Download ABO American Board of Opticianry 2025-2026 ABO Certification Basic Exam Prep Practi and more Exams Ophthalmology in PDF only on Docsity!
National Certification Organization
for Opticians
ABO American Board of Opticianry
Basic ABO Certification Exam
Course Title and Number: Basic ABO Certification Exam Exam Title: Certification Exam Exam Date: Exam 2025- 2026 Instructor: [Insert Instructor’s Name] Student Name: [Insert Student’s Name] Student ID: [Insert Student ID]
Examination
180 minutes
Instructions:
- Read each question carefully.
- Answer all questions.
- Use the provided answer sheet to mark your responses.
- Ensure all answers are final before submitting the exam.
- Please answer each question below and click Submit when you have completed the Exam.
- This test has a time limit, The test will save and submit automatically when the time expires
- This is Exam which will assess your knowledge on the course Learning Resources.
Good Luck!
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ABO American Board of Opticianry 2025- ABO Certification Basic Exam Prep Practice Test Questions and Answers | 100% Pass Guaranteed | Graded A+ |
Read All Instructions Carefully and Answer All the
Questions Correctly Good Luck: -
1. When a patient walks into your office you should:
a. greet them
b. tell them to wait a minute
c. ignore them
d. wait for them to approach you: a. greet them
2. A patient tells you that he has the sensation of
walking uphill. What might you suspect?
a. base up prism
b. base down prism
c. base in prism
d. base out prism: b. base down prism
3. A myopic patient has chosen a 54 16 frame. The
patient's PD is OD 32, OS
- How much decentration would these lenses require and in what direction?
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c. 2 ³
d. 0.02 ³: c. 2 ³
9. What is the amount and direction of the induced
prism when a -3.00 D lens is decentered out 3mm?
a. 9 ³ BO
b. 9 ³ BI
c. 0.9 ³ BO
d. 0.9 ³ B:I d. 0.9 ³ BI
10. Transpose the following prescription:
+1.75 +0.75 x 180: +2.50 -0.75 x 090
11. Transpose the following prescription:
+1.25 +1.00 x 160: +2.25 -1.00 x 070
12. Transpose the following prescription:
-0.25 +1.25 x 075: +1.00 -1.25 x 165
13. Transpose the following prescription:
-1.00 +1.50 x 170: +0.50 -1.50 x 080
14. Transpose the following prescription:
+0.25 +2.25 x 040: +2.50 -2.25 x 130
15. Transpose the following prescription:
-2.00 +4.00 x 035: +2.00 -4.00 x 125
16. Convert the following prescription to a reading
only prescription: -1.00 -0.75 x 050 / +2.00 add: +1.00 -0.75 x 050
17. Convert the following prescription to a reading
only prescription: -0.25 -1.00 x 140 / +2.00 add: +1.75 -1.00 x 140
18. Convert the following prescription to a reading
only prescription: +1.25 -1.25 x 068/ +1.75 add: +3.00 -1.25 x 068
19. Convert the following prescription to a reading
only prescription: +1.75 -0.75 x 034 / +1.75 add: +3.50 -0.75 x 034
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20. Determine the following lens power by using
the lensometer: First reading: +2. Second reading: -1. Axis reading: 180: +2.00 -3.00 x 180
21. Determine the following lens power by using
the lensometer: First reading: -2. Second reading: -4. Axis reading: 180: -2.25 -2.00 x 065
22. Determine the following lens power by using
the lensometer: First reading: +2. Second reading: +3.00: +2.00 / +1.00 add
23. Determine the following lens power by using
the lensometer: First reading: +1. Second reading: -0. Axis reading: 125 Add reading: +3.25: +1.25 -2.00 x 125 / +2.00 add
24. Determine the following lens power by using
the lensometer: First reading: -2. Second reading: -4. Axis reading: 085 Add reading: -1.25: -2.50 -1.50 x 085 / +1.25 add
25. Rx: +2.00 -0.25 x 180
+2.25 -1.25 x 180 / +2.25 add Final verification results: +2.00 -0.25 x 178 +2.25 -1.00 x 177 / +2.25 add In the above rx, would you need to:
a. remake OD lens
b. remake OS lens
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🤔 Hybridgrades101@gmail.com -1.50 -1.00 x 085 / +1.25 add Final verification results: -1.25 -1.25 x 091 -1.50 -1.12 x 084 / +1.50 add In the right lens, you are remaking because:
a. sphere power is wrong
b. add power is wrong
c. axis is wrong
d. not remaking right lens: b. add power is wrong
30. Rx: -1.25 -1.25 x 090
-1.50 -1.00 x 085 / +1.25 add Final verification results: -1.25 -1.25 x 091 -1.50 -1.12 x 084 / +1.50 add In the left lens, you are remaking because:
a. add power is wrong
b. cylinder power is wrong
c. axis is wrong
d. not remaking left lens: a. add power is wrong
31. What is the term used to refer to a minus
cylinder axis located near 90°?
