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Fig. 3 | Eye and Vision

Fig. 3

From: Assessing progression limits in different grades of keratoconus from a novel perspective: precision of measurements of the corneal epithelium

Fig. 3

TRT values for reproducibility at different stages of keratoconus. TRT, test-retest repeatability (2.77 Sw); CET, central epithelium thickness; TET, thinnest epithelium thickness; S1 (S3), corneal apex superior 1 mm (3 mm); I1 (I3), corneal apex inferior at 1 mm (3 mm); N1 (N3), corneal apex nasal at 1 mm (3 mm); T1 (T3), corneal apex temporal at 1 mm (3 mm)

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