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Br J Ophthalmol 85:56-62 doi:10.1136/bjo.85.1.56
  • Original Article
    • Clinical science

Slope analysis of the optic disc in eyes with ocular hypertension and early normal tension glaucoma by confocal scanning laser ophthalmoscope

Table 5

Statistical differences in the optic disc parameters evaluated by the Fisher's protected least significant difference procedure

Control/ OHND Control/ OHD Control/ NTD OHND/ OHD OHND/ NTD OHD/ NTD
Total contour area 0.280 0.045 0.016 0.392 0.136 0.406
Neuroretinal rim area 0.821 0.211 0.035 0.302 0.052 0.244
Effective area 0.091 0.0003 <0.0001 0.052 0.002 0.102
Half depth area 0.264 0.0023 <0.0001 0.049 <0.0001 0.006
C/D ratio 0.124 <0.0001 <0.0001 0.013 0.0002 0.019
Mean contour depth 0.330 0.002 <0.0001 0.027 0.0003 0.047
Volume below 0.119 0.0007 <0.0001 0.070 0.0007 0.040
Maximum depth 0.265 0.142 0.033 0.801 0.269 0.328
Half depth volume 0.396 0.0063 <0.0001 0.049 0.0005 0.036
Average depth 0.995 0.992 0.106 0.998 0.100 0.072
Contour variation 0.350 0.278 0.935 0.954 0.315 0.245
Contour tilt 0.089 0.530 0.147 0.197 0.844 0.308

  • ↵p<0.05;

  • ↵p<0.001.

  • C/D ratio = cup to disc ratio; OHND = ocular hypertension without glaucomatous disc change; OHD = ocular hypertension with glaucomatous disc change; NTD = normal tension with glaucomatous disc change.

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