a. "with motion"
b. "against the rule"
c. "against motion"
d. "with the rule": b. "against the rule"
32. The radius of curvature of a 0.50 D lens is:
a. 530mm
b. 2120mm
c. 265cm
d. 1060mm: d. 1060mm
33. Use the lens cross to determine the power at
059 in this example: +5.
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a. +0.62 D
b. +5.75 D
c. +3.50 D
d. -6.50 D: c. +3.50 D
34. The total power of a lens having a front surface
curve of +3.00 and a back surface curve of -6.50 is:
a. -3.50 D
b. +3.00 D
c. +3.50 D
d. -6.50 D: a. -3.50 D
35. What percentage of the total cylinder power is
located 45° from the axis?
a. 100%
b. 45%
c. 0%
d. 50%: d. 50%
36. At what axis must the power be determined the
measure prismatic effect relative to PD?
a. 180
b. 90
c. 45
d. specified axis: a. 180
37. At what axis must the power be determined to
measure prismatic effect relative to reading imbalance?
a. 45
b. specified axis
c. 180
d. 90: d. 90
38. If a prescription is -2.00 +1.00 x 030, calculate
the percentage of cylinder power present at axis 30:
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46. A +3.00 D lens decentered 3mm too much in
the horizontal meridian will create ³:. 0.9³
47. How much prism is created if the following
prescription is decentered outward by 3mm too much? Rx: -2.00 -2.00 x 030: 0.75³BI
48. To create 2³, how far must the following
prescription be decentered in the horizontal meridian? Rx: +3.25 -1.00 x 060 mm: 8mm
49. If a -1.00 -1.00 x 030 lens is moved down 3mm
from its primary position, it will create ³ base :. 0.525³BU
50. How much prism and what base direction will
be created if the following prescription is decentered out 3mm? Rx: +2.00 +3.00 x 045: 1.05³BO
51. It is important to take a monocular PD when
fitting:
a. single vision lenses
b. lined bifocals
c. lined trifocals
d. progressives: d. progressives
52. Occlude one eye when using the pupilometer to
measure for:
a. bifocal lenses
b. single vision lenses
c. trifocal lenses
d. progressive lenses: d. progressive lenses
53. When measuring for a first-time bifocal wearer,
the segment is usually placed:
a. mid-pupil
b. lower lid margin
c. lower pupil
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d. between lid margin and pupil: b. lower lid margin
54. It is important to pre-adjust a frame:
a. before taking measurements
b. only on bifocal wearers
c. only on progressive wearers
d. it's not important: a. before taking measurements
55. Which is NOT important when measuring for a
progressive lens?
a. binocular PD
b. patient's posture
c. pre-adjusting frame
d. centration chart: a. binocular PD
56. Specify an optical center (OC) height when
fitting:
a. polycarbonate lenses
b. hi-index lenses
c. progressives
d. all of the above: d. all of the above
57. When fitting a satisfied current bifocal wearer
with a new bifocal, you should:
a. fit lower lid
b. fit mid pupil
c. fit at current bifocal height
d. fit lower pupil: c. fit at current bifocal height
58. Ask questions of patients because:
a. you're nosy
b. you want a new friend
c. it will help to determine lens needs
d. you have some extra time: c. it will help to determine
lens needs
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a. bent slightly inward
b. bent slightly outward
c. open and equal
d. bent to a 90 degree angle: c. open and equal
65. When learning to adjust it is important to:
a. observe other dispensers
b. practice, practice, practice
c. consider patient comfort
d. all of the above: d. all of the above
66. Proper pantoscopic tilt is normally:
a. 15-20 degrees inward
b. 15-20 degrees outward
c. 7-12 degrees inward
d. 10-12 degrees outward: c. 7-12 degrees inward
67. Face form refers to:
a. the front curve of a frame
b. the front angle of a frame
c. the distance from the eye
d. the temple length: a. the front curve of a frame
68. To properly adjust the temples of a frame,
check:
a. the frontal angle
b. the temple bend
c. the face form
d. pantoscopic tilt: b. the temple bend
69. To pre-adjust a frame for a patient:
a. start with the temples
b. start with the nose pads
c. start with the frame front
d. start where you choose: c. start with the frame front
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70. When adjusting nose pads it is important to
consider:
