NCLE Prep Exam Part 1 of 4
1. A normal tear break up time (BUT) is:
2.
3. A. 6-7 seconds
4. B. 10-12 seconds
5. C. Less than 5 seconds
6. D. None of the above - ANS-B. Typically flourescein will remain on the cornea for 10-12
seconds before it begins to break-up and dry spots appear. Less than seven seconds is
considered a short break up time and may limit the success of contact lens fitting
7. A patient wearing a high horizontal prismatic correction for a motility problem:
8.
9. A. Will be able to have the same amount of prism added to the contact lens to control
their strabismus
10. B. May experience diplopia when fit with contact lenses
11. C. VAR probably not need any prismatic correction with contact lenses since thy directly
on the eye
12. D. May develop nystagmus with contact lenses unless the prism is added - ANS-B. May
experience diplopia when fit with contact lenses
13. A pre-presbyopic myopic patient who is still able to read with single vision glasses may
find that:
14.
15. A. They are unable to see fine print when fir with contact lenses
16. B. If the vertex distance is reduced, near vision will be clearer
17. C. Monovision is impossible to adapt to
18. D. It is even more difficult to see the computer than to read with contact lenses contain
their distance prescription - ANS-A. They are unable to see fine print when fit with
contact lenses
19. A whitish haze in the peripheral corneal stroma which does not stain and is often seen in
the elderly is known as:
20.
21. A. Neovascularization
22. B. Dellen
23. C. Arcus Senilus
24. D. Fuch's Dystrophy - ANS-C. Arcus Senilus
25.
26. Consist of cholesterol deposit in the corneal periphery
27. Amy's +8.50 D spectacles sit 12mm from the cornea. The power of a soft contact lens for
Amy, properly vertexed would be:
28.
29. A. +8.00
, 30. B. +8.50
31. C. +9.50
32. D. +11.00 - ANS-C. +9.50
33.
34. Vertex distance must be taken into account when spectacle power is +4.00D
35. An instrument used to evaluate corneal irregularity by reflecting concentric circle from
the patient's cornea is called a:
36.
37. A. Burton lamp
38. B. Con-Ta-Chek
39. C. Topogometer
40. D. Placido disk - ANS-D. Placido disk
41.
42. A burton lamp evaluates fluorescein patterns in the absence of a slit lamp. A
Con-Ta-Chek is an attachment to the keratometer that enables one to read the base
curve in the absence of a radiuscope. A topogometer is also an attachment for the
keratometer and is used to define the corneal apex
43. If the manufacturer's guidelines suggest a minimum of 4 hours for disinfection, what
would you suggest to the patient?
44. A. Never leave lenses in disinfectant overnight
45. B. 2 to 3 hours is probably enough
46. C. Use surfactant cleaner and preserved saline
47. D. A minimum of 4 hours is required - ANS-D. Minimum of 4 hours required
48.
49. Patients should always be directed to follow the manufacturer's guidelines and not try to
cut corners by leaving lenses in any solution for less than the recommended time.
50. In a Schirmer 1 Test:
51.
52. A. The patient should produce sufficient tears to saturate the paper strip in 3 minutes
53. B. An anesthetic drop is instilled in the eye to eliminate reflex tearing
54. C. Fluorescein must be instilled in the eye to measure tear film
55. D. A patient with an unanesthetized eye and normal tear output should wet at least
15mm of the filter paper in 5 minutes - ANS-D.
56.
57. The Schirmer 1 test is done without anesthesia and a patient with normal tear output
should wet at least 15mm of the strip in 5 minutes.
58. In a Schirmer 2 test:
59.
60. A. Break-up time must be at least 10 seconds if a patient is to be a successful contact
lens wearer
61. B. An anesthetic drop is instilled before the Schirmer strip is inserted to eliminate the
reflex tearing caused by the filter paper
62. C. A normal reading guarantees that the patient is producing sufficient tears for
successful contact lens wear
1. A normal tear break up time (BUT) is:
2.
