ArticlePloS one2015
Depth-dependent changes in collagen organization in the human peripapillary sclera.
Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.
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Who cites it
41 citing papers in PubMed.
- In Vivo Evaluation of Peripapillary Scleral Architecture in Myopia and Glaucoma Using Polarization-Sensitive Optical Coherence Tomography.Investigative ophthalmology & visual science · 2026Article
- Linear Viscoelasticity of Human Ocular Tissues During Tensile Stress Relaxation.Investigative ophthalmology & visual science · 2026Article
- Possible Extension of Inner Scleral Fibers Into the Peripapillary Sclera Detected by Polarization-Sensitive OCT.Investigative ophthalmology & visual science · 2026Article
- Biomechanical Strain Responses in the Sclera, Choroid, and Retina in Glaucoma Patients After Intraocular Pressure Lowering.Journal of biomechanical engineering · 2025Article
- Whorl-Like Collagen Fiber Arrangement Around Emissary Canals in the Posterior Sclera.Investigative ophthalmology & visual science · 2025Article
- Postmortem Digital Image Correlation and Finite Element Modeling Demonstrate Posterior Scleral Deformations during Optic Nerve Adduction Tethering.Bioengineering (Basel, Switzerland) · 2024Article
- Biomechanical Correlations Between the Cornea and the Optic Nerve Head.Investigative ophthalmology & visual science · 2024Article
- IOP and glaucoma damage: The essential role of optic nerve head and retinal mechanosensors.Progress in retinal and eye research · 2024Review
- Fibrous finite element modeling of the optic nerve head region.Acta biomaterialia · 2024Article
- 2D or not 2D? Mapping the in-depth inclination of the collagen fibers of the corneoscleral shell.Experimental eye research · 2023Article
- Deep Optic Nerve Head Morphology in Tilted Disc Syndrome and Its Clinical Implication on Visual Damage.Investigative ophthalmology & visual science · 2023Article
- A direct fiber approach to model sclera collagen architecture and biomechanics.Experimental eye research · 2023Article
- Simultaneous Assessment of the Whole Eye Biomechanics Using Ultrasonic Elastography.IEEE transactions on bio-medical engineering · 2023Article
- Effects of experimental glaucoma in Lama1Experimental eye research · 2023Article
- Lysyl oxidase-like 1 deficiency alters ultrastructural and biomechanical properties of the peripapillary sclera in mice.Matrix biology plus · 2022Article
- Finite element modeling of effects of tissue property variation on human optic nerve tethering during adduction.Scientific reports · 2022Article
- Material properties and effect of preconditioning of human sclera, optic nerve, and optic nerve sheath.Biomechanics and modeling in mechanobiology · 2021Article
- Regional Differences and Physiologic Behaviors in Peripapillary Scleral Fibroblasts.Investigative ophthalmology & visual science · 2021Article
- Biomechanics of the optic nerve head and peripapillary sclera in a mouse model of glaucoma.Journal of the Royal Society, Interface · 2020Article
- Role of radially aligned scleral collagen fibers in optic nerve head biomechanics.Experimental eye research · 2020Article
Corrections and comments
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Authors and funding
7 authors.
Funding
Abstract
purposeThe collagen structure of the human peripapillary sclera plays a significant role in determining optic nerve head (ONH) biomechanics, and is therefore of interest in the study of glaucoma. The aim of the current work was to map the anisotropic collagen structure of the normal human peripapillary sclera as a function of tissue depth.
methodsWide-angle x-ray scattering was used to quantify collagen fibril orientation at 0.5 mm intervals across six 150 μm-thick serial sections through the peripapillary sclera of eight normal European-derived human eyes. Two structural parameters were measured: 1) the relative number of fibrils preferentially aligned at a given angle within the tissue plane, 2) the degree of collagen alignment (anisotropy).
resultsThe inner-most one-third of the peripapillary scleral stroma (nearest to the choroid) was characterised by collagen fibrils either randomly arranged or preferentially aligned radially with respect to the ONH. In contrast, the outer two-thirds of the tissue was dominated by a circumferential arrangement of collagen encircling the ONH. In all tissue regions the degree of collagen anisotropy peaked in the mid-stroma and progressively decreased towards the tissue surfaces, with the largest depth variations occurring in the inferior-nasal quadrant, and the smallest occurring in the superior-nasal quadrant.
conclusionsSignificant, region-specific variations in collagen structure are present in the human peripapillary sclera as a function of depth. In normal eyes, the circumferential collagen fibril architecture is most prominent in the outer two-thirds of the stroma, possibly as a mechanical adaption to more effectively support the lamina cribrosa at the level of its insertion into the scleral canal wall.
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