Quiz For Soft Contact Lenses – Fitting, Choice, Assessment and Troubleshooting – Optical Training Institute

Quiz For Soft Contact Lenses – Fitting, Choice, Assessment and Troubleshooting

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Question 1 of 40

1. Question
1 point(s)
Techniques for soft lens evaluation include the characteristics of:
1. lens centration
2. corneal coverage
3. lens movement
4. visual acuity
- 1 only
- 1 & 2
- 1, 2, & 3
- 1, 2, 3 & 4
Correct

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Question 2 of 40

2. Question
1 point(s)
An optimal soft lens fit is:
1 well positioned
2. centered
3. moves without hesitation
4. requires no maintenance
- 1 only
- 1 & 2
- 1, 2, & 3
- 1, 2, 3, & 4
Correct

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Question 3 of 40

3. Question
1 point(s)
________________have a life span greater than 6 months and preferably are replaced at intervals of no greater than one year.
- Conventional lenses
- Frequent replacement lenses
- Disposable lenses
- Daily wear lenses
Correct

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Question 4 of 40

4. Question
1 point(s)
________________have a life span of 1-3 months after which the lens is discarded and replaced.
- Conventional lenses
- Frequent replacement lenses
- Disposable lenses
- Daily wear lenses
Correct

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Question 5 of 40

5. Question
1 point(s)
________________have a life span of one day up to one or two weeks, after which the lens is discarded or replaced.
- Conventional lenses
- Frequent replacement lenses
- Planned replacement or flexible wear
- Daily wear lenses
Correct

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Question 6 of 40

6. Question
1 point(s)
________________implies that a lens can be worn throughout the day but must be removed prior to sleeping.
- Conventional lenses
- Frequent replacement lenses
- Disposable lenses
- Daily wear lenses
Correct

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Question 7 of 40

7. Question
1 point(s)
________________can be worn throughout the day and night for a maximum of 7 days without lens removal.
- Conventional lenses
- Frequent replacement lenses
- Extended wear lenses
- Daily wear lenses
Correct

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Question 8 of 40

8. Question
1 point(s)
____________________is the primary material used in soft contact lenses.
- PMMA
- Hydrogel
- Silicone
- Cellulose acetate buterate (CAB)
Correct

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Question 9 of 40

9. Question
1 point(s)
Hydrogel material is classified as being:
- hydrophobic
- hydrophilic
- gas permeable
- extended wear
Correct

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Question 10 of 40

10. Question
1 point(s)
Hydrogel lenses are classified by the following two characteristics:
- hydrophobic and hydrophilic
- extended wear and daily wear
- ionic character and water content
- RGP and gas permeable
Correct

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Question 11 of 40

11. Question
1 point(s)
______________lenses require regular disinfection.
1. Daily wear
2. Flexible wear
3. Extended wear
4. Daily disposable
- 1 only
- 1 & 2
- 1, 2, & 3
- 1, 2, 3, & 4
Correct

Incorrect
Question 12 of 40

12. Question
1 point(s)
The type of soft lens selected is based upon:
1. patient education
2. a detailed interview with the patient
3. the patient’s budget
4. all soft lenses are the same
- 1 only
- 1 & 2
- 1, 2, & 3
- 1, 2, 3, & 4
Correct

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Question 13 of 40

13. Question
1 point(s)
The most important technique the patient must learn is the:
- lens removal technique
- lens insertion technique
- lens rinsing technique
- cosmetic application
Correct

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Question 14 of 40

14. Question
1 point(s)
The base curve of the lens is traditionally based upon:
- the lens material
- the lens type
- the lens power
- the keratometric value of the central cornea
Correct

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Question 15 of 40

15. Question
1 point(s)
Lens placement technique for rigid lenses is:
- more easily learned than that for soft lenses
- more difficult to learn than inserting soft lenses
- similar to that taught for soft lenses
- completely different than that taught for soft lenses
Correct

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Question 16 of 40

16. Question
1 point(s)
Hydrophilic lens base curves range from:
- 8.5 to 8.8 mm
- 9.5 to 10.3 mm
- 8.0 to 9.2 mm
- 7.5 to 8.3 mm
Correct

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Question 17 of 40

17. Question
1 point(s)
The majority of fits will be successful using base curves ranging from:
- 8.5 to 8.8 mm
- 9.5 to 10.3 mm
- 8.0 to 9.2 mm
- 7.5 to 8.3 mm
Correct

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Question 18 of 40

18. Question
1 point(s)
Soft lens power selection is based upon:
- the manifest refraction with compensation for vertex distance
- the power of the tear lens
- the lens material
- base curve selection
Correct

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Question 19 of 40

19. Question
1 point(s)
Spherical equivalent can be calculated as:
- half the sphere added to the cylinder power
- a function of the base curve
- half the cylinder added to the sphere power
- none of the above
Correct

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Question 20 of 40

20. Question
1 point(s)
The following are two methods of diagnostic lens fits.
1. bilateral same lens
2. individual same lens
3. bilateral comparative lens
4. individual comparative lens
- 1 only
- 1 & 2
- 1 & 3
- 2 & 4
Correct

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Question 21 of 40

21. Question
1 point(s)
In the ______________________________method a different lens design is placed on each eye and compared.
- bilateral
- individual
- bilateral comparative
- individual comparative
Correct

