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Journal of Ophthalmic Inflammation and Infection
Fig. 2 | Journal of Ophthalmic Inflammation and Infection

Fig. 2

From: Topographic correlation between multifocal electroretinography, microperimetry, and spectral-domain optical coherence tomography of the macula in patients with birdshot chorioretinopathy

Fig. 2

The correlation of spectral-domain optical coherence tomography (SD-OCT), multifocal electroretinography (mfERG) hexagons, and the microperimetry (MP). a The SD-OCT line scans intersect various hexagons of the mfERG as shown. Concentric circles with diameters of 2.3°, 6.6°, and 11.1° (representing the topographic locations of the MP test points) are also shown in red, green, and brown circles. Analysis of the retinal layers was performed at the locations where the superimposed circles intersected the line scans of the SD-OCT. Two points were selected, and their values were averaged within 17 hexagons (hexagon numbers 11 and 17 were excluded since the line scans did not intersect the circles representing the MP test points) so that a total of 34 areas were analyzed for each SD-OCT scan (b)

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