Evidence map›Paper›PMID 34407889›Full record

ArticleInternational journal of retina and vitreous2021

Intraocular lens power calculation formulas accuracy in combined phacovitrectomy: an 8-formulas comparison study.

Diogo Hipólito-Fernandes, Maria Elisa Luís, Diogo Maleita, Pedro Gil, Vitor Maduro, Lívio Costa, Nuno Marques, João Branco, Nuno Alves

Abstract read
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Article in International journal of retina and vitreous, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

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0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

Who cites it

9 citing papers in PubMed.

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4 · The record

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PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Diogo Hipólito-FernandesDepartment of Ophthalmology, Centro Hospitalar Universitário de Lisboa Central, Alameda de Santo António dos Capuchos, 1169-050, Lisbon, Portugal. cdiogo777@gmail.com.ORCID http://orcid.org/0000-0002-5972-4068
Maria Elisa LuísDepartment of Ophthalmology, Centro Hospitalar Universitário de Lisboa Central, Alameda de Santo António dos Capuchos, 1169-050, Lisbon, Portugal.
Diogo MaleitaDepartment of Ophthalmology, Centro Hospitalar Universitário de Lisboa Central, Alameda de Santo António dos Capuchos, 1169-050, Lisbon, Portugal.
Pedro GilDepartment of Ophthalmology, Centro Hospitalar Universitário de Lisboa Central, Alameda de Santo António dos Capuchos, 1169-050, Lisbon, Portugal.
Vitor MaduroDepartment of Ophthalmology, Centro Hospitalar Universitário de Lisboa Central, Alameda de Santo António dos Capuchos, 1169-050, Lisbon, Portugal.
Lívio CostaDepartment of Ophthalmology, Centro Hospitalar Universitário de Lisboa Central, Alameda de Santo António dos Capuchos, 1169-050, Lisbon, Portugal.
Nuno MarquesDepartment of Ophthalmology, Centro Hospitalar Universitário de Lisboa Central, Alameda de Santo António dos Capuchos, 1169-050, Lisbon, Portugal.
João BrancoDepartment of Ophthalmology, Centro Hospitalar Universitário de Lisboa Central, Alameda de Santo António dos Capuchos, 1169-050, Lisbon, Portugal.
Nuno AlvesDepartment of Ophthalmology, Centro Hospitalar Universitário de Lisboa Central, Alameda de Santo António dos Capuchos, 1169-050, Lisbon, Portugal.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundOur study aimed to assess and compare the accuracy of 8 intraocular lens (IOL) power calculation formulas (Barrett Universal II, EVO 2.0, Haigis, Hoffer Q, Holladay 1, Kane and PEARL-DGS) in patients submitted to combined phacovitrectomy for vitreomacular (VM) interface disorders.

methodsRetrospective chart review study including axial-length matched patients submitted to phacoemulsification alone (Group 1) and combined phacovitrectomy (Group 2). Using optimized constants in both groups, refraction prediction error of each formula was calculated for each eye. The optimised constants from Group 1 were also applied to patients of Group 2 - Group 3. Outcome measures included the mean prediction error (ME) and its standard deviation (SD), mean (MAE) and median (MedAE) absolute errors, in diopters (D), and the percentage of eyes within ± 0.25D, ± 0.50D and ± 1.00D.

resultsA total of 220 eyes were included (Group 1: 100; Group 2: 120). In Group 1, the difference in formulas absolute error was significative (p = 0.005). The Kane Formula had the lowest MAE (0.306) and MedAE (0.264). In Group 2, Kane had the overall best performance, followed by PEARL-DGS, EVO 2.0 and Barrett Universal II. The ME of all formulas in both Groups 1 and 2 were 0.000 (p = 0.934; p = 0.971, respectively). In Group 3, a statistically significant myopic shift was observed for each formula (p < 0.001).

conclusionSurgeons must be careful regarding IOL power selection in phacovitrectomy considering the systematic myopic shift evidenced-constant optimization may help eliminating such error. Moreover, newly introduced formulas and calculation methods may help us achieving increasingly better refractive outcomes both in cataract surgery alone and phacovitrectomy.

Indexed as

Formulas accuracyIntraocular lens powerPhavocitrectomyVitreomacular interface disorders

Identifiers

PMID34407889
PMCPMC8371894

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.