Evidence map›Paper›PMID 35606746›Full record

Observational studyBMC ophthalmology2022

Tilt and decentration of posterior and anterior iris-claw intraocular lenses: a pilot study using anterior segment optical coherence tomography.

Giacomo Calzetti, Carlo Bellucci, Salvatore Antonio Tedesco, Maurizio Rossi, Stefano Gandolfi, Paolo Mora

Open access · goldAbstract readObservational Study
In one paragraph

Observational study in BMC ophthalmology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
2.9field-weighted citation impact, top 9% of its field
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

12 citing papers in PubMed, 17 citations in OpenAlex.

  1. Trial
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  5. Review
  6. Article
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  9. Article
  10. Light- and drug-induced pupillary dynamics in eyes with a retropupillary iris-claw intraocular lens.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2023
    Article
  11. Review
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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 at 1 institution in 2 countries.

Giacomo CalzettiOphthalmology Unit, University Hospital of Parma, via Gramsci 14, 43126, Parma, Italy.
Carlo BellucciOphthalmology Unit, University Hospital of Parma, via Gramsci 14, 43126, Parma, Italy.
Salvatore Antonio TedescoOphthalmology Unit, University Hospital of Parma, via Gramsci 14, 43126, Parma, Italy.
Maurizio RossiDepartment of Clinical and Experimental Medicine, University Hospital of Parma, Parma, Italy.
Stefano GandolfiOphthalmology Unit, University Hospital of Parma, via Gramsci 14, 43126, Parma, Italy.
Paolo MoraOphthalmology Unit, University Hospital of Parma, via Gramsci 14, 43126, Parma, Italy. paolo.mora@unipr.it.ORCID http://orcid.org/0000-0001-7133-8250
University of Parma · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundInformation on the centration and tilt of iris-claw intraocular lenses (IC-IOLs) is limited. In this study, we tested the capacity of an anterior segment optical coherence tomography (AS-OCT) instrument to measure decentration and tilt of anterior and posterior IC-IOLs through an integrated software.

methodsThe present observational, cross-sectional study was conducted at University Eye Clinic of Parma (Parma, Italy). The CASIA2 swept-source AS-OCT (Tomey Corp.) was used to measure the tilt and decentration of posterior and anterior IC-IOLs in patients implanted at least 6 months in advance. After failure with full-automation, semi-manual IOL tracing was applied. In-the-bag (IB) contralateral IOLs, when present, were measured automatically. The Bland-Altman method was used to evaluate the agreement between repeated measurements (2 images for each study eye). The amount and direction of tilt and decentration were recorded and plotted into polar charts for evaluation.

resultsA total of 21 patients were included: 14 with posterior and 7 with anterior IC-IOL fixation. In 17 eyes (81%), the AS-OCT provided a repeatable measurement of tilt and decentration. All contralateral eyes with IB IOL were automatically measured. The median decentration was 0.67 mm, 0.24 mm, and 0.24 mm in posterior IC-IOLs, anterior IC-IOLs, and IB IOLs group, respectively. The median tilt was 5.0°, 5.6°, and 5.6° for posterior IC-IOLs, anterior IC-IOLs, and IB IOLs, respectively. Tilt direction was mainly temporal, while decentration was inferior-temporal with posterior IC-IOLs and scattered with anterior IC-IOLs and IB IOLs.

conclusionsThe semi-manual tracing function of the CASIA2 AS-OCT provides repeatable and affordable measurements of the decentration and tilt of IC-IOLs in both the anterior and posterior chamber. Data from the former group were similar to the IB group.

Indexed as

Lenses, IntraocularTomography, Optical CoherenceCross-Sectional StudiesHumansPilot ProjectsANTERIOR SEGMENT OCTCATARACT SURGERYDECENTRATIONIRIS-CLAW IOLTILT

Identifiers

PMID35606746
PMCPMC9125863
OpenAlexW4281296132

What OpenQuestion holds

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Registered trials

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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.