Ocular Biomechanics
Ocular Biomechanics - Related Videos
05:08
The Mammalian Ocular Lens in Focus: Development, Anatomy, Physiology, Transparency, Biomechanics, and Age-Related Challenges
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2026
The function of the ocular lens to focus light onto the retina depends on tissue transparency, biomechanics, and refractive index. This review highlights the three-dimensional architecture of the lens and discusses the complex mechanisms that maintain tissue homeostasis.
04:42
In Vivo Biomechanical Testing of Nerve: A Procedure for Biomechanical Analysis of Brachial Plexus Nerve Injury in a Neonatal Pig Model
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2025
In this video, we demonstrate the biomechanical testing of the brachial plexus nerve in a pig model to measure the threshold tensile strength of the nerve when subjected to stretching. This technique helps in determining the structural and mechanical properties of the nerve.
06:35
Experimental Glaucoma Induced by Ocular Injection of Magnetic Microspheres
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Cited by 25 •
2015
We present a method for inducing elevated intraocular pressure (IOP), by injecting magnetic microspheres into the rat eye, to model glaucoma. This leads to strong pressure rises, and extensive neuronal death. This protocol is easy to perform, does not require repeat injections, and produces stable long-lasting IOP rises.
03:06
A Method to Induce Ocular Surface Inflammation in a Murine Model
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2025
This video demonstrates a method to induce ocular surface inflammation and meibomian gland dysfunction in a murine model. Stimulation of the mouse's immune system using an immunogen and later restimulation with the same immunogen promotes ocular surface inflammation, which causes plugging of meibomian gland secretion through neutrophil-produced aggNETs and leads to dry eye disease.
06:34
Laser-Induced Chronic Ocular Hypertension Model on SD Rats
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Cited by 26 •
2007
Glaucoma is one of the major causes of blindness in the world. Elevated intraocular pressure is a major risk factor. Laser photocoagulation induced ocular hypertension is one of the well established animal models. This video demonstrates how to induce ocular hypertension by Argon laser photocoagulation in rat.
FAQs
Intraocular pressure applies mechanical loading to ocular tissues, while stiffness and elasticity determine how strongly those tissues resist deformation. Geometry influences where stresses and shape changes develop, so two eyes exposed to similar pressure may respond differently. Evaluating these variables together helps researchers interpret structural changes rather than treating pressure as an isolated factor.
Fluid-structure interactions describe how ocular fluids and tissues influence one another during mechanical loading. Changes in fluid pressure can alter the shape of surrounding structures, while tissue deformation can affect the mechanical environment experienced by the fluids. This relationship is important for modeling pressure-related behavior in structures such as the cornea, sclera, and optic nerve head.
Mechanical loading associated with intraocular pressure can produce deformation in the optic nerve head, making its mechanical response relevant to glaucoma research. Ocular biomechanics provides tools for examining how pressure, tissue properties, and geometry contribute to this response. These analyses can support investigation of structural changes linked to eye health without relying on pressure measurements alone.
Predictions should account for intraocular pressure, tissue stiffness, elasticity, geometry, and the interaction between fluids and solid structures. These factors jointly determine how the eye deforms under mechanical loading and how that response may change over time. Computational models can integrate the variables to characterize behavior and evaluate possible structural consequences.
A typical investigation combines mechanical testing, medical imaging, and computational modeling. Mechanical testing characterizes tissue responses, imaging captures ocular structures and their geometry, and modeling helps relate measured properties to deformation under loading. Using these approaches together provides a broader assessment than any single technique and supports prediction of changes over time.
The field is useful when researchers need to characterize how the cornea responds to pressure and mechanical loading. Measurements of tissue stiffness, elasticity, geometry, and deformation can clarify corneal behavior and support evaluation of changes in eye structure. This information also contributes to the bioengineering assessment of refractive and other ocular surgeries.
Biomechanical analysis can inform refractive and ocular surgery by showing how tissue properties, geometry, and loading relate to deformation. The same principles guide the design of implants and diagnostic technologies, because successful devices must function within the eye’s mechanical environment. Modeling and measurement help connect design choices with expected structural behavior and eye health.
Bioengineering studies can use ocular biomechanics to characterize tissue responses, assess corneal behavior, investigate pressure-related changes relevant to glaucoma, and predict structural responses over time. The resulting information supports both clinical research and technology development, including diagnostic tools and implants. Its value comes from linking measurable mechanical properties with observed or modeled changes in ocular structures.