NCLE Review Questions
1. 1-2mm slit, med to high magnification, cross-sectional view of cornea, corneal clarity,
lens deposits, illumination system 45-50 degrees off:
2.
3. a. Indirect microscope, b. Paralellpiped Reflection, c. Sclerotic Scatter, d.
Retroillumination - ANS-B. Paralellpiped Reflection
4. 1-2mm slit, med to high magnification, fine lens deposits, subtle corneal imperfections,
corneal endothelium, illumination system is 30 degrees off:
5.
6. a. Optic Section, b. Diffuse Reflection, c. Specular Reflection, d. Paralellpiped Reflection
- ANS-C. Specular Reflection
7. 1-2mm slit, med to high magnification, light is reflected off an opaque structure behind
the area being viewed, corneal neo-vascularization, beams smaller than pupil, wide
swing illumination system- bright:
8.
9. a. Diffuse Reflection, b. Retroillumination, c. Specular Reflection, D. Indirect Microscope
- ANS-B. Retroillumination
10. 1-2mm slit, med to high magnification, view area adjacent to the slit. Opaque structures-
lids, sclera, conjunctiva, vascularization, pingueculae, pigmentation, illumination system
30-40 degrees off- bright:
11.
12. a. Indirect Reflection, b. Diffuse Reflection, c. Optic Section, d. Paralellpiped Reflection -
ANS-A. Indirect Reflection
13. 2-4mm slit, aimed at limbus from a wide angle, look for circumcorneal halo, view straight
ahead with no magnification, classic use is to view patch edema, corneal scars, incisions
& SCL edge lift:
14.
15. a. Retroillumination, b. Specular Reflection, c. Sclerotic Scatter, d.Indirect Reflection -
ANS-C. Sclerotic Scatter
16. A back toric lens works with:
17. a. residual astigmatism, b. high corneal toricity, c. low corneal toricity, d. spherical cornea
- ANS-B. High corneal toricity
18. A bifocal design that utilizes a small central reading area and a distance periphery is
called a:
19. a. translating bifocal, b. monovision, c. reverse centrad, d. alternating - ANS-C. Reverse
centrad
20. A contact lens in which the anterior surface contains two different radii of curvature and
the posterior surface is spherical is called a _______lens.
21. a. bitoric, b. front surface toric, c. back surface toric, d. bicurve lens - ANS-B. Front
surface toric
, 22. A contact lens measures 9.5mm. The optic zone is 8.1mm. What is the total width of the
peripheral curve system?
23. a. 1.4mm, b. 5mm, c. 9mm, d. .7mm - ANS-D. .7mm
24. 9.5-8.1 = 1.4 divided by 2 = .7
25. A cornea having its flattest meridian at 85 and steepest at 175 is said to have what type
of astigmatism?
26. a. with the rule, b. against the rule, c. oblique, d. asymmetrical - ANS-B. Against the rule
27. A farsighted person will feel lack of accommodation from presbyopia:
28. a. earlier with contacts, b. earlier with spectacles, c. simultaneously with contact lenses
and spectacles, d. not at all with contact lenses - ANS-B. Earlier with spectacles
29. A flatter curve is associated with a _______radius and a _______dioptric power.
30. a. longer/lower, b. longer/higher, c. shorter/lower, d. shorter/higher - ANS-A.
Longer/lower
31. A flourescein pattern which shows a touch apperance in the horizontal meridian and a
brighter green in the vertical meridian indicates that the patient has:
32. a. against the rule astigmatism, b. residual astigmatism, c. with the rule astigmatism, d.
oblique astigmatism - ANS-C. With the rule astigmatism
33. A fluorescesin pattern that shows a bright green in the center and bearing at the
periphery would indicate:
34. a. WTR pattern, b. Flat pattern, c. ATR pattern, d. Steep pattern - ANS-D. Steep pattern
35. A good example of a bifocal contact lens which may rotate without vision impairment is:
36. a. aspheric, b. executive, c. fused segment, d. translating - ANS-A. Aspheric
37. A hardening of the crystalline lens causing a loss of accommodation is known as:
38. a. presbyopia, b. myopia, c. hyperopia, d. aphakia - ANS-A. Presbyopia
39. A hyperflange lens is used on________
40. a. high minus lenses, b. high plus lenses, c. aphakic lenses, d. prism lenses - ANS-A.
High minus lenses
41. A hyperflange lens is used on______lenses:
42. a. high plus lenses, b. high minus lenses, c. aphakic lenses, d. minus lenticular - ANS-B.
High minus lenses
43. A late sign of Acanthamoeba Keratitis may include:
44. a. a ring shaped lesion, b. dendrite ulcer, c. disciform ulcer, d. none of these - ANS-A. A
ring shaped lesion
45. A lens has an overall diameter of 9.2mm. If the PIC/W is .2mm and the PPC/W is .4mm,
the POZ is:
46. a. 7.5mm, b. 8.0mm, c. 7.0mm, d. 8.2mm - ANS-B. 8.0mm
47. A lens has an overall diameter of 9.5mm. If the PIC/W is .2mm and the PPC/W is .4mm,
the POZ is:
48. a. 7.5mm, b. 8.0mm, c. 7.0mm, d. 8.3mm - ANS-D. 8.3mm
49. A lenticular lens has the following characteristics:
50. a. reduces thickness, b. reduces weight, c. power only in central area, d. all of the above
- ANS-D. All of the above
51. A low riding high plus lens could be corrected with:
52. a. a myoflange, b. a hyperflange, c. a panafocal, d. a c-n bevel - ANS-A. A Myoflange
1. 1-2mm slit, med to high magnification, cross-sectional view of cornea, corneal clarity,
lens deposits, illumination system 45-50 degrees off:
2.
