ArticleInvestigative ophthalmology & visual science2017
Estimating Human Trabecular Meshwork Stiffness by Numerical Modeling and Advanced OCT Imaging.
Article in Investigative ophthalmology & visual science, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 68 papers.
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Who cites it
68 citing papers in PubMed, 89 citations in OpenAlex.
- Trial
- Computational study of DurystaDrug delivery and translational research · 2026Article
- Investigating the coupled effects of stiffness and stretch on the trabecular meshwork cells using a hydrogel-integrated microfluidic system.Biomaterials science · 2026Article
- Cross-linked actin networks (CLANs) and their role in the trabecular meshwork.Experimental eye research · 2026Review
- Segmental Outflow and Trabecular Meshwork Stiffness in an Ocular Hypertensive Mouse Model.Investigative ophthalmology & visual science · 2026Article
- Microtubule stability modulates Schlemm's canal cell mechanobiology and outflow facility in glaucoma.bioRxiv : the preprint server for biology · 2026Article
- Cholinergic Improvement of Low-Flow Segmental Aqueous Humor Outflow in Humans.Ophthalmology science · 2026Article
- Segmental outflow and trabecular meshwork stiffness in an ocular hypertensive mouse model.bioRxiv : the preprint server for biology · 2026Article
- Transient receptor potential vanilloid 4 modulates substrate stiffness mechanosensing and transcellular pore formation in human Schlemm's canal cells.Acta biomaterialia · 2025Article
- Substrate stiffness and pressure alter retinal Müller glia response and extracellular matrix production.Biomaterials and biosystems · 2025Article
- Biomechanical properties of the trabecular meshwork in intraocular pressure regulation: a review.International ophthalmology · 2025Review
- Lipids and lipid regulators in intraocular pressure homeostasis.Current opinion in pharmacology · 2025Review
- TRPV4 modulates substrate stiffness mechanosensing and transcellular pore formation in human Schlemm's canal cells.bioRxiv : the preprint server for biology · 2025Article
- Mechanobiology in the eye.npj biological physics and mechanics · 2025Review
- Volumetric imaging of trabecular meshwork dynamic motion using 600 kHz swept source optical coherence tomography.Biomedical optics express · 2025Article
- Consensus Recommendations for Studies of Outflow Facility and Intraocular Pressure Regulation Using Ex Vivo Perfusion Approaches.Investigative ophthalmology & visual science · 2024Article
- The role of YAP/TAZ mechanosignaling in trabecular meshwork and Schlemm's canal cell dysfunction.Vision research · 2024Review
- Article
- A Histomorphometric and Computational Investigation of the Stabilizing Role of Pectinate Ligaments in the Aqueous Outflow Pathway.Journal of biomechanical engineering · 2024Article
- Real-time line-field optical coherence tomography for cellular resolution imaging of biological tissue.Biomedical optics express · 2024Article
8 more citing papers are in PubMed but not listed here.
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Authors and funding
12 authors at 2 institutions in 1 country.
Funding
Abstract
Purpose: The purpose of this study was to estimate human trabecular meshwork (hTM) stiffness, thought to be elevated in glaucoma, using a novel indirect approach, and to compare results with direct en face atomic force microscopy (AFM) measurements. Methods: Postmortem human eyes were perfused to measure outflow facility and identify high- and low-flow regions (HF, LF) by tracer. Optical coherence tomography (OCT) images were obtained as Schlemm's canal luminal pressure was directly manipulated. TM stiffness was deduced by an inverse finite element modeling (FEM) approach. A series of AFM forcemaps was acquired along a line traversing the anterior angle on a radially cut flat-mount corneoscleral wedge with TM facing upward. Results: The elastic modulus of normal hTM estimated by inverse FEM was 70 ± 20 kPa (mean ± SD), whereas glaucomatous hTM was slightly stiffer (98 ± 19 kPa). This trend was consistent with TM stiffnesses measured by AFM: normal hTM stiffness = 1.37 ± 0.56 kPa, which was lower than glaucomatous hTM stiffness (2.75 ± 1.19 kPa). None of these differences were statistically significant. TM in HF wedges was softer than that in LF wedges for both normal and glaucomatous eyes based on the inverse FEM approach but not by AFM. Outflow facility was significantly correlated with TM stiffness estimated by FEM in six human eyes (P = 0.018). Conclusions: TM stiffness is higher, but only modestly so, in glaucomatous patients. Outflow facility in both normal and glaucomatous human eyes appears to associate with TM stiffness. This evidence motivates further studies to investigate factors underlying TM biomechanical property regulation.
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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.