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Fig. 1 | BMC Ophthalmology

Fig. 1

From: Choroidal vascular changes in silicone oil-filled eyes after vitrectomy for rhegmatogenous retinal detachments

Fig. 1

The calculation of CVI using binarization of OCT images. (A) The image is binarized using Niblack’s auto local threshold. (B) The choroidal boundaries are traced, identifying the total choroidal area (indicated by red lines). (C) The color threshold tool is utilized to select the dark pixels, representing the luminal area. The CVI value is obtained by dividing the luminal area by the total choroidal area

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BMC Ophthalmology

ISSN: 1471-2415

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