Contact Lens Delivery Procedures

Question 1

The best way to begin a training session is by explaining

A. Insertion and removal
B. Proper use of solutions
C. Adaptive symptoms
D. Abnormal symptoms

Answer 1

Adaptive symptoms

Question 2

When expalining care procedures to patients, they hear about ________% of what you say.

A. 25
B. 50
C. 75
D. 85

Answer 2

25%

Question 3

When watching patients demonstrate proper use of their care system, you should be sure that

A. They don’t touch the tips of the solution bottles
B. They clean the lenses using a back-and-forth motion
C. The understand the function of each solution
D. All of the Above

Answer 3

All of the Above

Question 4

The taco test is

A. An FDA test fir antimicrobial effectiveness
B. A way to tell if the soft lens is inverted
C. A way to tell if patients understand their care system
D. A confirmation of contact lens base curvature

Answer 4

A way to tell if the soft lens is inverted

Question 5

Adaptive symptoms of contact lens wear include all of the following except

A. A mild foreign body sensation
B. itching
C. Dryness
D. Decrease of visual acuity

Answer 5

Decrease in visual acuity

Question 6

An abnormal symptom of contact lens wear is

A. A mild foreign body sensation
B. itching
C. Dryness
D. Redness of the eye that doesn’t clear up

Answer 6

Redness of the eye that doesn’t clear up

Question 7

If a rigid lens decenters off of the cornea

A. Gently massage the lens back to center through the lids
B. Gently place a fingernail under the lens and pop it off
C. Place a finger directly on the lens and slide it back on
D. Rotate with thumb and forefinger

Answer 7

Gently massage the lens back to center through the lids

Question 8

Thimersal is

A. Used in concentrations of from 1:5,000 to 1:100,000
B. A mild preservative with a low patient sensitivity ratio
C. Very effective against gram-negative organisms
D. Used in concentrations of from 1:400 to 1:1,000

Answer 8

Used in concentrations of from 1:5,000 to 1:100,000

Question 9

Straight wetting solutions are used to

A. Make rigid lens surfaces hydrophilic
B. Make rigid lens surfaces hydrophobic
C. Disinfect rigid lenses
D. Remove protein deposits

Answer 9

Make rigid lens surfaces hydrophilic

Question 10

Polyquad is

A. A substitute for papain
B. A high concentration antimicrobial agent
C. A substitute for pancreatin
D. Used as a disinfectant in some multipurpose solutions

Answer 10

Used as a disinfectant in some multipurpose solutions

Question 11

The FDA tests solutions for the effective microorganism kill ratio for _______ major groups of eye pathogens.

A. 4
B. 6
C. 8
D. 10

Answer 11

4

Question 12

Which is not a catalyst used in hydrogen peroxide systems?

A. Sodium pyruvate
B. Sodium sulfate
C. Sodium carbonate
D. Sodium thiosulfate

Answer 12

Sodium carbonate

Question 13

An advantage to heat disinfection is that

A. It is the most convenient disinfection method
B. It can be used on lenses of 55% water content
C. It entails the fewest steps
D. It can be used for patients with solution sensitivities

Answer 13

It can be used for patients with solution sensitivities

Question 14

Saline solutions should be buffered to a pH of approximately

A. 3.4
B. 5.4
C. 7.4
D. 8.4

Answer 14

7.4

Question 15

Patients who mix solutions may

A. Decrease irritation
B. Lower the pH of their lenses
C. Raise the pH of their lenses
D. Discolor their lenses

Answer 15

Discolor their lenses

Question 16

Subtilisin is

A. A multi-purpose disinfectant
B. A gram-negative rod
C. An enzyme
D. A gram-positive cocci

Answer 16

An enzyme

Question 17

A hydrophobic lens surface

A. Is water loving
B. Allows tears to spread evenly over it’s surface
C. Will fog up
D. Is preferred on a contact lens

Answer 17

Will fog up

Question 18

To improve patient compliance, you should

A. Give patients written instructions
B. Have patients watch a biofilm
C. Review care at the yearly visit if needed
D. Shorten the initial care instruction session

Answer 18

Give the patient written instructions

Question 19

Studies have shown that as high as ________% of compliant contact lens patients have contact lens cases that culture posititve.

A. 15
B. 42
C. 52
D. 75

Answer 19

42%

Question 20

The most common method of removal of rigid lenses is the __________ method.

A. Blink
B. Roll
C. Pinch
D. Dig

Answer 20

Blink

Question 21

Ingredients added to contact lens solutions to prevent them from spoilage after being opened are called

A. Preservatives
B. Disinfectants
C. Chelating agents
D. Buffering agents

Answer 21

Preservatives

Question 22

Agents that destroy, neutralize, or inhibit growth of pathogenic organisms on contact lenses are called

A. Preservatives
B. Disinfectants
C. Chelating agents
D. Buffering agents

Answer 22

Disinfectants

Question 23

Patients should clean lenses with a surfactant cleaner

A. Before insertion
B. After removal
C. On a weekly basis
D. Whenever they feel dirty

Answer 23

After removal

Question 24

The oxidation method of disinfecting soft lenses use

A. Heat
B. Hydrogen peroxide
C. Chlorhexidine
D. Subtilisin

Answer 24

Hydrogen peroxide