OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY FINDINGS IN PATIENTS WITH NONOCULAR BEHÇET DISEASE

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Abstract

Purpose:

To describe the optical coherence tomography angiography findings in nonocular Behçet disease.

Methods:

The superficial capillary plexus (SCP) and deep capillary plexus (DCP) and outer retinal and choroidal flow were evaluated using optical coherence tomography angiography. Perimetry was performed to correlate any microvascular and functional changes.

Results:

Capillary nonperfusion areas were found in the superficial capillary plexus in 16/20 eyes (80%) and in the DCP in 17/20 eyes (85%). Perifoveal capillary arcade disruption and vessel rarefaction were present in both plexuses in all cases. Capillary telangiectasia was present in the superficial capillary plexus in five eyes (25%) and in the DCP in all eyes. Telangiectasia of the parafoveal capillaries was present in the DCP in all eyes. The mean area of the foveal avascular zone was not significantly different from that in 20 normal eyes (P = 0.68). However, mean and central subfield capillary density values were significantly lower (P < 0.001 and P < 0.005, respectively) in the Behçet disease group. Perimetry revealed central scotomata on the pattern deviation plot in 12 eyes (60%).

Conclusion:

Telangiectasia of the parafoveal capillaries was detected in the DCP in all cases. Microvascular changes in the superficial capillary plexus and DCP in nonocular Behçet disease can be detected by optical coherence tomography angiography.

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