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Graefe's Archive for Clinical and Experimental Ophthalmology

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01-05-2020 | Cataract | Cataract

Accuracy of 8 intraocular lens power calculation formulas in pediatric cataract patients

Authors: Pingjun Chang, Lei Lin, Zhangliang Li, Li Wang, Jinhai Huang, Yun-e Zhao

Published in: Graefe's Archive for Clinical and Experimental Ophthalmology | Issue 5/2020

Abstract

Purpose

To compare the accuracy of the eight formulas for intraocular lens (IOL) power calculation in pediatric cataract patients.

Methods

A retrospective study. A total of 68 eyes (68 patients) that underwent uneventful cataract surgery and posterior chamber IOL implantation in the capsular bag were enrolled. We compared the calculation accuracy of the 8 formulas at 1 month postoperatively and performed subgroup analysis according to age or axial length (AL).

Results

The mean age at surgery was 34.07 ± 24.60 months and mean AL was 21.12 ± 1.42 mm. The mean prediction errors (PE) of eight formulas for all patients were as follows: SRK II (− 0.66), SRK/T (− 0.44), Holladay 1 (− 0.36), Hoffer Q (− 0.09), Olsen (0.71), Barrett (0.37), Holladay 2 (− 0.70), and Haigis (0.50). There was significant difference among the 8 formulas (p < 0.0001), while no significant difference of absolute PE was found among the 8 formulas in all patients (p = 0.053). Moreover, in patients younger than 2 years old or with AL ≤ 21 mm, SRK/T formula was relatively accurate in 34% and 39% of eyes, respectively. While in patients older than 2 or with AL > 21 mm, Barrett and Haigis formulas were better (58% and 47% for Barrett, 52% and 53% for Haigis).

Conclusion

Overall, in patients younger than 2 years old or with AL ≤ 21 mm, SRK/T formulas were relatively accurate, while Barrett and Haigis formulas were better in patients older than 2 or with AL > 21 mm.

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Title: Accuracy of 8 intraocular lens power calculation formulas in pediatric cataract patients
Authors: Pingjun Chang
Lei Lin
Zhangliang Li
Li Wang
Jinhai Huang
Yun-e Zhao
Publication date: 01-05-2020
Publisher: Springer Berlin Heidelberg
Keyword: Cataract
Published in: Graefe's Archive for Clinical and Experimental Ophthalmology / Issue 5/2020
Print ISSN: 0721-832X
Electronic ISSN: 1435-702X
DOI: https://doi.org/10.1007/s00417-020-04617-8

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Accuracy of 8 intraocular lens power calculation formulas in pediatric cataract patients

Abstract

Purpose

Methods

Results

Conclusion

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Purpose

Methods

Results

Conclusion

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