Evidence map›Paper›PMID 31598523›Full record

ArticleMedical hypothesis, discovery & innovation ophthalmology journal2019

Comparative Analysis of LASIK Flap Diameter and its Centration Using Two Different Femtosecond Lasers.

Majid Moshirfar, Tanner W Brown, Madeline B Heiland, David B Rosen, Yasmyne C Ronquillo, Phillip C Hoopes

Abstract read
In one paragraph

Article in Medical hypothesis, discovery & innovation ophthalmology journal, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing 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

8 citing papers in PubMed.

  1. Article
  2. Unraveling the impact of laser refractive surgery on corneal ectasia: anFrontiers in bioengineering and biotechnology · 2025
    Article
  3. Article
  4. Article
  5. Article
  6. Article
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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.

Majid MoshirfarJohn A. Moran Eye Center, Department of Ophthalmology and Visual Sciences, School of Medicine, University of Utah Salt Lake City, UT, USA.
Tanner W BrownHealth Science Center, School of Medicine, The University of Texas, Houston, TX, USA.
Madeline B HeilandCollege of Medicine, The University of Arizona, Phoenix, AZ, USA.
David B RosenCollege of Medicine, The University of Arizona, Phoenix, AZ, USA.
Yasmyne C RonquilloHDR Research Center, Hoopes Vision, Draper, UT, USA.
Phillip C HoopesHDR Research Center, Hoopes Vision, Draper, UT, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The aim of this study was to compare the diameter, accuracy, variability, and centration with respect to the limbus of corneal flaps created by two femtosecond lasers, the VisuMax, and Wavelight FS200, for laser in situ keratomileusis (LASIK) and how these flaps affect visual outcomes. This is a retrospective chart review of flap morphology created during LASIK Surgery. Overall, 168 eyes underwent flap creation using the WaveLight FS200 laser, and on 189 eyes, the VisuMax laser was used. Of these total number, flap morphology was analyzed in a random sample of 158 eyes; 80 with the Visumax laser and 78 with the WaveLight FS200 laser. Intraoperative photos of the flaps taken by the Wavelight Allegretto EX500 were analyzed. Flap diameters and centration were measured using Adobe Acrobat Pro. All patients had visual acuity measurements including uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), spherical equivalent refraction (SE) and refractive astigmatism recorded three months postoperatively. Greater than 90% of patients in both groups achieved a UDVA of 20/20 postoperatively. The mean difference between targeted and achieved flap diameter was 0.50 +/- 0.15 mm in the VisuMax group and 0.35 +/- 0.15 millimeters (mm) in the FS200 group (

Indexed as

Corneal FlapFemtosecond LaserFlap CentrationFlap DiameterFlap MorphologyFlap PredictabilityFlap VarianceLaserLaser In Situ KeratomileusisVisuMax Laser

Identifiers

PMID31598523
PMCPMC6778470

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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.