ArticleScientific reports2022
Ex-vivo study on the surface quality of corneal lenticule and stroma after low energy femtosecond laser lenticule extraction.
Article in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Evaluation of Higher-Order Aberrations After the Smooth Incision Lenticular Keratomileusis (SILKClinical ophthalmology (Auckland, N.Z.) · 2024Trial
- Atomic Force Microscopy and Scanning Electron Microscopy for Characterization of Interface Surface Roughness After ELITA Femtosecond Laser Treatments.Translational vision science & technology · 2025Article
- Keratorefractive Lenticule Extraction - KLEx.Klinische Monatsblatter fur Augenheilkunde · 2025Review
- Postmortal epithelial changes of donor corneas impair applicability of a refractive ultraviolet femtosecond laser.Scientific reports · 2025Article
- Multiphoton scaling of femtosecond laser-induced refractive index change (LIRIC) in hydrogels and rabbit cornea.Biomedical optics express · 2024Article
- Assessment of Changes in Cap and Residual Stromal Thickness Values during a 6-Month Observation after Refractive Lenticule Extraction Small Incision Lenticule Extraction.Journal of clinical medicine · 2024Article
- Incisional surface quality of electron-beam irradiated cornea-extracted lenticule for stromal keratophakia: high nJ-energy vs. low nJ-energy femtosecond laser.Frontiers in medicine · 2023Article
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
This study aimed to assess the surface quality of cap, stroma and lenticular surfaces created using low-energy femtosecond laser lenticule extraction (Ziemer FEMTO LDV Z8). Twenty-four porcine eyes were divided into four groups (n = 6 each): two with optimal laser power (32%) with posterior curvature equivalent to a spherical correction of -2D and -5D, respectively and the other two with high power (64%) with spherical correction of -2D and -5D respectively. Samples were analysed using scanning electron microscopy (SEM). Surface morphology was evaluated using a standard scoring system; surface relief, surface regularity, extent and position of irregularities were graded by four independent clinicians. Eyes with 32% power and -2D correction had significantly less size of the irregular area than those with -5D; however, no significant difference was found between the two groups with 64% power. When comparing eyes with -2D correction, the size of the irregular area was lesser with 32% power. Surface relief was lesser with -5D correction with 32% power than 64% power. Low-energy femtosecond laser lenticule extraction (Ziemer FEMTO LDV Z8) produces good surface quality results. There is a tendency for smoother surface stromal quality with lower power settings than a higher power.
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