Table 1.
Characteristics of study participants
| Study | Year | Country | Study design | Number of eyes | Age (years±SD) | Axial length, mm±SD (Range) | Method of calculating RPE | Lens Constant Used |
|---|---|---|---|---|---|---|---|---|
| Aristodemou et al.[15] | 2011 | United Kingdom | Retrospective | 608 | NA | 21.57 (20.00-21.99) | Postop SE-PR | Optimized constants |
| Cooke and Cooke[23] | 2016 | USA | Retrospective | 41 | NA | 21.69 (20.84-22.00) | Postop SE-PR | Optimized constants |
| Darcy et al.[25] | 2020 | UK | Retrospective | 766 | NA | ≤ 22 | Postop SE-PR | Optimized constants For Haigis a0- optimized, a1, a2- ULIB |
| Day et al.[17] | 2012 | UK | Retrospective | 163 | 57±10 | 21.2±0.60 (19.23-21.98) | Postop SE-PR | Optimized constants |
| Eom et al.[18] | 2014 | South Korea | Retrospective cross-sectional | 75 | 70.1±6.8 | 21.69±0.29 (20.32-21.99) | Postop SE-PR | Optimized constants |
| Gavin and Hammond[16] | 2008 | UK | Retrospectively Prospective | 41 | NA | 21.51 (20.29-21.96) | PR-Postop SE | Manufacturer’s constants |
| Gökce et al.[19] | 2017 | USA | Retrospective case series | 86 | 72±8 | 21.53±0.56 (18.80-22.00) | Postop SE-PR | Optimized constants |
| Kane et al.[5] | 2016 | Australia | Retrospective case series | 156 | NA | ≤22 | Postop SE-PR | Optimized constants |
| Kane et al.[26] | 2017 | Australia | Retrospective case series | 137 | NA | ≤22 | Postop SE-PR | Optimized constants |
| Khatib et al.[21] | 2021 | India | Retrospective observational | 66 | NA | Postop SE-PR | Optimized constants | |
| Shrivastava et al.[20] | 2018 | India | Retrospective observational | 50 | 58.54±10.36 | 21.61±0.27 (20.76-21.96) | Postop SE-PR | Optimized constants |
| Srivannaboon et al.[22] | 2013 | Thailand | Prospective comparative | 15 | NA | 21.44 (18.77-21.94) | Postop SE-PR | ULIB constants |
| Terzi et al.[27] | 2009 | Germany | Retrospective | 19 | 53±7 | 21.24±0.55 (20.13-21.97) | PR-Postop SE | Optimized constants |
| Wang et al.[6] | 2013 | China | Retrospective | 33 | NA | 21.52±0.47 | Postop SE-PR | Optimized constants |
| Zhao et al.[13] | 2018 | China | Retrospective | 139 | NA | <21 | PR-Postop SE | ULIB constants |
|
| ||||||||
| Study | Version of biometer | Method of K measurement | Follow-up | Refraction | IOL implanted | Formulae used | ||
|
| ||||||||
| Aristodemou et al.[15] | NA | IOLMaster | 1 month | Subjective | Sofport IOL and Akreos Fit IOL | Hoffer Q, Holladay 1, SRK/T | ||
| Cooke and Cooke[23] | Lenstar LS 900 (Version 3.02) and IOLMaster (Version 5.4) | Optical biometer (both OLCR and PCI) | 3 weeks to 3 months | Subjective | AcrysofSN60WF | Barrett Universal II, Haigis, Hoffer Q, Holladay 1, Holladay 2No Ref, Holladay 2Pre surg Ref, Olsenstandalone, OlsenOLCR SRK-T, Super Formula, T2 | ||
