2018
DOI: 10.1111/ceo.13184
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Accuracy of intraocular lens power calculation formulas in long eyes: a systematic review and meta‐analysis

Abstract: This study demonstrates the superiority of Barrett Universal II over Holladay 2, SRK/T, Hoffer Q and Holladay 1 in predicting IOL power in long eyes.

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Cited by 67 publications
(48 citation statements)
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“…The patients were further divided into six AL groups (<22, 22-24.5, 24.5-26, 26-28, 28-30, and >30 mm). Eyes with AL < 22 mm were defined as short eyes, [21][22][23] AL 22 to 24.5 mm as normal eyes, 21,22 AL 24.5 to 26 mm as moderately myopic eyes, 21,22 AL 26 to 28 mm as highly myopic eyes, 24 and AL > 28 mm as extremely myopic eyes. 24…”
Section: Biometric Measurementsmentioning
confidence: 99%
“…The patients were further divided into six AL groups (<22, 22-24.5, 24.5-26, 26-28, 28-30, and >30 mm). Eyes with AL < 22 mm were defined as short eyes, [21][22][23] AL 22 to 24.5 mm as normal eyes, 21,22 AL 24.5 to 26 mm as moderately myopic eyes, 21,22 AL 26 to 28 mm as highly myopic eyes, 24 and AL > 28 mm as extremely myopic eyes. 24…”
Section: Biometric Measurementsmentioning
confidence: 99%
“…In particular, the BUII formula may show the greatest accuracy for myopic eyes (13)(14)(15). For eyes with ALs > 24.5 mm, the BUII formula presented the highest percentage of eyes within ±0.50 D of the prediction error (PE) (82.1% on average) (16). However, the accuracy of the BUII formula decreased sharply when we included more eyes with extreme myopia (AL > 28.0 mm), as the percentage of eyes within ±0.50 D of the PE decreased to 70%, and the percentage within ±0.25 D of the PE was only 25% (17).…”
Section: Introductionmentioning
confidence: 99%
“…Among all the currently available formulas in high myopia, the benchmark is represented by the Barrett Universal II formula, which according to the literature provides the lowest average postoperative refractive error (-0.09D ± 0.42D to +0.05D ± 0.46D) and the best percentage of a postoperative refraction of ± 0.5D (77%) [8][9][10][11]. We consider that the results obtained in our series using adjustment of the axial length according to the Wang Koch method are close to the performance of the Barrett Universal II formula, which is rather modern and sophisticated but which requires technology not yet available for routine practice in developing countries.…”
Section: Discussionmentioning
confidence: 99%