. While specific, it serves as a valuable noninvasive tool for identifying areas needing further evaluation.
Area of Science:
- Ophthalmology
- Medical Imaging
- Retinal Diseases
Background:
- Uveitis is an inflammatory eye condition that can affect retinal vasculature.
- Fluorescein angiography (FA) is a standard method for assessing retinal vascular inflammation.
- Noninvasive imaging techniques are sought to complement FA in uveitis evaluation.
Purpose of the Study:
- To assess the ability of structural en face optical coherence tomography (OCT) to detect structural changes linked to FA-defined inflammatory retinal vascular activity in uveitis.
- To evaluate the diagnostic performance of en face OCT for identifying active vascular inflammation at the posterior pole.
Main Methods:
- A prospective study involving 24 eyes from 12 uveitis patients.
- Simultaneous ultra-widefield FA and spectral-domain OCT imaging (12x12 mm macula-centered).
- Structural en face OCT images were generated using a specific slab and graded by two masked specialists against FA findings.
Main Results:
- Out of 53 analyzed images, 32 showed FA-defined inflammatory activity.
- En face OCT achieved a sensitivity of 0.94 and an F1 score of 0.80.
- Specificity was 0.38, indicating limitations in definitively ruling out activity, while intergrader agreement was moderate (κ=0.65).
Conclusions:
- Structural en face OCT is highly sensitive for detecting structural surrogates of FA-defined inflammatory vascular activity in the posterior pole of uveitis patients.
- Its limited specificity suggests it is best used as an adjunctive, noninvasive tool to guide further diagnostic evaluation rather than a standalone diagnostic method.
