Preservative Eye Drops and Conjunctival Hyperemia Quiz
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Questions and Answers

Which adverse effects are associated with conventional eye drops containing PGA's?

  • Blurry vision and eye irritation
  • Eye redness and itching
  • Conjunctival hyperemia and dry eye (correct)
  • Watery eyes and sensitivity to light
  • What is the reason for the adverse effects associated with conventional eye drops containing PGA's?

  • Increased concentrations and preservatives (correct)
  • Lack of active ingredients
  • Excessive usage
  • Improper storage conditions
  • Why are PGA's commonly used in conventional eye drops?

  • To minimize the need for preservatives
  • To enhance the absorption of active ingredients (correct)
  • To increase the effectiveness of the drops
  • To reduce the risk of adverse effects
  • The corneal epithelium is composed of 6–7 layers of ______ cells connected by tight junctions which serves as a lipophilic barrier, restricting entrance of most hydrophilic drugs and molecules.

    <p>epithelial</p> Signup and view all the answers

    The corneal epithelium is composed of 6–7 layers of epithelial cells connected by ______ junctions which serves as a lipophilic barrier, restricting entrance of most hydrophilic drugs and molecules.

    <p>tight</p> Signup and view all the answers

    The corneal epithelium is composed of ______–7 layers of epithelial cells connected by tight junctions which serves as a lipophilic barrier, restricting entrance of most hydrophilic drugs and molecules.

    <p>6–7</p> Signup and view all the answers

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