a. splay angle
b. nose pad length
c. bridge style
d. giving up: a. splay angle
71. Identify the frame parts.: A. eyewire
B. nose pad
C. hinge
D.temple
E. bridge
F. endpiece
72. Match the following words with their definition:
Zyl supports frame DBL strong, lightweight material ED effective diameter Titanium horizontal measurement Temple distance between lenses "A" measurement plastic: Zyl plastic DBL ----------------- distance between lenses ED ------------------- effective diameter Titanium ------------- strong, lightweight material Temple -------------- supports frame "A" measurement ---- horizontal measurement
73. and are important considerations in frame
styling.: frame construction; facial shape
74. provide the flexibility to conform the
bridge of the frame to a patient's nose.: adjustable nose pads
75. The first step in contact lens insertion is to:
a. check for rips or tears
b. check to see if inside out
c. wash hands thoroughly
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81. RGP lenses are:
a. soft and flexible
b. more comfortable
c. rigid
d. good eye protection: c. rigid
82. If a patient has difficulty inserting contact
lenses:
a. they should quit trying
b. their finger may be too wet
c. they should be left alone
d. the doctor should be called in: b. their finger may be
too wet
83. True or False:
Personal hygiene is not important when dealing with contact lenses.: False
84. True or False:
The patient should only use recommended solutions and drops with con- tacts.: True
85. The term for the refractive condition where
light comes to a focus directly on the retina:
a. hyperopia
b. myopia
c. emmetropia
d. astigmatism: c. emmetropia
86. The term for the refractive condition where
light comes to a focus behind the retina:
a. hyperopia
b. myopia
c. emmetropia
d. astigmatism: a. hyperopia
87. The term for the refractive condition where
light comes to focus in front of the retina:
a. hyperopia
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b. myopia
c. emmetropia
d. astigmatism: b. myopia
88. The term for the refractive condition where
light comes to a focus on two different points:
a. hyperopia
b. myopia
c. emmetropia
d. astigmatism: d. astigmatism
89. The onset of presbyopia generally begins at
age:
a. 40
b. 45
c. 50
d. 55: a. 40
90. When the eye has a tendency to turn from it's
normal position it is called:
a. tropia
b. exotropia
c. phoria
d. exophoria: c. phoria
91. Astigmatism means that the patient's cornea
is:
a. clear
b. misshapen
c. cloudy
d. round: b. misshapen
92. Aqueous humor is produced by the:
a. ciliary body
b. choroid
c. cholera
d. canal of schlemm: a. ciliary body
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98. A lens has a front surface power of +2.00 D and
a back surface power of -8.25 D. The corrective power is:
a. -8.25 D
b. -5.75 D
c. +2.00 D
d. -6.25 D: d. -6.25 D
99. Using the prescription +2.00 -1.50 x 045, what
is the power of the lens at the 90th meridian?
a. +0.
b. +2.
c. +1.
d. -0.50: c. +1.
100. How much cylinder power is in effect at the
specified axis?
a. 0%
b. 25%
c. 50%
d. 100%: a. 0%
101. How much cylinder power is in effect 90
degrees away from the specified axis?
a. 0%
b. 50%
c. 50%
d. 100%: d. 100%
102. A plus lens:
a. diverges light
b. converges light
c. is two prisms placed apex to apex
d. is concave: b. converges light
103. Eyeglass prescription powers are written in:
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a. axis
b. prisms
c. diopters
d. degrees: c. diopters
104. Axis is:
a. a notation of position
b. a notation of power on a lens
c. always greater than 180 degrees
d. used on spherical rx's: a. a notation of position
105. The spherical equivalent of the lens +1.
+2.50 x 090 is:
a. +1.50 D
b. +2.25 D
c. +2.50 D
d. +3.50 D: b. +2.25 D
106. If the prescription is OD +1.00 +2.50 x 045,
what would the total power be at axis 90?
a. +1.00 D
b. +2.00 D
c. +2.25 D
d. +2.50 D: c. +2.25 D
107. Given a prescription with all specifications
equal but ground in material of different indices, which set of lenses will be the thinnest?
a. crown glass
b. polycarbonate
c. CR-
d. photo-gray extra: b. polycarbonate
108. Astigmatism is corrected by a lens having:
a. plus power
b. minus power
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