Accuracy of Intraocular Lens Power Formulas Involving 148 Eyes with Long Axial Lengths: A Retrospective Chart-Review Study

Joint Authors

Xu, Xun
Chen, Chong
Xu, Xian
Miao, Yuyu
Zheng, Gaoxin
Sun, Yong

Source

Journal of Ophthalmology

Issue

Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-7, 7 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2015-12-17

Country of Publication

Egypt

No. of Pages

7

Main Subjects

Medicine

Abstract EN

Purpose.

This study aims to compare the accuracy of intraocular lens power calculation formulas in eyes with long axial lengths from Chinese patients subjected to cataract surgery.

Methods.

A total of 148 eyes with an axial length of >26 mm from 148 patients who underwent phacoemulsification with intraocular lens implantation were included.

The Haigis, Hoffer Q, Holladay 1, and SRK/T formulas were used to calculate the refractive power of the intraocular lenses and the postoperative estimated power.

Results.

Overall, the Haigis formula achieved the lowest level of median absolute error 1.025 D (P<0.01 for Haigis versus each of the other formulas), followed by SRK/T formula (1.040 D).

All formulas were least accurate when eyes were with axial length of >33 mm, and median absolute errors were significantly higher for those eyes than eyes with axial length = 26.01–30.00 mm.

Absolute error was correlated with axial length for the SRK/T (r=0.212, P=0.010) and Hoffer Q (r=0.223, P=0.007) formulas.

For axial lengths > 33 mm, eyes exhibited a postoperative hyperopic refractive error.

Conclusions.

The Haigis and SRK/T formulas may be more suitable for calculating intraocular lens power for eyes with axial lengths ranging from 26 to 33 mm.

And for axial length over 33 mm, the Haigis formula could be more accurate.

American Psychological Association (APA)

Chen, Chong& Xu, Xian& Miao, Yuyu& Zheng, Gaoxin& Sun, Yong& Xu, Xun. 2015. Accuracy of Intraocular Lens Power Formulas Involving 148 Eyes with Long Axial Lengths: A Retrospective Chart-Review Study. Journal of Ophthalmology،Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1069903

Modern Language Association (MLA)

Chen, Chong…[et al.]. Accuracy of Intraocular Lens Power Formulas Involving 148 Eyes with Long Axial Lengths: A Retrospective Chart-Review Study. Journal of Ophthalmology No. 2015 (2015), pp.1-7.
https://search.emarefa.net/detail/BIM-1069903

American Medical Association (AMA)

Chen, Chong& Xu, Xian& Miao, Yuyu& Zheng, Gaoxin& Sun, Yong& Xu, Xun. Accuracy of Intraocular Lens Power Formulas Involving 148 Eyes with Long Axial Lengths: A Retrospective Chart-Review Study. Journal of Ophthalmology. 2015. Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1069903

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-1069903