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Bland–Altman plots showing agreement between Pentacam and Casia pachymetry measurements in five different corneal zones for the study group. (a) Central corneal thickness (bias = −4.37 ± 4.29); (b) superior corneal zone (bias = −9.66 ± 8.49); (c) inferior corneal zone (bias = −11.61 ± 9.29); (d) temporal corneal zone (bias = −13.18 ± 14.3); (e) nasal corneal zone (bias = −10.52 ± 9.73).
