Mapping collagen organization in the human cornea: left and right eyes are structurally distinct
Open accessAbstract
PURPOSE: Aspects of the biomechanics and surface topography of fellow human corneas are known to exhibit midline symmetry, but the structural basis of these observations is poorly understood. The mechanical performance of the cornea is strongly influenced by the organization of stromal collagen fibrils. The present study was designed to examine and compare the organization of collagen fibrils in the corneal stroma of left and right eyes. METHODS: Wide-angle x-ray scattering was used to map in detail the orientation and distribution of fibrillar collagen across the cornea, limbus, and adjacent sclera of three normal human eyes, including a fellow pair, and the central 9-mm corneal region of a further four eyes. RESULTS: Fibrillar collagen in the human cornea and limbus is arranged anisotropically, and in a highly specific manner. Left and right corneas are structurally distinct. In general, the mass distribution of preferentially aligned fibrils in the cornea appears to exhibit a degree of midline symmetry between left and right eyes. CONCLUSIONS: Structural information, such as that presented herein, will enable a better understanding of corneal biomechanics and shape. Midline symmetry in the distribution of aligned, mechanically reinforcing collagen fibrils between left and right eyes may relate to the biomechanical and topographical enantiomorphism reported in the literature.
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This network of collagen lamellae shows mirror symmetry between left and right eyes.
“This network shows mirror symmetry between left and right eyes (Boote et al., 2006)”
From Corneal structure and transparency (2015) · cites this paper as Boote et al., 2006
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Cites
X-Ray Scattering Used to Map the Preferred Collagen Orientation in the Human Cornea and Limbus
Aghamohammadzadeh, H., Newton, R. H., & Meek, K. M. (2004) · Structure · doi:10.1016/j.str.2004.01.002 · Cited by 233 · see citing works
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Corneal structure and transparency
Meek, K. M., & Knupp, C. (2015) · Progress in Retinal and Eye Research · doi:10.1016/j.preteyeres.2015.07.001 · Cited by 853 · see citing works
Self-citation
- Authors
- Boote, C., Hayes, S., Abahussin, M., & Meek, K. M.
- Affiliations
- Cardiff University (GB)
- Venue
- Investigative Opthalmology & Visual Science
- Published
- 2006-03-01
- Volume
- 47
- Issue
- 3
- Pages
- 901
- ISSN
- 0146-0404 (ISSN-L)
- 1552-5783
- OpenAlex
- W2148209835
- Cited by
- 137
- References
- 1
- Citations by year
- 2026: 2 · 2025: 7 · 2024: 4 · 2023: 10 · 2022: 3 · 2021: 11 · 2020: 8 · 2019: 5 · 2018: 2 · 2017: 6 · 2016: 8 · 2015: 12 · 2014: 10 · 2013: 11 · 2012: 6
- FWCI
- 5.07
- Type
- journal article
- Language
- en
- Open access
- green
- orca.cardiff.ac.uk
- Locations
- Investigative Ophthalmology & Visual Science (publishedVersion)
- PubMed (publishedVersion)
- ORCA Online Research @Cardiff (Cardiff University) (submittedVersion)
- Science and Technology Facilities Council (submittedVersion)
- Topics
- Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Corneal surgery and disorders
- Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Corneal Surgery and Treatments
- Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Ocular Surface and Contact Lens
- Keywords
- corneal collagen fibrils, corneal stroma, left-right asymmetry, wide-angle X-ray scattering, corneal biomechanics, limbus, sclera, enantiomorphism, fibril orientation
- MeSH terms
- Biomechanical Phenomena, Corneal Stroma, Humans, Functional Laterality, X-Ray Diffraction, Anisotropy, Corneal Topography, Fibrillar Collagens
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