3. a. Indirect microscope, b. Paralellpiped Reflection, c. Sclerotic Scatter, d.
Retroillumination - ANS-B. Paralellpiped Reflection
4. 1-2mm slit, med to high magnification, fine lens deposits, subtle corneal imperfections,
corneal endothelium, illumination system is 30 degrees off:
5.
6. a. Optic Section, b. Diffuse Reflection, c. Specular Reflection, d. Paralellpiped Reflection
- ANS-C. Specular Reflection
7. 1-2mm slit, med to high magnification, light is reflected off an opaque structure behind
the area being viewed, corneal neo-vascularization, beams smaller than pupil, wide
swing illumination system- bright:
8.
9. a. Diffuse Reflection, b. Retroillumination, c. Specular Reflection, D. Indirect Microscope
- ANS-B. Retroillumination
10. 1-2mm slit, med to high magnification, view area adjacent to the slit. Opaque structures-
lids, sclera, conjunctiva, vascularization, pingueculae, pigmentation, illumination system
30-40 degrees off- bright:
11.
12. a. Indirect Reflection, b. Diffuse Reflection, c. Optic Section, d. Paralellpiped Reflection -
ANS-A. Indirect Reflection
13. 2-4mm slit, aimed at limbus from a wide angle, look for circumcorneal halo, view straight
ahead with no magnification, classic use is to view patch edema, corneal scars, incisions
& SCL edge lift:
14.
15. a. Retroillumination, b. Specular Reflection, c. Sclerotic Scatter, d.Indirect Reflection -
ANS-C. Sclerotic Scatter
16. A back toric lens works with:
17. a. residual astigmatism, b. high corneal toricity, c. low corneal toricity, d. spherical cornea
- ANS-B. High corneal toricity
18. A bifocal design that utilizes a small central reading area and a distance periphery is
called a:
19. a. translating bifocal, b. monovision, c. reverse centrad, d. alternating - ANS-C. Reverse
centrad
20. A contact lens in which the anterior surface contains two different radii of curvature and
the posterior surface is spherical is called a _______lens.
21. a. bitoric, b. front surface toric, c. back surface toric, d. bicurve lens - ANS-B. Front
surface toric
, 22. A contact lens measures 9.5mm. The optic zone is 8.1mm. What is the total width of the
peripheral curve system?
23. a. 1.4mm, b. 5mm, c. 9mm, d. .7mm - ANS-D. .7mm
24. 9.5-8.1 = 1.4 divided by 2 = .7
25. A cornea having its flattest meridian at 85 and steepest at 175 is said to have what type
of astigmatism?
26. a. with the rule, b. against the rule, c. oblique, d. asymmetrical - ANS-B. Against the rule
27. A farsighted person will feel lack of accommodation from presbyopia:
28. a. earlier with contacts, b. earlier with spectacles, c. simultaneously with contact lenses
and spectacles, d. not at all with contact lenses - ANS-B. Earlier with spectacles
29. A flatter curve is associated with a _______radius and a _______dioptric power.
30. a. longer/lower, b. longer/higher, c. shorter/lower, d. shorter/higher - ANS-A.
Longer/lower
31. A flourescein pattern which shows a touch apperance in the horizontal meridian and a
brighter green in the vertical meridian indicates that the patient has:
32. a. against the rule astigmatism, b. residual astigmatism, c. with the rule astigmatism, d.
oblique astigmatism - ANS-C. With the rule astigmatism
33. A fluorescesin pattern that shows a bright green in the center and bearing at the
periphery would indicate:
34. a. WTR pattern, b. Flat pattern, c. ATR pattern, d. Steep pattern - ANS-D. Steep pattern
35. A good example of a bifocal contact lens which may rotate without vision impairment is:
36. a. aspheric, b. executive, c. fused segment, d. translating - ANS-A. Aspheric
37. A hardening of the crystalline lens causing a loss of accommodation is known as:
38. a. presbyopia, b. myopia, c. hyperopia, d. aphakia - ANS-A. Presbyopia
39. A hyperflange lens is used on________
40. a. high minus lenses, b. high plus lenses, c. aphakic lenses, d. prism lenses - ANS-A.
High minus lenses
41. A hyperflange lens is used on______lenses:
42. a. high plus lenses, b. high minus lenses, c. aphakic lenses, d. minus lenticular - ANS-B.
High minus lenses
43. A late sign of Acanthamoeba Keratitis may include:
44. a. a ring shaped lesion, b. dendrite ulcer, c. disciform ulcer, d. none of these - ANS-A. A
ring shaped lesion
45. A lens has an overall diameter of 9.2mm. If the PIC/W is .2mm and the PPC/W is .4mm,
the POZ is:
46. a. 7.5mm, b. 8.0mm, c. 7.0mm, d. 8.2mm - ANS-B. 8.0mm
47. A lens has an overall diameter of 9.5mm. If the PIC/W is .2mm and the PPC/W is .4mm,
the POZ is:
48. a. 7.5mm, b. 8.0mm, c. 7.0mm, d. 8.3mm - ANS-D. 8.3mm
49. A lenticular lens has the following characteristics:
50. a. reduces thickness, b. reduces weight, c. power only in central area, d. all of the above
- ANS-D. All of the above
51. A low riding high plus lens could be corrected with:
52. a. a myoflange, b. a hyperflange, c. a panafocal, d. a c-n bevel - ANS-A. A Myoflange
