Evidence map›Paper›PMID 40153153›Full record

Trial reportActa ophthalmologica2025

Influence of artificial tears on corneal parameter measurement using three different devices: Keratometry and Scheimpflug technology, a randomized trial.

Titus Schug, Thomas Kohnen, Klemens Paul Kaiser, Christoph Lwowski

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in Acta ophthalmologica, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed.

  1. Trial
  2. Article
  3. Article
  4. Article
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

4 authors.

Titus SchugDepartment of Ophthalmology, Goethe-University, Frankfurt am Main, Germany.
Thomas KohnenDepartment of Ophthalmology, Goethe-University, Frankfurt am Main, Germany.ORCID https://orcid.org/0000-0002-6933-9585
Klemens Paul KaiserDepartment of Ophthalmology, Goethe-University, Frankfurt am Main, Germany.
Christoph LwowskiDepartment of Ophthalmology, Goethe-University, Frankfurt am Main, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo evaluate the effect of artificial tear (AT) application on the repeatability of corneal parameters with three different devices.

methodsIn this prospective, randomized clinical trial, 145 patients were measured with one of three devices in the Department of Ophthalmology, Goethe University, Frankfurt, Germany. Two baseline measurements and four measurements following AT application after 30 s, 2, 5 and 10 min were performed.

resultsForty-eight eyes were measured with the IOLMaster 700 (Carl Zeiss Meditec AG, Oberkochen, Germany) and Galilei G6 (Ziemer, Port, Switzerland), and 49 with the Pentacam AXL (Oculus, Wetzlar, Germany) (145 total). Repeatability of the mean corneal power (K

conclusionThe use of AT leads to high variability of keratometric measurements for each device. This should be considered after use, and at least 5 min should elapse before measurements.

Indexed as

CorneaCorneal TopographyLubricant Eye DropsAdultAgedFemaleHumansMaleMiddle AgedProspective StudiesRefraction, OcularReproducibility of ResultsLubricant Eye Dropsartificial tearskeratometrytomographytopography

Identifiers

PMID40153153
PMCPMC12235682

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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.