Evidence map›Paper›PMID 33364746›Full record

ArticleClinical ophthalmology (Auckland, N.Z.)2020

Asymmetric Thickness Intracorneal Ring Segments for Keratoconus.

Pedro Manuel Baptista, João Heitor Marques, Miguel Mesquita Neves, Miguel Gomes, Luís Oliveira

Open access · goldAbstract read
In one paragraph

Article in Clinical ophthalmology (Auckland, N.Z.), 2020. 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
1.0field-weighted citation impact, top 20% 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, 24 citations in OpenAlex.

  1. Article
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  9. Article
  10. Morphological characterization and clinical effects of stromal alterations after intracorneal ring segment implantation in keratoconus.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2022
    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

5 authors at 2 institutions in 1 country.

Pedro Manuel BaptistaOphthalmology Department, Centro Hospitalar Universitário Do Porto, Porto, Portugal.ORCID 0000-0001-8285-1084
João Heitor MarquesOphthalmology Department, Centro Hospitalar Universitário Do Porto, Porto, Portugal.ORCID 0000-0001-6487-7950
Miguel Mesquita NevesOphthalmology Department, Centro Hospitalar Universitário Do Porto, Porto, Portugal.ORCID 0000-0002-3080-6035
Miguel GomesOphthalmology Department, Centro Hospitalar Universitário Do Porto, Porto, Portugal.ORCID 0000-0002-2198-7444
Luís OliveiraOphthalmology Department, Centro Hospitalar Universitário Do Porto, Porto, Portugal.ORCID 0000-0001-7532-5991
Centro Hospitalar do Porto · PTUniversidade do Porto · PT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo describe the anatomical and functional results of the implantation of asymmetric thickness intracorneal ring segments (AS-ICRS) in eyes with keratoconus and asymmetric/irregular astigmatism (type 2 - MATERIALS AND

methodsRetrospective observational study including 19 consecutive patients (21 eyes) with keratoconus who underwent manual implantation of the Keraring

resultsOverall mean age was 35.3±11.7 years and median follow-up was 7.1 months (range 6-12). At the end of follow-up, a significant improvement from baseline was achieved in both UDVA (0.24±0.22; p=0.017) and CDVA (0.21±0.17; p<0.001). Regarding topographic measurements, the greatest decrease was observed in K2 (2.76±1.9D; p<0.001) and astigmatism (1.97±1.5; p<0.001). Aberrometry analysis showed a reduction of 1.27±3.2µm in the total RMS (p=0.085), 0.24±0.9µm in HOA (p=0.227) and 0.78±0.5 (p<0.001) in the 90º component of comatic aberration. The procedure effects in the CDVA, topographic and aberrometric parameters were higher in type 2 cones without statistical significance (p>0.05 in all).

conclusionImplantation of the Keraring

Indexed as

aberrometryastigmatismasymmetricICRSkeratoconus

Identifiers

PMID33364746
PMCPMC7751710
OpenAlexW3111907682

What OpenQuestion holds

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LicenceCC BY-NC
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Registered trials

None linked

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.