Table 2.
Area under the Receiver Operating Characteristics (95% Confidence Interval) for Discrimination between Healthy and Glaucomatous Eyes Using Heidelberg Retina Tomograph (HRT) 3 Stereometric Parameters
| Characteristic | Numerical Output | Ordinal Output |
|---|---|---|
| HRT 3 | ||
| Linear cup/disc ratio | 0.897 (0.836–0.958) | 0.693 (0.623–0.763) |
| Cup shape measure | 0.871 (0.809–0.932) | 0.664(0.596–0.731) |
| Rim area | 0.839 (0.759–0.920) | 0.815 (0.744–0.886) |
| Rim volume | 0.825 (0.745–0.906) | 0.753 (0.677–0.828) |
| Mean RNFL thickness | 0.790 (0.702–0.877) | 0.623 (0.560–0.686) |
| Height variation contour | 0.615 (0.504–0.726) | 0.530 (0.497–0.563) |
| GPS | ||
| Horizontal RNFL curvature | 0.905 (0.844–0.966) | NA |
| GPS global | 0.899(0.837–0.961) | 0.862 (0.794–0.929) |
| Cup size | 0.768 (0.678–0.858 | NA |
| Vertical RNFL curvature | 0.731 (0.636–0.731) | NA |
| Rim steepness | 0.686 (0.586–0.786) | NA |
| Cup depth | 0.560 (0.453–0.666) | NA |
GPS = glaucoma probability score; NA = not applicable; RNFL = retinal nerve fiber layer.