Table 3

Means (SD) of stereometric variables

Nerve head measurementHRT variableOcular
hypertensive
Glaucoma
normal field
Glaucoma
field loss
Mean (SD)Mean (SD)Mean (SD)
Disc size Disc area (mm2)2.1057  (0.3515)2.2276  (0.3169)2.0454  (0.4087)
Mean radius (mm)0.8122 (0.0654)0.8354 (0.0596)0.7982 (0.0834)
Cup areaEffective area (mm2)1.2324 (0.3995)1.4470 (0.3690)1.3862 (0.5540)
Area below reference (mm2)0.5254 (0.3501)0.8423 (0.3787)0.9834 (0.4583)
Cup volumeVolume below surface (mm3)0.2802 (0.1617)0.4386 (0.2575)0.4514 (0.2744)
Volume below reference (mm3)0.1335 (0.1164)0.2597 (0.2301)0.2829 (0.1939)
Rim volumeVolume above surface (mm3)0.0546 (0.0408)0.0681 (0.0573)0.0801 (0.0791)
Volume above reference (mm3)0.4270 (0.1916)0.3266 (0.1150)0.2374 (0.0806)
Cup depthEffective mean depth (mm)0.2135 (0.0722)0.2862 (0.1285)0.2905 (0.1117)
Maximum depth in contour (mm)0.6724 (0.1609)0.7369 (0.2733)0.6715 (0.1983)
Mean depth in contour (mm)0.1326 (0.0676)0.1924 (0.1046)0.2036 (0.1070)
Nerve fibre layer height Mean height contour (mm)0.0738 (0.0563)0.1238 (0.0584)0.1643 (0.0613)
Height variation contour (mm)0.3711 (0.0972)0.4024 (0.1514)0.4096 (0.1433)
Cup shapeThird moment in contour−0.2576 (0.0620)−0.1512 (0.0753)−0.0973 (0.0821)