ArticleBMC ophthalmology2016
Corneal biomechanical changes in eyes with small incision lenticule extraction and laser assisted in situ keratomileusis.
Article in BMC ophthalmology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 2 of them syntheses that pooled 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.
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.
Who cites it
29 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Effects of SMILE on intraocular pressure and corneal biomechanics: a systematic review and meta-analysis.International ophthalmology · 2026Pooled it
- Corneal biomechanical properties after SMILE versus FLEX, LASIK, LASEK, or PRK: a systematic review and meta-analysis.BMC ophthalmology · 2019Pooled it
- Changes in posterior corneal elevation and associated factors following small incision lenticule extraction in patients with high myopia and thin cornea: a prospective randomized clinical study.Lasers in medical science · 2025Trial
- Changes in corneal biomechanics during small-incision lenticule extraction (SMILE) and femtosecond-assisted laser in situ keratomileusis (FS-LASIK).Lasers in medical science · 2020Trial
- Underestimation of Intraocular Pressure (IOP) After LASIK and PRK: Systematic Review and Meta-Analysis.Journal of clinical medicine · 2026Review
- Comparison of Postoperative Corneal Higher-Order Aberrations, Asphericity, Densitometry, and Optical Quality Between SMILE Pro and LASIK: A Retrospective Cohort Study.Clinical ophthalmology (Auckland, N.Z.) · 2026Article
- Hyperopic keratorefractive lenticule extraction.Journal of cataract and refractive surgery · 2026Review
- A novel corneal indentation device for comparison of corneal tangent modulus before and after FS-LASIK in vivo.Biomedical engineering online · 2025Article
- Early elastic and viscoelastic corneal biomechanical changes after photorefractive keratectomy and small incision lenticule extraction.International ophthalmology · 2024Article
- Corneal Biomechanics After SMILE, Femtosecond-Assisted LASIK, and Photorefractive Keratectomy: A Matched Comparison Study.Translational vision science & technology · 2023Article
- Clinical Evaluation of Corneal Biomechanics following Laser Refractive Surgery in Myopic Eyes: A Review of the Literature.Journal of clinical medicine · 2022Review
- Corneal densitometry after allogeneic small-incision intrastromal lenticule implantation for hyperopia correction.BMC ophthalmology · 2022Article
- Clinical Outcomes Comparison of Combined Small Incision Lenticule Extraction with Collagen Cross-Linking Versus Small Incision Lenticule Extraction Only.Journal of ophthalmology · 2022Article
- Twelve-year global publications on small incision lenticule extraction: A bibliometric analysis.Frontiers in medicine · 2022Article
- Short term changes in corneal stress-strain index and other corneal biomechanical parameters post-laser in situ keratomileusis.Indian journal of ophthalmology · 2021Article
- A Novel Approach to Enhancement Linked Laser Asymmetric Keratectomy Using Semi-Cylindrical Ablation Pattern in Patients with Myopic Regression After Laser Refractive Surgery.Clinical ophthalmology (Auckland, N.Z.) · 2021Article
- Advances in Imaging Technology of Anterior Segment of the Eye.Journal of ophthalmology · 2021Review
- Study on change in corneal biomechanics and effect of percent tissue altered in myopic laser-assistedIndian journal of ophthalmology · 2020Observational
- Complications of small incision lenticule extraction.Indian journal of ophthalmology · 2020Review
- Corneal Stability of LASIK and SMILE When Combined With Collagen Cross-Linking.Translational vision science & technology · 2019Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundEvaluating the corneal biomechanical changes using the Ocular Response Analyzer and the Corvis ST in eyes with incision lenticule extraction (SMILE) and laser assisted in situ keratomileusis (LASIK).
methodsThis is a retrospective study that included 50 eyes equally divided into two groups. The first group included eyes that underwent SMILE procedure using VisuMax® 500 kHz laser system (Carl Zeiss Meditec, Jena, Germany) and the second group included eyes that underwent LASIK procedure using the EX500 Allegretto excimer laser platform (Wavelight GmbH, Erlangen, Germany). The Ocular Response Analyzer (ORA) and the Corvis ST (CST) measured the corneal biomechanical changes before and after the procedures.
resultsThe ORA showed significant decrease of corneal hysteresis (CH) and corneal resistance factor (CRF) in both groups postoperatively. The percentage of change of CH and CRF were found to be significantly higher in group II. There was no significant difference in the IOP with the ORA and the CST pre and postoperatively in either group. Using CST, the deformation amplitude and HC peak distances increased significantly in both groups. It was also noted that the mean percentage of change of the deformation amplitude was nearly five times higher in group II than group I.
conclusionBoth LASIK and SMILE substantially decreased the corneal biomechanical properties with greater reduction in the LASIK group.
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Registered trials
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.