Research Article
Influence of Disc Size on the Diagnostic Accuracy of Cirrus Spectral-Domain Optical Coherence Tomography in Glaucoma
Table 2
Sensitivity at fixed specificity of optic nerve head measured by Cirrus HD-OCT in control and in glaucoma.
| | All discs | Small discs | Large discs | | Sensitivity at specificity > 90% | Cutoff | Sensitivity at specificity > 90% | Cutoff | Sensitivity at specificity > 90% | Cutoff | Sensitivity CoV (%) |
| Rim area | 0.92 | 0.96 | 0.88 | 0.88 | 0.92 | 0.96 | 2.8 | Average C/D | 0.68 | 0.74 | 0.71 | 0.69 | 0.76 | 0.76 | 4.9 | Vertical C/D | 0.83 | 0.71 | 0.76 | 0.71 | 0.89 | 0.78 | 10.9 | Cup volume | 0.37 | 0.45 | 0.5 | 0.33 | 0.24 | 0.73 | 48.9 |
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CoV: coefficient of variation of sensitivity across small and large disc groups; : mm 2; : mm 3. |