Contact Lens Delivery Procedures Flashcards
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
Adaptive symptoms
When expalining care procedures to patients, they hear about ________% of what you say.
A. 25
B. 50
C. 75
D. 85
25%
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
All of the Above
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
A way to tell if the soft lens is inverted
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
Decrease in visual acuity
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
Redness of the eye that doesn’t clear up
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
Gently massage the lens back to center through the lids
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
Used in concentrations of from 1:5,000 to 1:100,000
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
Make rigid lens surfaces hydrophilic
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
Used as a disinfectant in some multipurpose solutions
The FDA tests solutions for the effective microorganism kill ratio for _______ major groups of eye pathogens.
A. 4
B. 6
C. 8
D. 10
4
Which is not a catalyst used in hydrogen peroxide systems?
A. Sodium pyruvate
B. Sodium sulfate
C. Sodium carbonate
D. Sodium thiosulfate
Sodium carbonate
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
It can be used for patients with solution sensitivities
Saline solutions should be buffered to a pH of approximately
A. 3.4
B. 5.4
C. 7.4
D. 8.4
7.4
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
Discolor their lenses
Subtilisin is
A. A multi-purpose disinfectant
B. A gram-negative rod
C. An enzyme
D. A gram-positive cocci
An enzyme
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
Will fog up
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
Give the patient written instructions
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
42%
The most common method of removal of rigid lenses is the __________ method.
A. Blink
B. Roll
C. Pinch
D. Dig
Blink
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
Preservatives
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
Disinfectants
Patients should clean lenses with a surfactant cleaner
A. Before insertion
B. After removal
C. On a weekly basis
D. Whenever they feel dirty
After removal
The oxidation method of disinfecting soft lenses use
A. Heat
B. Hydrogen peroxide
C. Chlorhexidine
D. Subtilisin
Hydrogen peroxide
