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Table 2 Intraocular lens calculation formula constants of different intraocular lens

From: Comparison of the accuracy of three intraocular lens power calculation formulas in cataract patients with prior radial keratotomy

Formula and constants

Tecnis ZMA00

CROMA QUATRIX

HOYA iSert 251

Symfony ZXR00

Barrett True-K: LF

2.15

2.2

1.62

2.09

Haigis: a0

− 1.750

1.91

− 0.542

− 0.1886

Haigis: a1

0.242

0.4

0.161

0.1716

Haigis: a2

0.266

0.1

0.204

0.1977

Holladay 1 (D–K): SF

2.06

2.28

1.52

1.96

  1. Holladay 1 (D–K) Holladay 1 (Double-K)
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European Journal of Medical Research

ISSN: 2047-783X

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