| ZEISS CONTACT DAY 30 AIR Spheric | ZEISS CONTACT DAY 30 AIR 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, ZEISS compatic toric fit tendencially smaller, ZEISS air toric fit tendencially bigger) |
| BC flac corneal meridian > 8.0 // BC = 8.8 flac corneal meridian< 8.0 // BC = 8.5 |
BC add 0.7 mm to flac corneal meridian (variation of +/-0.3 mm possible) |
| D sphere +1/2 cylinder calculate to vertex distance = 0 |
D sphere +1/2 cylinder calculate both main meridians to vertex distance=0 |
