Table 2 Summary of cut-off values for corneal shape change in keratoconic eyes based on one and of mean three repeated measurements, expressed as upper 99.73% LOAs with upper 95% CI.
From: Improving precision for detecting change in the shape of the cornea in patients with keratoconus
Device | Parameter | Cut-off for corneal shape change | |
|---|---|---|---|
1 Measurement | Mean of 3 measurements | ||
Pentacam HR | Kmax | 2.73 | 1.55 |
K1 (D) | 1.63 | 0.70 | |
K2 (D) | 1.68 | 0.75 | |
TCT (μm) | 21.97 | 12.12 | |
Orbscan IIz | K1 (D) | 6.60 | 4.72 |
K2 (D) | 9.46 | 5.79 | |
TCT (μm) | 99.30 | 62.80 | |
Casia SS-1000 | K1 (D) | 3.77 | 2.04 |
K2 (D) | 7.18 | 2.68 | |
TCT (μm) | 38.39 | 26.64 | |
