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. Author manuscript; available in PMC: 2023 May 1.
Published in final edited form as: Ophthalmol Retina. 2022 Jan 31;6(5):387–397. doi: 10.1016/j.oret.2022.01.011

Figure 4.

Figure 4.

A case with a donut lesion that was missed by two graders. A) Swept-source OCT (SS-OCT) en face structural image containing persistent choroidal hyper-transmission defects (hyperTDs). B, D–I) The same en face structural image shown in (A) with color-coded horizontal lines that correspond to the colored borders of the B-scans used by the graders to assess whether the region on the en face image corresponded to a true hyperTD. C) Structural en face image with the red circles identifying the hyperTDs. The lesion that the yellow arrow is pointing to represents the hyperTD that two graders failed to correctly identify. As shown in the en face structural image with the red circles, the donut lesion has a greatest linear dimension (GLD) > 250 μm along the diagonal dimension. However, on the respective B-scans, GLD of the horizontal hyperTDs are all < 250 μm.