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Fig. 2 | BMC Ophthalmology

Fig. 2

From: Detailed corneal and genetic characteristics of a pediatric patient with macular corneal dystrophy - case report

Fig. 2

Swept source OCT (SS OCT) corneal map mode results (16 radial B-scans with 800 A scans per line sampling, total scan duration 0.3 s, diameter 16 mm, and scan depth 11 mm) showing the summary of the keratometric, posterior and real keratometry data. Elevation anterior and posterior, real axial power and pachymetry maps of (a) the right eye and (b) the left eye.Pachymetry map revealed bilateral, general corneal thinning. The location of the thinnest corneal point was the inferotemporal region in both eyes. The keratometric map confirms the presence of with-the-rule astigmatism. The corneal shape was characterized as prolate, both of the anterior and posterior surfaces. Anterior and posterior elevation maps showed a typical pattern in which the apex demonstrated warm colors above the best fit sphere (BFS) (RE: 7 μm, 5 μm; LE: 9 μm, 4 μm, respectively) with a slightly elevated isthmus that joined the central cornea from the temporal periphery. Right-left mirror symmetry was present. The Ectasia Screening Index (ESI), which is a parameter used in the detection of corneas with ectasia patterns implemented in SS OCT software, was 0 % in both eyes

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