| Darcy et al. | IOLMaster (Carl Zeiss, Meditec, AG) | IOLMaster | NA | Subjective | SA60AT, Superflex Aspheric920 H, C-Flex Aspheric970C, AkreosAdaptAO | Barrett Universal II, Haigis, Hill-RBF, Hoffer Q, Holladay1, Holladay 2, Kane, Olsen, SRK/T | ||
| Day et al.[17] | IOLMaster (Carl Zeiss, Meditec, Inc, Dublin, CA, USA) | IOLMaster | 2-17.7 weeks | Autorefraction (Topcon KR8000 series autorefractor) Topcon, Rotterdam, The Netherlands | Akreos AO, Akreos Adapt, Corneal ACR6D, OculentisLentis L302-1 | Haigis, Hoffer Q, Holladay1, SRK/T | ||
| Eom et al.[18] | IOLMaster (Version 5.02) | IOLMaster | 3-10 weeks | Autorefractor/Keratometer (RK-F1; Canon, Tokyo, Japan) | Alcon Acrysof IQ | Haigis, Hoffer Q | ||
| Gavin and Hammond[16] | IOLMaster (Zeiss-Humphrey systems) | IOLMaster | 2-3 weeks | Autorefractometer (Canon AR-2, Canon, Tokyo) | AllerganMA60 | Hoffer Q, SRK/T | ||
| Gökce et al.[19] | Lenstar LS900 (Version V 4.1.1, Haag Streit AG) | Lenstar | >3 weeks | Subjective | Alcon Acrysof SN60WF, SN6AT, SA60AT, Tecnis, ZCBOO, ZCT | Barrett Universal II, Haigis, Hill-RBF, Hoffer Q, Holladay 1, Holladay 2, and Olsen | ||
| Kane et al.[5] | IOLMaster (Version 5.4, Carl Zeiss, Meditec, AG) | IOLMaster | 2 weeks | Subjective | AcrysofIQSN60WF | Barrett Universal II, Haigis, Hoffer Q, Holladay1, Holladay 2, SRK/T, T2 | ||
| Kane et al. | IOLMaster (Version 5.4, Carl Zeiss, Meditec, AG) | IOLMaster | 2 weeks | Subjective | Acrysof IQ SN60WF | Barrett Universal II, Full Monte method, Hill- RBF, Holladay 1, Ladas Super formula | ||
| Khatib et al.[21] | Lenstar LS 900 | Lenstar | 2 weeks | Subjective | Acrysof IQ SN60WF, Tecnis ZCB00 | Barrett Universal II, EVO, Hill-RBF | ||
| Shrivastava et al.[20] | IOLMaster 500 (Version 5.4, Carl Zeiss, Meditec, AG) | IOLMaster | 1 month | Autorefractometer (Accuref K-900/R-800, Rexxam Co. Ltd.) | Acrysof SN6CWS | Barrett Universal II, Haigis, Hill- RBF, Hoffer Q, Holladay 2, SRK/T | ||
| Srivannaboon et al.[22] | IOLMaster (Carl Zeiss, Meditec, Jena, Germany) | IOLMaster | 3 months | Subjective | Hoya PY60AD | Haigis, Hoffer Q, Holladay 2 with LT, Holladay 2 without LT | ||
| Terzi et al. | IOLMaster (Carl Zeiss, Meditec, AG) | AL by PCI, Keratometry not clear | 1 month | Subjective | Acrysof SA60AT, Sensar AR40e | Haigis, Hoffer Q, Holladay 2, SRK/T | ||
| Wang et al.[6] | IOLMaster (Carl Zeiss, Jena, Germany) | IOLMaster | 3 months | Autorefractometer (Topcon AR, Tokyo, Japan) | Acrysof SA60AT | Haigis, Hoffer Q, Holladay 1, SRK/T | ||
| Zhao et al.[13] | Zeiss IOLMaster (Version 4.02) | AL- IOLMaster, Manual keratometry | 1-3 months | Subjective | AA4203 | Haigis, Hoffer Q, Holladay 1, Holladay 2, SRK/T | ||
Postop SE=postoperative spherical equivalent; PR=predicted refraction; ULIB=User Group for Laser Interference Biometry; AL=axial length; OLCR=optical low-coherence reflectometry; PCI=partial coherence interferometry