Paediatric intraocular lens implants: accuracy of lens power calculations

O’Gallagher, Michael; Lagan, Maeve; Mulholland, Conor; Parker, Michael; McGinnity, Gerard; McLoone, Eibhlin

doi:10.1038/eye.2016.163

Cited by 19 publications

(27 citation statements)

References 25 publications

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“…SE was more myopic in children who were treated using the SRK II formula than the SRK/T formula (SE −4.06 D vs −0.21 D, p < 0.001) at the last follow-up time. These results are in accordance with O’Gallagher et al [ 28 ]. It suggests that with the ELP calculation and the new formula, it is possible to perform an adequate predictive refraction in secondary IOL implantation in the ciliary sulcus of young children.…”

Section: Discussionsupporting

confidence: 93%

Long-term results of secondary intraocular lens implantation in children under 30 months of age

Koch

Kara-Júnior

Serra

et al. 2018

Eye

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PurposeTo report the long-term outcome of early secondary intraocular lens (IOL) implantation following congenital cataract extraction in a large number of eyes.MethodsData of aphakic children under 30 months of age who underwent secondary IOL implantation and had at least one year of follow-up after the surgery was reviewed. In all of the patients, a foldable three-piece acrylic IOL was implanted in the ciliary sulcus by the same surgeon using the same technique. The database studied included refractive and visual acuity (VA) outcomes and complications.ResultsFifty patients (75 eyes) were included. The average age at the time of cataract extraction was 94.20 ± 44.94 days and 20.7 ± 6.0 months in the secondary IOL implantation. After 82.32 ± 48.91 months, the VA was 0.58 ± 0.35 LogMAR and the spherical equivalent was −2.20 ± 4.19 D. There was a negative correlation between a longer follow-up period and myopia at the SE measured (P = .001). The most frequent complications included glaucoma and corectopia. Performing the secondary IOL implantation ≤ 20 months of age was not a risk factor for glaucoma development (P = 0.095).ConclusionSecondary IOL implantation under 30 months of age is an option for children with unsatisfactory management of the optic treatment. A predictable IOL power calculation and satisfactory visual outcomes compared to results of later secondary IOL implantation are possible.

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Section: Discussionsupporting

confidence: 93%

Long-term results of secondary intraocular lens implantation in children under 30 months of age

Koch

Kara-Júnior

Serra

et al. 2018

Eye

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“…Eibschitz et al [ 20 ] conducted a spreadsheet program with AL (16 to 28 mm) and K (40 to 55 D) as input parameters to predict IOL power and reported that the Holladay 1 and Haigis formulas were highly accurate with similar performance in IOL prediction. O'Gallagher et al [ 21 ] enrolled 46 patients (67 eyes) undergone surgery younger than eight (mean 3.8 years) and analyzed the Hoffer Q, Holladay 1, SRK II, and SRK/T formulas prediction, and their results indicated that the SRK/T formula was the most accurate formula.…”

Section: Discussionmentioning

confidence: 99%

Comparison of the Accuracy of IOL Power Calculation Formulas for Pediatric Eyes in Children of Different Ages

Kou

Leng

et al. 2020

Journal of Ophthalmology

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Purpose. This study aims to compare the accuracy of five intraocular lens (IOL) power calculation formulas (SRK/T, Hoffer Q, Holladay 1, Haigis, and Holladay 2) for pediatric eyes in children of different ages. Methods. In this prospective study, patients who received cataract surgery and IOL implantation in the capsular bag were enrolled. We compared the calculation accuracy of 5 formulas at 1 month postoperatively and performed subgroup analysis with the patients divided into three groups according to their ages at the time of surgery as follows: group 1 (age ≤ 2 years, 35 eyes), group 2 (2 years < age < 5 years, 38 eyes), and group 3 (age > 5 years, 29 eyes). Results. 75 patients (102 eyes) were enrolled in this study. The Haigis formula got the smallest PE among all formulas in all three groups. With regard to APE, there were no statistical differences among the formulas except group 2, with the SRK/T formula a little smaller, the Holladay 2 formula a little larger in group 1, and the Haigis formula a little smaller in group 3. In group 2, the Haigis formula had the lowest APE (0.87 ± 0.61 D), while the Holladay 2 formula had the largest (1.71 ± 1.20 D, p<0.001), followed by the Holladay 1 formula (1.51 ± 1.07 D, p=0.002). On comparing the percentage of APE within 0.5 D and 1.0 D obtained with 5 formulas in each group, there were no statistical differences. The SRK/T formula and the Holladay 1 formula showed the highest percentage (40.00% and 60.00%) in group 1. While the Haigis formula got the highest percentage in less than 0.5 D (34.21%) and less than 1 D (60.53%) in group 2. In group 3, the Holladay 2 formula and the Haigis formula got the highest percentage less than 0.5 D (58.62%) and less than 1 D (79.31%). The multiple linear regression indicated that the age at the time of surgery was a significant factor affecting the accuracy of APE; after removing the age, AL was the only factor that affected the accuracy of APE. Conclusion. The SRK/T and the Holladay 1 formulas were relatively accurate in patients younger than 2 years old, while the Haigis formula performed better in patients older than 2.

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“…If the initial target is not achieved, then the outcome of future refraction in children becomes even more unpredictable. Previous studies have failed to establish a consensus on the formula that best predicts early postoperative refraction and these studies did not identify circumstances for each of these formulas that are highly relevant to the paediatric population.…”

Section: Introductionmentioning

confidence: 99%

Accuracy of intraocular lens power calculations in paediatric eyes

Liu

Wang

et al. 2020

Clinical Exper Ophthalmology

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Importance: There is no clear consensus on which intraocular lens (IOL) power calculation formula provides the best refractive prediction in the paediatric population.Background: To evaluate the predictability of desired postoperative refractive outcomes by using six IOL formulas in paediatric cataract cases.Design: Retrospective case series.Participants: A total of 377 eyes in 377 paediatric patients (<13 years of age) who received primary IOL implants in the capsular bag.Methods: This study utilized formulas, namely, SRK II, SRK/T, Hoffer Q, Holladay 1, T2 and Super formula. Prediction errors were calculated based on the difference between the postoperative refraction and the refraction predicted by each formula. Main Outcome Measures:The mean prediction error, mean absolute error, median absolute error, percentages of eyes within the prediction errors of ±0.50 D, ±1.00 D and ± 2.00 D.Results: The mean axial length was 22.48 ± 1.91 mm (<22.0 mm for 161 eyes). The average age at surgery was 55.21 ± 28.01 months (<24 months for 37 eyes).The mean prediction error was positive (hyperopic error) with all formulas.Compared to the other IOL power formulas, SRK II showed significantly higher absolute errors (P < .001). Hoffer Q and Holladay 1 generated the least absolute error, followed closely by Super formula. Multiple logistic analyses indicated that age at time of surgery was an independent factor significantly contributing to the refractive surprise using all formulas.

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Paediatric intraocular lens implants: accuracy of lens power calculations

Cited by 19 publications

References 25 publications

Long-term results of secondary intraocular lens implantation in children under 30 months of age

Long-term results of secondary intraocular lens implantation in children under 30 months of age

Comparison of the Accuracy of IOL Power Calculation Formulas for Pediatric Eyes in Children of Different Ages

Accuracy of intraocular lens power calculations in paediatric eyes

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