OPT-2501-Cntct Lns Theory II Unit 2

Question 0

WHICH OF THE FOLLOWING DISINFECTING SOLUTIONS WOULD YOU RECOMEND TO A PATIENT WITH A HISTORY OF ALLERGIC REACTIONS?

Answer 0

HYDROGEN PEROXIDE

Question 1

THE AVERAGE ph VALUE OF HUMAN TEARS IS:

Answer 1

7.4

Question 2

WHAT IS THE PRIMARY FUNCTION OF A SURFACTANT CLEANER?

Answer 2

REMOVE LOOSELY ADHERENT DEBRIS FROM THE LENS SURFACE.

Question 3

WHICH OF THE FOLLOWING CARE SYSTEMS WOULD RESULT IN THE SHORTEST LIFE FOR A SOFT LENS?

Answer 3

HEAT

Question 4

ALL OF THE FOLLOWING ARE FUNCTIONS OF A WETTING SOLUTION EXCEPT:

Answer 4

IT CLEANS THE LENS AFTER REMOVAL

Question 5

INGREDIENTS ADDED TO CONTACT LENS SOLUTIONS TO PROTECT THEM FROM SPOILAGE AFTER BEING OPENED ARE CALLED:

Answer 5

PRESERVATIVES

Question 6

WHY SHOULDN’T DIFFERENT BRANDS OF SOFT CONTACT LENS SOLUTIONS BE MIXED?

Answer 6

A CHEMICAL REACTION MAY OCCURE CAUSING CORNEAL PROBLEMS.

Question 7

UPON DELIVERY THE WEARER SHOULD BE TOLD:

Answer 7

TO REMOVE A LENS WHICH BECOMES UNCOMFORTABLE

Question 8

STUDIES HAVE SHOWN THAT AS HIGH AS ____% OF COMPLIANT CONTACT LENS PATIENTS HAVE CONTACT LENS CASES THAT CULTURE POSITIVE.

Answer 8

42

Question 9

WHEN LENSES ARE DELIVERED TO THE PATIENT, THE WEARING SCHEDULE SHOULD BE:

Answer 9

VERBAL AND WRITTEN

Question 10

A BUFFERING AGENT IS ADDED TO A SOLUTION TO HELP CONTROL:

Answer 10

Ph LEVEL

Question 11

WHICH TYPE OF SALINE CAUSES THE LEAST PROBLEMS?

Answer 11

UNIT DOSE NON-PRESERVED*

Question 12

WHICH OF THE FOLLOWING IS MOST EFFECTIVE IN REMOVING PROTEIN BUILDUP ON SOFT CONTACT LENSES?

Answer 12

ENZYMATIC CLEANER

Question 13

ALL OF THE FOLLOWING ARE FUNCTIONS OF A SOAKING SOLUTION EXCEPT:

Answer 13

IT DISSOLVES EXCESS SILICONE MOLECULES

Question 14

WHICH OF THE FOLLOWING PRESERVATIVES IS A MERCURY BASED COMPOUND?

Answer 14

THIMEROSAL