Table 2. A—Constant before and after zeroing out the mean error for R factor and ALxK methods, when possible.
| IOL model | Manufacturer’s suggested A—constant | R factor’s modified A—constant | ALxK’s modified A—constant |
|---|---|---|---|
| Abbot AAB 00 Sensar | 118.9 | X | X |
| Alcon Acrysof MA 60 BM | 118.9 | 117.8 | 117.5 |
| Alcon Restor SA60D3 | 118.1 | X | X |
| Alcon SA60AT | 118.4 | 116.8 | 117.0 |
| Alcon SN 60 WF | 118.7 | 118.3 | 118.3 |
| AMO Sensar AR 40e | 118.4 | 116.4 | 116.2 |
| AMO Tecnis 1 ZCB00 | 118.8 | 115.0 | 116.5 |
| AMO Tecnis ZMA00 | 119.1 | X | X |
| AMO Tecnis Z9000 | 119.0 | 118.3 | 118.1 |
| B&L Akreos Adapt | 118.0 | 117.9 | 118.3 |
| B&L Akreos AO MI60 | 118.4 | X | X |
| Corneal ACR 600 SE | 120.0 | X | X |
| Corneal PHACNS 5 | 118.5 | X | X |
| Corneal Quatrix | 119.6 | X | X |
| Curamed SA 60CZ | 118.8 | 113.5 | 114.3 |
| Hexavision HQ 203 HEP | 118.2 | X | X |
| Hoya 118,5 AF1FY60AD | 118.4 | 117.2 | 118.1 |
| Hoya VA 60 BB | 118.7 | 116.1 | 115.7 |
| Soleko Fil611 | 119.0 | X | X |
| Zeiss CT Spheris 203 | 118.0 | X | X |