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KRYS vs SEIKO
Equivalences between the KRYS and SEIKO progressive lens tiers.
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| Surfacing | Tier | KRYS | SEIKO |
|---|---|---|---|
| CODIR (HOYA) | SEIKO | ||
| Traditionnel | 1 | kalysté basic | wingsynergie |
| Traditionnel | 2 | kalysté hd | Vision x |
| DIGITAL | 3 | Varifocus | synergy x |
| DIGITAL | 4 | — | synergy xtra |
| FREEFORM | 5 | kalysté full hd | emblem |
| FREEFORM | 6 | — | emblem xtrawidesuperior |
| FREEFORM | 7 | kalysté full hd indiv | superior xcelprime x |
| individualisé | 8 | — | prime xceed |
| individualisé | 9 | — | — |