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!
1
,Ctrl + Click ✅ORDER NOW ✅ ✅ ORDER NOW
Follow Link ✅
&
Get Instant Expert Help
ABO American Board of Opticianry
2025- 2026
ABO Certification Exam Prep Study Guide | 100% Pass
Guaranteed | Graded A+ |
Read All Instructions Carefully and Answer All the
Questions Correctly Good Luck: -
Ultimate
The ^ ABO Study Guide
Version 2/2025-2026
How to Pass the ABO:
The ABO is based on concepts. To pass the ABO you need grasp the
concepts. The concepts are quite basic and you will pass the exam if
you apply:
Memorization: Good old fashioned memorization. Study until you have the
concepts memorized. Use flash-cards, quiz sessions and study.
Practice: Work the examples given five, ten, fifteen times or until you can
see the patterns.
Visualization: Close your eyes and picture the concepts in your mind.
Picture them in practice and in three-dimensions. Practice it!
Drawing: You are given scrap paper for a reason. USE IT! If you do not draw
the prism questions out, you will not get the questions right.
2
,The ABO is a multiple choice exam. If you take your time you will be able to
determine the correct answer every time by process of elimination.
3
, Chapter 1: Ocular Anatomy................................................................................................ 6
The Structure of the Eye.....................................................................................................................6
The Oculomotor Muscles of the Eye.................................................................................................11
Refractive Errors................................................................................................................................12
Chapter 2: Basic Optical Principles...............................................................................18
Light and the Electromagnetic Spectrum..........................................................................................18
Refraction..........................................................................................................................................18
The Index of Refraction “n”...............................................................................................................19
Diopter/Prism Diopter.......................................................................................................................19
Lenses as Prisms...............................................................................................................................20
Lens Power and Lens Power Formulas..............................................................................................22
Chapter 3: Lens Form......................................................................................................... 23
Sphere...............................................................................................................................................24
Cylinder.............................................................................................................................................24
Axis....................................................................................................................................................25
Aspheric Lens Design........................................................................................................................26
Flat Transposition..............................................................................................................................26
The Optical Cross..............................................................................................................................27
Prism.................................................................................................................................................29
Optical Center Verses Major Reference Point...................................................................................29
Working with Prism Prentice’s Formula............................................................................................30
Compounding Prism - Canceling Prism.............................................................................................30
Prism Power & Meridian...................................................................................................................30
Chapter 4: Lens Options.................................................................................................... 33
Lens Materials...................................................................................................................................34
Lens Material & Thickness................................................................................................................35
AR or Non-Glare Coatings.................................................................................................................36
Photochromics: (Changeable Tint Lenses).........................................................................................36
Polarization.......................................................................................................................................36
Tinting...............................................................................................................................................37
Multifocals........................................................................................................................................38
Progressives......................................................................................................................................40
Slab Off.............................................................................................................................................41
Chapter 5: The Written Prescription.............................................................................42
Primary prescription information explained......................................................................................42
Conversion of a prescription with an add power provided to single vision readers..........................44
Chapter 6: Frames............................................................................................................... 45
How Frames Are Measured...............................................................................................................46
The Parts of an Eyeglass Frame........................................................................................................47
Frame Materials................................................................................................................................50
Verifying frame and lens parameters and other physical characteristics.........................................52
Standard Alignment..........................................................................................................................56
Measuring.........................................................................................................................................60
Applying Product Knowledge............................................................................................................64
Dispensing a complete pair of glasses..............................................................................................66
4
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!
1
,Ctrl + Click ✅ORDER NOW ✅ ✅ ORDER NOW
Follow Link ✅
&
Get Instant Expert Help
ABO American Board of Opticianry
2025- 2026
ABO Certification Exam Prep Study Guide | 100% Pass
Guaranteed | Graded A+ |
Read All Instructions Carefully and Answer All the
Questions Correctly Good Luck: -
Ultimate
The ^ ABO Study Guide
Version 2/2025-2026
How to Pass the ABO:
The ABO is based on concepts. To pass the ABO you need grasp the
concepts. The concepts are quite basic and you will pass the exam if
you apply:
Memorization: Good old fashioned memorization. Study until you have the
concepts memorized. Use flash-cards, quiz sessions and study.
Practice: Work the examples given five, ten, fifteen times or until you can
see the patterns.
Visualization: Close your eyes and picture the concepts in your mind.
Picture them in practice and in three-dimensions. Practice it!
Drawing: You are given scrap paper for a reason. USE IT! If you do not draw
the prism questions out, you will not get the questions right.
2
,The ABO is a multiple choice exam. If you take your time you will be able to
determine the correct answer every time by process of elimination.
3
, Chapter 1: Ocular Anatomy................................................................................................ 6
The Structure of the Eye.....................................................................................................................6
The Oculomotor Muscles of the Eye.................................................................................................11
Refractive Errors................................................................................................................................12
Chapter 2: Basic Optical Principles...............................................................................18
Light and the Electromagnetic Spectrum..........................................................................................18
Refraction..........................................................................................................................................18
The Index of Refraction “n”...............................................................................................................19
Diopter/Prism Diopter.......................................................................................................................19
Lenses as Prisms...............................................................................................................................20
Lens Power and Lens Power Formulas..............................................................................................22
Chapter 3: Lens Form......................................................................................................... 23
Sphere...............................................................................................................................................24
Cylinder.............................................................................................................................................24
Axis....................................................................................................................................................25
Aspheric Lens Design........................................................................................................................26
Flat Transposition..............................................................................................................................26
The Optical Cross..............................................................................................................................27
Prism.................................................................................................................................................29
Optical Center Verses Major Reference Point...................................................................................29
Working with Prism Prentice’s Formula............................................................................................30
Compounding Prism - Canceling Prism.............................................................................................30
Prism Power & Meridian...................................................................................................................30
Chapter 4: Lens Options.................................................................................................... 33
Lens Materials...................................................................................................................................34
Lens Material & Thickness................................................................................................................35
AR or Non-Glare Coatings.................................................................................................................36
Photochromics: (Changeable Tint Lenses).........................................................................................36
Polarization.......................................................................................................................................36
Tinting...............................................................................................................................................37
Multifocals........................................................................................................................................38
Progressives......................................................................................................................................40
Slab Off.............................................................................................................................................41
Chapter 5: The Written Prescription.............................................................................42
Primary prescription information explained......................................................................................42
Conversion of a prescription with an add power provided to single vision readers..........................44
Chapter 6: Frames............................................................................................................... 45
How Frames Are Measured...............................................................................................................46
The Parts of an Eyeglass Frame........................................................................................................47
Frame Materials................................................................................................................................50
Verifying frame and lens parameters and other physical characteristics.........................................52
Standard Alignment..........................................................................................................................56
Measuring.........................................................................................................................................60
Applying Product Knowledge............................................................................................................64
Dispensing a complete pair of glasses..............................................................................................66
4
