ArticleComputer methods and programs in biomedicine2021
Ocular biomechanics due to ground blast reinforcement.
Article in Computer methods and programs in biomedicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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14 citing papers in PubMed.
- Impact of material property modifications on optical performance: a multidisciplinary study in the human eye under different intraocular pressures.Biomedical optics express · 2025Article
- Corneal strain influences keratocyte proliferation and migration through upregulation of ALDH3A1 expression.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2024Article
- Influence of Contact Lens Parameters on Cornea: Biomechanical Analysis.Bioengineering (Basel, Switzerland) · 2024Article
- Contact lens fitting and changes in the tear film dynamics: mathematical and computational models review.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2024Review
- Blast injury: Impact to the cornea.Experimental eye research · 2024Review
- Morphological and biomechanical analyses of the human healthy and glaucomatous aqueous outflow pathway: Imaging-to-modeling.Computer methods and programs in biomedicine · 2023Article
- Biomechanics of open-globe injury: a review.Biomedical engineering online · 2023Review
- Opto-mechanical self-adjustment model of the human eye.Biomedical optics express · 2023Article
- A position- and time-dependent pressure profile to model viscoelastic mechanical behavior of the brain tissue due to tumor growth.Computer methods in biomechanics and biomedical engineering · 2023Article
- Explosive eye injuries: characteristics, traumatic mechanisms, and prognostic factors for poor visual outcomes.Military Medical Research · 2023Article
- Modeling the Endothelial Glycocalyx Layer in the Human Conventional Aqueous Outflow Pathway.Cells · 2022Article
- The Effect of Intraocular Pressure Load Boundary on the Biomechanics of the Human Conventional Aqueous Outflow Pathway.Bioengineering (Basel, Switzerland) · 2022Article
- Modeling the biomechanics of the conventional aqueous outflow pathway microstructure in the human eye.Computer methods and programs in biomedicine · 2022Article
- Ocular biomechanics during improvised explosive device blast: A computational study using eye-specific models.Injury · 2022Article
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Abstract
BACKGROUND AND
objectiveBomb blast injuries exerts a shearing force on the air-tissue interfaces, causing devastating ocular injury from the blast wave. Improvised explosive devices (IEDs) are usually placed at different heights from the ground to induce more severe injury through ground blast reinforcement (GBR). However, there is still a lack of knowledge of the role of GBR and IED height from the ground on ocular biomechanics, and how they can affect the intraocular pressure (IOP) in the eye. This study aimed to estimate the IOP due to frontal IED explosion at different heights from the ground using a fluid-structure interaction model with and without GBR effects.
methodsA 2 kg IED was placed within 5 m of the victim at 5 different heights from the ground, including 0, 0.42, 0.85, 1.27, and 1.70 m. Two different blast formulations were used to simulate the IED explosion: (a) spherical airburst, with no amplification of the initial shock wave due to interaction with the ground-surface, and (b) hemispherical surface-burst, where the initial blast wave is immediately reflected and reinforced by the ground (GBR).
resultsResults revealed that the blast wave due to GBR reaches to the skull prior to the IED blast itself. The GBR also reached to the skull ∼ 0.6 ms earlier when the IED was on the ground compared to the height of 1.70 m. The highest and lowest IOPs of ∼ 17,000 and ∼ 15,000 mmHg were observed at the IED heights of 1.70 and 0 m from the ground considering GBR. However, when the role of the GBR is ignored, IOP of ∼ 9,000 mmHg was observed regardless of the IED height from the ground. The deformation in the apex of the cornea was higher when considering the GBR (∼ 0.75 cm) versus no GBR (∼ 0.65 cm). Considering GBR led to higher stresses and strains in the sclera.
conclusionsWhen the role of GBR was ignored, the results showed similar patterns and magnitudes of stresses and deformations in the skull and eye regardless of the height of the IED from the ground, which was not the case when GBR was considered. The findings of this study suggest the critical role of GBR in ocular blast simulations.
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