Research Article
In Vivo Corneal Biomechanical Properties with Corneal Visualization Scheimpflug Technology in Chinese Population
Table 1
Repeatability of the recalculated corneal visualization Scheimpflug technology parameters for three measurements
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| Parameters | Precision | Repeatability | CV% | ICC | 95% CI for ICC |
| First applanation time (msec) | 0.187 | 0.264 | 1.306 | 0.929 | 0.901~0.950 | First applanation length (mm) | 0.113 | 0.160 | 3.221 | 0.223 | 0.094~0.362 | Velocity in (m/sec) | 0.018 | 0.026 | 6.353 | 0.695 | 0.601~0.776 | Second applanation time (msec) | 0.284 | 0.401 | 0.657 | 0.929 | 0.901~0.951 | Second applanation length (mm) | 0.540 | 0.764 | 16.153 | 0.230 | 0.101~0.369 | Velocity out (m/sec) | 0.076 | 0.107 | −9.834 | 0.768 | 0.690~0.832 | Highest concavity time (msec) | 0.684 | 0.966 | 2.093 | 0.302 | 0.171~0.438 | Deformation amplitude (mm) | 0.069 | 0.098 | 3.312 | 0.942 | 0.920~0.960 | Peak distance (mm) | 0.168 | 0.238 | 1.701 | 0.896 | 0.857~0.927 | Highest concavity radius (mm) | 1.136 | 1.606 | 8.320 | 0.605 | 0.495~0.704 | Intraocular pressure (mmHg) | 1.696 | 2.397 | 6.245 | 0.894 | 0.854~0.925 | Central corneal thickness (μm) | 9.642 | 13.627 | 0.925 | 0.983 | 0.976~0.988 |
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. CV: coefficient of variation; ICC: intraclass correlation coefficient; 95% CI: 95% confidence interval of the mean.
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