The Role of the Pharmacist in Educating and Counseling Patients on Contact Lens Care

1. Regarding cornea anatomy, the stroma comprises _____% of corneal thickness.

   • A) 25
   • B) 45
   • C) 75
   • D) 90*

2. Patients must avoid any exposure to ¬¬¬¬¬________ during lens wear and their lens care.

   • A) Sun
   • B) Water*
   • C) Gas
   • D) None of the answers is correct.

3. Which of the following is a recommendation of the American Optometry Association regarding contact lens care?

   • A) Replacing the lens case every three to six months
   • B) Use new solution in the lens case every night
   • C) Empty the contact lens case of the old solution and let it dry out
   • D) All of the answers are correct.*

4. Which of the following is part of the stand-alone FDA approval process for contact lens solutions?

   • A) Achieves MultiPurpose Disinfection Solution (MPDS) labeling
   • B) No contact lens is used in the testing
   • C) 3 log unit reduction of bacteria and 1 log unit reduction of fungus is required
   • D) All of the answers are correct.*

5. Which solution maintained its efficacy against Pseudomonas & S. aureus after 7 days of soaking with a contact lens?

   • A) Renu MultiPlus
   • B) Optifree Express *
   • C) Complete
   • D) SoloCare

6. Which of the following types of contact lens solutions is preservative-free?

   • A) Polyquad/aldox based
   • B) Biguanide based
   • C) Hydrogen peroxide based*
   • D) All of the answers are correct.

7. _________ disrupts the most superficial tissue line of defense against pathogens and is part of the preservative uptake and release mechanism.

   • A) Fluorescein neutrality
   • B) Corneal staining*
   • C) Excessive conjunctival concentration
   • D) None of the answers is correct.

8. Which is true regarding store-brand generic contact lens solutions?

   • A) They may change from year to year.
   • B) They may confuse consumers because of different labeling and use of colors.
   • C) They are generally older solutions.
   • D) All of the answers are correct.*

9. Which of the following is true regarding peroxide-based contact lens cleaning solutions?

   • A) They lose their effective ness against microorganisms after 15 to 30 minutes.
   • B) Re-growth of Acanthamoeba during storage is a problem.
   • C) It takes four to six hours to effectively kill Acanthamoeba with 3% hydrogen peroxide contact lens cleaning solutions.
   • D) All of the answers are correct.*

10. Which of the following caveats is false regarding lens care products?

    • A) Patients should not top off cleaning solution.
    • B) Pharmacists should reinforce the recommendation of an eye care professional even if a patient wants to change products.
    • C) Saline is acceptable to be used as a disinfectant.*
    • D) Patients should avoid all types of water in eyes, lenses, and lens cases during contact lens wear.