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:
1. Read each question carefully.
2. Answer all questions.
3. Use the provided answer sheet to mark your responses.
4. Ensure all answers are final before submitting the exam.
5. Please answer each question below and click Submit when you have completed
the Exam.
6. This test has a time limit, The test will save and submit automatically when the
time expires
7. 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- 2026
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
33. How much decentration would these lenses require
and in what direction?
a. OD 2.5mm in; OS 2.5mm out
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b. OD 3mm in; OS 2mm in
c. OD 2.5cm out; OS 2.5cm out
d. OD 3mm out; OS 2mm out: b. OD 3mm in; OS 2mm in
4. If the lenses were not decentrated in the above
example, the induced prismatic effect would be:
a. base in
b. base down
c. base out
d. base up: a. base in
5. Bicentric grinding (slab-off) is used when:
a. vertical imbalance exceeds 1.5 ³
b. large difference in correction
c. base up prism is needed
d. any of the above: d. any of the above
6. There is a 5 ³ created when a +4.00 lens is moved:
a. 12.5mm
b. 1.25mm
c. 12.5cm
d. 5.00mm: a. 12.5mm
7. A patient with a PD of 64 chooses a frame of 52 20.
How much decentration will this patient require and
in what direction?
a. OD 3mm in/OS 5mm out
b. OD 4mm in/OS 4mm in
c. OD 3cm out/OS 5cm out
d. OD 4mm out/OS 4mm out: b. OD 4mm in/OS 4mm in
8. The prism induced when a +4.00 D lens is moved
5mm is:
a. 20 ³
b. 0.2 ³
c. 2 ³
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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
20. Determine the following lens power by using
the lensometer:
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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:
1. Read each question carefully.
2. Answer all questions.
3. Use the provided answer sheet to mark your responses.
4. Ensure all answers are final before submitting the exam.
5. Please answer each question below and click Submit when you have completed
the Exam.
6. This test has a time limit, The test will save and submit automatically when the
time expires
7. This is Exam which will assess your knowledge on the course Learning
Resources.
Good Luck!
, For Inquiries🤔 about This or 📑Any Other Exam 📱HMU
📧
Ctrl + Click ✅ORDER NOW ✅ ✅ ORDER NOW
Follow Link ✅
& Get Instant Expert Help
ABO American Board of Opticianry
2025- 2026
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
33. How much decentration would these lenses require
and in what direction?
a. OD 2.5mm in; OS 2.5mm out
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📧
b. OD 3mm in; OS 2mm in
c. OD 2.5cm out; OS 2.5cm out
d. OD 3mm out; OS 2mm out: b. OD 3mm in; OS 2mm in
4. If the lenses were not decentrated in the above
example, the induced prismatic effect would be:
a. base in
b. base down
c. base out
d. base up: a. base in
5. Bicentric grinding (slab-off) is used when:
a. vertical imbalance exceeds 1.5 ³
b. large difference in correction
c. base up prism is needed
d. any of the above: d. any of the above
6. There is a 5 ³ created when a +4.00 lens is moved:
a. 12.5mm
b. 1.25mm
c. 12.5cm
d. 5.00mm: a. 12.5mm
7. A patient with a PD of 64 chooses a frame of 52 20.
How much decentration will this patient require and
in what direction?
a. OD 3mm in/OS 5mm out
b. OD 4mm in/OS 4mm in
c. OD 3cm out/OS 5cm out
d. OD 4mm out/OS 4mm out: b. OD 4mm in/OS 4mm in
8. The prism induced when a +4.00 D lens is moved
5mm is:
a. 20 ³
b. 0.2 ³
c. 2 ³
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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
20. Determine the following lens power by using
the lensometer:
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