Viscoelastic Substances in Ocular Surgery
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Questions and Answers

What are the important characteristics shared by viscoelastic substances?

  • Viscosity, Tensile Strength, Ductility, Toughness, and Brittleness
  • Viscosity, Shear Flow, Elasticity, Cohesiveness, and Coatability (correct)
  • Adhesion, Absorption, Porosity, Conductivity, and Flexibility
  • Surface Tension, Compressibility, Hardness, Brittleness, and Elasticity

    • In which type of surgery are viscoelastic substances used almost exclusively?

  • Orthopedic surgery
  • Posterior segment surgery
  • Anterior segment surgery (correct)
  • Cardiothoracic surgery

    • What complications are associated with viscoelastic substances?

  • Increased corneal thickness
  • Permanent discoloration of the eye
  • Transient elevation of IOP after the procedure (correct)
  • Reduced tear production

    • What are viscoelastic substances prepared from?

    <p>Hyaluronate, chondroitin sulfate, or hydroxyl propyl methyl cellulose</p> Signup and view all the answers

    How do viscoelastic substances assist in ocular surgery?

    <p>By maintaining spaces, moving tissue, and protecting surfaces</p> Signup and view all the answers

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