A finite-element analysis model of orbital biomechanics

Vision Res. 2006 May;46(11):1724-31. doi: 10.1016/j.visres.2005.11.022. Epub 2006 Jan 18.


To reach a better understanding of the suspension of the eye in the orbit, an orbital mechanics model based upon finite-element analysis (FEA) has been developed. The FEA model developed contains few prior assumptions or constraints (e.g., the position of the eye in the orbit), allowing modeling of complex three-dimensional tissue interactions; unlike most current models of eye motility. Active eye movements and forced ductions were simulated and showed that the supporting action of the orbital fat plays an important role in the suspension of the eye in the orbit and in stabilization of rectus muscle paths.

MeSH terms

  • Adipose Tissue / physiology
  • Adult
  • Biomechanical Phenomena
  • Elasticity
  • Eye Movements / physiology
  • Female
  • Finite Element Analysis*
  • Humans
  • Magnetic Resonance Imaging
  • Models, Biological
  • Muscle, Skeletal / physiology
  • Orbit / physiology*
  • Poisson Distribution
  • Rotation