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Review
. 2017 Jul 11;17(1):122.
doi: 10.1186/s12886-017-0516-1.

Calculation of iris-claw IOL power for correction of late in-the-bag IOL complex dislocation

Valentín Huerva  1   2 , Francisco J Ascaso  3   4 , Isabel Caral  5   6 , Andrzej Grzybowski  7   8
Affiliations
Review

Calculation of iris-claw IOL power for correction of late in-the-bag IOL complex dislocation

Valentín Huerva et al. BMC Ophthalmol. .

Abstract

Background: To assess the constants and formula for aphakia correction with iris-claw IOLs to achieve the best refractive status in cases of late in-the-bag IOL complex dislocation.

Methods: A literature search was performed. The following data were obtained: Iris-claw IOL model, Iridal or retroiridal enclavation, A-constant, ultrasound or optical biometry, formula employed and refractive outcomes. Acceptable emmetropia was considered if the resulting spherical equivalent (SE) was within ±1.00 D.

Results: The majority of the studies used SRK/T formula (66.6%). The 88.9% of the reports obtained a SE within ±1.00 D. Using A-115 for ultrasound biometry and A-115.7 for optical biometry and SRK/T formula, the emmetropia (±1.00 D) of SE, was able to get near 100% of reported cases over the pupil implantation. However, the emmetropia decreased to 80% when the enclavation is retropupilar using the same formula. The A-constant can vary from 116.7 to 117.5 for retropupilar enclavation.

Conclusions: Using A-115 for ultrasound biometry and A-115.7 for optical biometry and SRK/T formula, ±1.00 D of SE, is able to get near 100% of cases. Nevertheless, ±1.00 D of SE decreased to 80% of the cases when the enclavation is retropupilar.

Keywords: Artisan aphakia; IOL-in-the bag dislocation; Iris-claw IOL; Late cataract surgery complication; Verysise.

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Not applicable. The report is a review.

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Not applicable.

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The authors declare that they have no competing interest in any material or IOls reported in the study.

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