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Anatomy and Physiology of the Vitreo-macular Interface

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Part of the Essentials in Ophthalmology book series (ESSENTIALS)

Abstract

The vitreous occupies four fifths of the volume of the eyeball and consists of collagen fibers and hyaluronic acid. These components maintain a clear matrix with viscoelastic properties resulting in outward mechanical forces responsible for retinal attachment. Anatomically, the vitreous can be divided into vitreous base, core, and cortex. The vitreous cortex envelopes the core, with attachments to all its contiguous structures, such as the vitreous base, the lens, parafovea, margin of optic nerve, and major retinal blood vessels. Anchoring fibrils grow from the inner layer of the vitreous cortex into the internal limiting membrane of the retina forming the vitreoretinal interface. Diffusion of molecules can occur through this interface in a unilateral direction providing a pathway for intravitreal drug delivery.

Keywords

Optic Nerve Hyaluronic Acid Internal Limit Membrane Posterior Vitreous Detachment Lamina Densa 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  1. 1.Department of Ophthalmology and Visual SciencesUniversity of Wisconsin-MadisonMadisonUSA
  2. 2.University of Wisconsin Fundus Photograph Reading Center, University of Wisconsin-MadisonMadisonUSA

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