Ocular Anatomy & Physiology: Vitreous
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Questions and Answers

What is the primary function of the vitreous gel in regards to solute diffusion?

  • To impede solute diffusion from the retinal vessels into the posterior vitreous
  • To facilitate solute diffusion from the anterior segment into the posterior vitreous
  • To slow down diffusion of solutes from the retinal vessels into the posterior vitreous (correct)
  • To completely block solute diffusion from the anterior segment into the posterior vitreous
  • What is the role of the vitreous in maintaining oxygen levels in the eye?

  • To supply oxygen directly to the retina
  • To maintain high oxygen levels throughout the vitreous
  • To prevent high oxygen levels from reaching the posterior lens surface (correct)
  • To increase oxygen levels in the posterior lens surface
  • What is the vitreous's role in metabolism?

  • To act as a buffer for pH levels in the eye
  • To act as a source of oxygen for the retina
  • To act as a reservoir of glucose for retinal metabolism (correct)
  • To act as a waste removal system for the retina
  • What is the result of aging on the vitreous gel structure?

    <p>Formation of vacuoles and opacities</p> Signup and view all the answers

    What is the role of the vitreous in pharmacology?

    <p>To act as a reservoir for intravitreal medications</p> Signup and view all the answers

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