Evidence map›Paper›PMID 33139876›Full record

ArticleEye (London, England)2021

Refractive and visual outcomes of small incision lenticule extraction (SMILE) in eyes with thin corneas.

Asli Kirmaci Kabakci, Burcin Kepez Yildiz, Yusuf Yildirim, Alper Agca, Fevziye Ondes Yilmaz, Gokhan Demir, Beril Tulu Aygun, Ahmet Demirok

Open access · bronzeAbstract read
In one paragraph

Article in Eye (London, England), 2021. 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
0.8field-weighted citation impact, top 24% 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, 16 citations in OpenAlex.

  1. Article
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  6. Review
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  8. Small incision lenticule extraction and femtosecond-assisted laserInternational journal of ophthalmology · 2023
    Article
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  12. Review
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

8 authors at 4 institutions in 1 country.

Asli Kirmaci KabakciDepartment of Ophthalmology, University of Health Sciences Okmeydani Training and Research Hospital, Istanbul, Turkey.ORCID http://orcid.org/0000-0003-4032-4467
Burcin Kepez YildizUniversity of Health Sciences Beyoglu Eye Training and Research Hospital, Istanbul, Turkey.
Yusuf YildirimUniversity of Health Sciences Beyoglu Eye Training and Research Hospital, Istanbul, Turkey. yusufyldrm82@gmail.com.ORCID http://orcid.org/0000-0002-4161-0919
Alper AgcaAtakoy Dunya Goz Hospital, Bakirkoy, Istanbul, Turkey.
Fevziye Ondes YilmazUniversity of Health Sciences Beyoglu Eye Training and Research Hospital, Istanbul, Turkey.
Gokhan DemirDepartment of Ophthalmology, Istanbul Fatih Sultan Mehmet Training and Research Hospital, Istanbul, Turkey.ORCID http://orcid.org/0000-0002-3293-3396
Beril Tulu AygunUniversity of Health Sciences Beyoglu Eye Training and Research Hospital, Istanbul, Turkey.ORCID http://orcid.org/0000-0003-4091-7094
Ahmet DemirokDepartment of Ophthalmology, Istanbul Medeniyet University, Istanbul, Turkey.
Sağlık Bilimleri Üniversitesi · TRDünyagöz Hospital · TRFatih Sultan Mehmet Eğitim Ve Araştırma Hastanesi · TRIstanbul Medeniyet University · TR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo report the refractive and visual outcomes of small incision lenticule extraction (SMILE) with the thinnest corneal thickness (CCT) of less than 500 µm and evaluate it in terms of safety and efficacy.

settingRefractive Surgery Clinic of University of Health Sciences Beyoglu Eye Training and Research Hospital, Istanbul, Turkey.

designRetrospective case series.

methodsThe pre-and-postoperative examinations of all patients with thin corneas (preoperative CCT <500 µm) who underwent the SMILE procedure and had a minimum of 24 months of follow-up records were reviewed from medical files. The main outcome measures of the refractive and visual outcomes and the effect on corneal high order aberrations (HOAs) were evaluated.

resultsThe study included 55 eyes of 39 patients. The mean preoperative uncorrected visual acuity (UDVA) was 1.3 ± 1.5 logMAR, and the mean postoperative UDVA was significantly improved to 0.05 ± 0.80 logMAR at the last visit (p < 0.001). At the last follow-up, 84% of the eyes were within ± 0.50D, and 96% of the eyes were within ±1.00D of attempted SE refraction. The HOAs of coma (p < 0.001), secondary astigmatism (p = 0.015), spherical aberration (p < 0.001), and RMS (p < 0.001) aberrations increased significantly from the baseline to the postoperative last visit. The increase in trefoil was not significant (p = 0.32). No sight threatening complications or ectasia were observed during the follow-up time.

conclusionSMILE is a safe and effective technique with long-term stability for treatment of myopia in eyes with a thin cornea, and satisfactory results can be obtained if candidates for surgery are selected carefully with particular emphasis on normal preoperative corneal topography.

Indexed as

MyopiaRefraction, OcularCorneaCorneal StromaHumansLasers, ExcimerRetrospective StudiesTreatment Outcome

Identifiers

PMID33139876
PMCPMC8302576
OpenAlexW3097118354

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.