3. A. 6-7 seconds
4. B. 10-12 seconds
5. C. Less than 5 seconds
6. D. None of the above - ANS-B. Typically flourescein will remain on the cornea for 10-12
seconds before it begins to break-up and dry spots appear. Less than seven seconds is
considered a short break up time and may limit the success of contact lens fitting
7. A patient wearing a high horizontal prismatic correction for a motility problem:
8.
9. A. Will be able to have the same amount of prism added to the contact lens to control
their strabismus
10. B. May experience diplopia when fit with contact lenses
11. C. VAR probably not need any prismatic correction with contact lenses since thy directly
on the eye
12. D. May develop nystagmus with contact lenses unless the prism is added - ANS-B. May
experience diplopia when fit with contact lenses
13. A pre-presbyopic myopic patient who is still able to read with single vision glasses may
find that:
14.
15. A. They are unable to see fine print when fir with contact lenses
16. B. If the vertex distance is reduced, near vision will be clearer
17. C. Monovision is impossible to adapt to
18. D. It is even more difficult to see the computer than to read with contact lenses contain
their distance prescription - ANS-A. They are unable to see fine print when fit with
contact lenses
19. A whitish haze in the peripheral corneal stroma which does not stain and is often seen in
the elderly is known as:
20.
21. A. Neovascularization
22. B. Dellen
23. C. Arcus Senilus
24. D. Fuch's Dystrophy - ANS-C. Arcus Senilus
25.
26. Consist of cholesterol deposit in the corneal periphery
27. Amy's +8.50 D spectacles sit 12mm from the cornea. The power of a soft contact lens for
Amy, properly vertexed would be:
28.
29. A. +8.00
, 30. B. +8.50
31. C. +9.50
32. D. +11.00 - ANS-C. +9.50
33.
34. Vertex distance must be taken into account when spectacle power is +4.00D
35. An instrument used to evaluate corneal irregularity by reflecting concentric circle from
the patient's cornea is called a:
36.
37. A. Burton lamp
38. B. Con-Ta-Chek
39. C. Topogometer
40. D. Placido disk - ANS-D. Placido disk
41.
42. A burton lamp evaluates fluorescein patterns in the absence of a slit lamp. A
Con-Ta-Chek is an attachment to the keratometer that enables one to read the base
curve in the absence of a radiuscope. A topogometer is also an attachment for the
keratometer and is used to define the corneal apex
43. If the manufacturer's guidelines suggest a minimum of 4 hours for disinfection, what
would you suggest to the patient?
44. A. Never leave lenses in disinfectant overnight
45. B. 2 to 3 hours is probably enough
46. C. Use surfactant cleaner and preserved saline
47. D. A minimum of 4 hours is required - ANS-D. Minimum of 4 hours required
48.
49. Patients should always be directed to follow the manufacturer's guidelines and not try to
cut corners by leaving lenses in any solution for less than the recommended time.
50. In a Schirmer 1 Test:
51.
52. A. The patient should produce sufficient tears to saturate the paper strip in 3 minutes
53. B. An anesthetic drop is instilled in the eye to eliminate reflex tearing
54. C. Fluorescein must be instilled in the eye to measure tear film
55. D. A patient with an unanesthetized eye and normal tear output should wet at least
15mm of the filter paper in 5 minutes - ANS-D.
56.
57. The Schirmer 1 test is done without anesthesia and a patient with normal tear output
should wet at least 15mm of the strip in 5 minutes.
58. In a Schirmer 2 test:
59.
60. A. Break-up time must be at least 10 seconds if a patient is to be a successful contact
lens wearer
61. B. An anesthetic drop is instilled before the Schirmer strip is inserted to eliminate the
reflex tearing caused by the filter paper
62. C. A normal reading guarantees that the patient is producing sufficient tears for
successful contact lens wear
