The vitreous was characterised according to a 4-parameter Burgers model, consisting of a Maxwell element in series with a Kelvin element. Purpose, which allowed working with very small samples of the vitreous. They employed a magnetic microrheometer specifically designed for the Lee et al., 1992 first performed a systematic study of the rheological properties of the vitreous humour. The concentration of collagen fibrils, which is mainly responsible for the viscoelasticity of the vitreous, is higher in the peripheral region, in contact with the retina, which is denoted as vitreous cortex. Macromolecules, such as collagen and hyaluronic acid and other non-collagenous soluble proteins (Sebag 1989). It contains 99% water, 0.9% low molecular weight solutes, 0.1% The vitreous humour is an avascular material of gel-like consistence and viscoelastic properties. the way in which the IOP is clinically measured (e.g. Another purely mechanical problem related to the eye is tonometry, i.e. Fitt & Gonzalez 2006 Heys & Barocas 2002). The thermallyĭriven flow of the aqueous humour in the anterior chamber of the eye has also been thoroughly studied both theoretically and numerically (e.g. (2004).Ī very large body of biomechanical literature has been produced aimed at understanding the mechanisms controlling the intraocular pressure (IOP) and the related issue of pathogenesis of glaucoma, i.e. A relatively recent comprehensive review on eye biomechanics can be found in Ethier et al. Such a growing interest in the field is corroborated by the increasing number of specific scientific meetings on this topic recently organised, primarily in the United States, and by the fact that eye biomechanics has started appearing in introductory textbooks of biomechanics Indeed, both eye physiology and the generation of various eye pathological states are inherently associated with mechanics of solids, fluids and materials. Motion of the vitreous body induced by eyeĮye biomechanics is a rapidly growing area in biomechanics. Abnominal Aortic Aneurisms (AAA): a fluid mechanics perspective.Motion of the vitreous body induced by eye.
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