Fig. 1From: Choroidal vascularity index as a biomarker of systemic inflammation in childhood Polyarteritis Nodosa and adenosine deaminase-2 deficiencyAssessment performed using enhanced depth imaging optical coherence tomography. Image showing choroidal thickness measurement shows the following: The cross-sectional image of the choroid is obtained using enhanced depth imaging scanning with optical coherence tomography. Measurements are obtained by 2 independent examiners at 5 locations using 750 μm intervals. a Measurements obtained by Examiner I. b Measurements obtained by Examiner IIBack to article page