Evidence map›Paper›PMID 29545950›Full record

ArticleJournal of ophthalmology2018

Comparison of Two Toric IOL Calculation Methods.

C Kern, K Kortüm, M Müller, A Kampik, S Priglinger, W J Mayer

Abstract read
In one paragraph

Article in Journal of ophthalmology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing 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

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed.

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4 · The record

Corrections and comments

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

6 authors.

C KernDepartment of Ophthalmology, Ludwig-Maximilians-University, Munich, Germany.ORCID 0000-0002-9699-9255
K KortümDepartment of Ophthalmology, Ludwig-Maximilians-University, Munich, Germany.ORCID 0000-0001-9442-0708
M MüllerDepartment of Ophthalmology, Ludwig-Maximilians-University, Munich, Germany.
A KampikDepartment of Ophthalmology, Ludwig-Maximilians-University, Munich, Germany.
S PriglingerDepartment of Ophthalmology, Ludwig-Maximilians-University, Munich, Germany.
W J MayerDepartment of Ophthalmology, Ludwig-Maximilians-University, Munich, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo compare two calculators for toric intraocular lens (IOL) calculation and to evaluate the prediction of refractive outcome.

methodsSixty-four eyes of forty-five patients underwent cataract surgery followed by implantation of a toric intraocular lens (Zeiss Torbi 709 M) calculated by a standard industry calculator using front keratometry values. Prediction error, median absolute error, and refractive astigmatism error were evaluated for the standard calculator. The predicted postoperative refraction and toric lens power values were evaluated and compared after postoperative recalculation using the Barrett calculator.

resultsWe observed a significant undercorrection in the spherical equivalent (0.19 D) by using a standard calculator (

conclusionConsideration of only corneal front keratometric values for toric lens calculation may lead to postoperative undercorrection of astigmatism. The prediction of postoperative refractive outcome can be improved by using appropriate methods of adjustment in order to take PCA into account.

Identifiers

PMID29545950
PMCPMC5818930

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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.