Research Article
Comparison of Fourier-Domain and Time-Domain Optical Coherence Tomography in the Measurement of Thinnest Corneal Thickness in Keratoconus
Table 1
Difference and correlation analysis of the TCT from the RTVue-OCT and Visante-OCT.
| | RTVue-OCT | Visante-OCT | Difference | Correlation | ICC | | Mean | SD | 95% CI-U | 95% CI-L | Mean | SD | 95% CI-U | 95% CI-L | Mean | SD | | | | (95% LoA) |
| Normal eyes | 530.4 | 19.7 | 500.2 | 564.5 | 521.5 | 18.3 | 493.4 | 555.2 | 8.9 | 6.9 | <0.001 | 0.938 | <0.001 | 0.915 (0.906–0.952) | Keratoconus | 425.0 | 58.2 | 307.7 | 504.6 | 424.4 | 55.7 | 310.7 | 499.8 | 0.6 | 10.2 | 0.604 | 0.985 | <0.001 | 0.984 (0.976–0.990) | Subgroup 1 (keratoconus) | 469.5 | 26.5 | 433.4 | 518.6 | 466.2 | 25.9 | 430.7 | 517.3 | 3.2 | 7.7 | 0.009 | 0.957 | <0.001 | 0.950 (0.899–0.974) | Subgroup 2 (keratoconus) | 376.0 | 41.7 | 286.7 | 425.7 | 378.3 | 41.3 | 291.3 | 423.0 | −2.3 | 11.8 | 0.223 | 0.960 | <0.001 | 0.959 (0.924–0.978) |
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