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Question 22 of 40

22. Question
1 point(s)
Hydrophilic lens diameters range from:
- 7.0 to 10.5 mm
- 13.8 to 14.5 mm
- 12.5 to 16.0 mm
- 10.0 to 11.0 mm
Correct

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Question 23 of 40

23. Question
1 point(s)
___________________________defines the position of the hydrogel lens in relation to the corneal diameter.
- Base curve
- Lens coverage
- Lens movement
- Lens centration
Correct

Incorrect
Question 24 of 40

24. Question
1 point(s)
Primary gaze movement is measured___________________________________.
- after the lens has settled following each blink
- immediately prior to each blink
- after the patient looks to the left and right
- just prior to the push-up test
Correct

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Question 25 of 40

25. Question
1 point(s)
The ____________________________test is considered the most reliable test for determining the adequacy of the hydrogel lens fit.
- primary gaze
- lateral movement
- push-up
- vertical movement
Correct

Incorrect
Question 26 of 40

26. Question
1 point(s)
The overall lens fit can be rated as acceptable
- if there is partial corneal coverage with an optimal range of lens movement
- if there is complete corneal coverage with an optimal range of lens movement
- if there is complete corneal coverage with excessive lens movement
- none of the above are acceptable
Correct

Incorrect
Question 27 of 40

27. Question
1 point(s)
The spherocylindrical over-refraction is performed:
- while the patient views the 20/20 line on the Snellen chart
- while the patient views the 20/200 line on the Snellen chart
- while the patient views their best line of achievable visual acuity
- while the far point is blurred
Correct

Incorrect
Question 28 of 40

28. Question
1 point(s)
Insertion & removal training is not necessary:
- if the patient has proven he/she can successfully insert and remove a lens
- if the patient has worn contact lenses in the past
- when fitting "disposable" lenses
- when fitting extended wear lenses
Correct

Incorrect
Question 29 of 40

29. Question
1 point(s)
First time soft contact lens wearers should wear their lenses a maximum of ____________hours per day before returning to the office for a follow-up visit.
- 2
- 4
- 6
- 8
Correct

Incorrect
Question 30 of 40

30. Question
1 point(s)
During the initial aftercare visit patient should____________________.
- be questioned about their comfort level with lens insertion and removal
- be asked to demonstrate the proper method of lens care
- be surveyed on general handling characteristics such as determination of inversion, ease of removal, general comfort
- all of the above
Correct

Incorrect
Question 31 of 40

31. Question
1 point(s)
In which original FDA classification group would you find a low-water, non-ionic lens?
- Group One
- Group Two
- Group Three
- Group Four
Correct

Incorrect
Question 32 of 40

32. Question
1 point(s)
How can a contact lens material be enhanced to better mimic some of the body’s natural biological process?
- Polymerization
- Biomimesis
- Stabilization
- Sterilization
Correct

Incorrect
Question 33 of 40

33. Question
1 point(s)
Why would a contact lens manufacturer add PVP to the matrix of a soft lens
- Better lens shape retention
- Increased ionic cohesion
- Increased water content
- Increased thickness
Correct

Incorrect
Question 34 of 40

34. Question
1 point(s)
What is wrong with this contact lens prescription: OD = Acuvue Advance – 4.00 8.7 14.0 / OS = Avaira –12.00 8.5 14.2 ?
- These lenses are not replaced at the same time interval
- The powers are too far apart
- The diameters do not match
- Nothing, the doctor is prescribing different lenses due to patient need
Correct

Incorrect
Question 35 of 40

35. Question
1 point(s)
A patient’s spectacle Rx is -5.00 d.s. ou. What is correct regarding contact lenses for this patient?
- The contact lenses will be the same
- The contact lenses will be slightly weaker
- The contact lenses will be slightly stronger
- This patient should not have contact lenses
Correct

Incorrect
Question 36 of 40

36. Question
1 point(s)
Your patient asks to purchase some Halloween design lenses, but does not have a prescription. The correct action is:
- Order the lenses since they are just plano power
- Order the lenses but do not dispense them until the patient brings a prescription
- Do not order the lenses
- Have the patient return with a written prescription and then order the lenses
Correct

Incorrect
Question 37 of 40

37. Question
1 point(s)
A soft contact lens label might include a lot number. What is a potential use for this number?
- Identifying and removing any contact lenses that are being recalled
- Finding the SKU number for appropriate shelving
- Keeping accurate inventory levels
- Locating the lens listing in a catalog
Correct

Incorrect
Question 38 of 40

38. Question
1 point(s)
Your patient brings in contact lenses in vials that were manufactured in another country. Can you refill for the patient?
- Yes, just find the matching U.S. brand
- Yes, just match the base curve and water content
- No, the patient needs to have a current, written prescription for contact lenses
- None of the above
Correct

Incorrect
Question 39 of 40

39. Question
1 point(s)
Which is not needed during a typical patient history and physical in order to fit contact lenses?
- A schirmer test
- Medical history
- The patient’s spectacle Rx
- Current blood pressure
Correct

Incorrect
Question 40 of 40

40. Question
1 point(s)
Can the pH of a soft contact lens change the fit?
- No, it is set into the matrix
- Yes, solutions and the patient’s own tears can change it
- No, the pH stays the same as the solution it soaked in
- pH is not important to the wear of contact lenses
Correct

Incorrect

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