Table 3. Results of artificial neural networks reveal normalized importance values of variables for visual field defects in open-angle glaucoma patients with myopia.
| Independent variable | Importance | Normalized importance |
|---|---|---|
| Intraocular pressure, mmHg | .037 | 22.4% |
| Central corneal thickness, μm | .047 | 28.3% |
| Axial length, mm | .065 | 39.1% |
| Peripapillary RNFL thickness, μm | .155 | 93.5% |
| Disc tilt ratio | .076 | 45.7% |
| Disc torsion degree | .092 | 55.3% |
| Disc-foveal angle, degree | .125 | 75.1% |
| PPA area, pixel | .166 | 100.0% |
| Subfoveal choroidal thickness, μm | .081 | 48.7% |
| Subfoveal scleral thickness, μm | .077 | 46.5% |
RNFL = retinal nerve fiber layer; PPA = peripapillary atrophy.