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| Formula constant | Manufacturer constant | Equivalent formula constant | |
|---|---|---|---|
| SN60WF IOL | |||
| Holladay I | SF | 1.73 | 1.36 |
| Holladay II | ACD | 5.49 | 5.11 |
| Hoffer Q | ACD | 5.49 | 5.11 |
| SRK/T | A Constant | 118.89 | 118.24 |
| SN60AT IOL | |||
| Holladay I | SF | 1.45 | 1.41 |
| Holladay II | ACD | 5.20 | 5.10 |
| Hoffer Q | ACD | 5.20 | 5.06 |
| SRK/T | A Constant | 118.4 | 118.6 |
