| ZEISS CONTACT DAY 30 Spheric | ZEISS CONTACT DAY 30 Toric |
|---|---|
| DIA corneal diametre +2.0 mm (variation of 0.5 mm possible) |
DIA corneal diametre +2.5 mm (variation of 0.5 mm possible) |
| BC flac corneal meridian > 8.00 // BC = 8.8/8.9, flac corneal meridian < 8.00 // BC = 8.6 |
BC add 0.7 mm to flat corneal meridian (variation of +/-0.3 mm possible) |
| D sphere +1/2 cylinder calculate both main meridians to vertex distance = 0 |
D sphere +1/2 cylinder calculate both main meridians to vertext distance = 0 |
