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Optician ABO Master Certification Lesson 1-12 Review Questions and Answers | 100% Pass Guaranteed | Graded A+ | ABO-M Master in Ophthalmic Optics Certification Exam ABO American Board of Opticianry $12.99
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Optician ABO Master Certification Lesson 1-12 Review Questions and Answers | 100% Pass Guaranteed | Graded A+ | ABO-M Master in Ophthalmic Optics Certification Exam ABO American Board of Opticianry

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Optician ABO Master Certification Lesson 1-12 Review Questions and Answers | 100% Pass Guaranteed | Graded A+ | ABO-M Master in Ophthalmic Optics Certification Exam ABO American Board of Opticianry

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  • January 28, 2025
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  • 2024/2025
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StarScoreGrades
National Certification Organization
for Opticians
ABO American Board of Opticianry
ABO Master in Ophthalmic Optics Certification Exam
(ABO- M)
Course Title and Number: (ABO-M) Ophthalmic Optics
Certification
Exam Title: ABO-M Certification Exam
Exam Date: Exam 2025- 2026
Instructor: ____ [Insert Instructor’s Name] _______
Student Name: ___ [Insert Student’s Name] _____
Student ID: ____ [Insert Student ID] _____________

Examination
Time: - ____ Hours: ___ 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.


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Optician ABO Master Certification Lesson 1- 12 Review
Questions and Answers | 100% Pass Guaranteed |
Graded A+ |
2025- 2026
ABO- M Master in Ophthalmic Optics Certification Exam
ABO American Board of Opticianry
Read All Instructions Carefully and Answer All the
Questions Correctly Good Luck: -

The amount of induced horizontal prism can't be greater than a
total of - =Answer>> +/-.67 prism diopters for the two lenses
combined.

The total amount of induced vertical prism cannot be greater
than - =Answer>> +/-.33 prism diopters for the two lenses
combined, or the lenses will be out of tolerance.

An optical distortion in which images are displaced from their
normal position; can occur if the distance between optical
centers (DBC) does not correspond to the interpupillary
distance (IPD) - =Answer>> Prismatic effect

helps you calculate the power of a prism. You can also use it to
determine how far to decenter a lens if you know the strength
of the prism you want.

Prism diopter (Δ) =
Power of the lens (F) x the decentration distance in centimeters
(d) between the optical center and the center of the pupil

And here's the actual formula:
Δ = F x d - =Answer>> Prentice's Rule

Now, let's try out this prentice's Rule formula. Let's say your
client—we'll call him Brad—just got his new glasses, and the

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optical center is misaligned 2 millimeters nasally (or .2
centimeters) in each eye.

Here is Brad's prescription:
O.D. +5.00 sph
O.S. -2.50 sph - =Answer>> First let's see how Prentice's Rule
works for the right eye. Here's our formula:
Prism = F x d
Prism = 5.00 x .2 cm
Prism = 5.00 x .2 = 1

Now let's do the same math—but this time for Brad's left eye.
Prism = F x d
Prism = 2.5 x .2 cm
Prism + 2.5 x .2 = .5

You're going to move the optical centers of her lens away from
her line of sight in order to create the prescribed prismatic
effect. - =Answer>> Decentration

If an eye is turned downward with two prism diopters of
hypotropia, one prism diopter of base-up is prescribed for that
eye, and an equal amount of base-down prism is prescribed for
the other eye. - =Answer>> Splitting Prism

Debbie has a lens with this prescription:
+4.00 -2.00 x 90
The lens is edged incorrectly. Now the optical center is 5 mm
too far in (toward Debbie's nose).

Start by drawing your optical cross to determine the power of
the lens in the horizontal meridian. Now, answer this question:
What is the resulting amount and direction of the prism induced
when Debbie looks through this lens? - =Answer>> 1 ∆ BI
Here's how to obtain this answer.
The optical cross looks like this:
+4.00
+ +2.00
So the +2.00 power is in the horizontal meridian.
From Prentice's Rule you know that:
Prism = Power x Decentration (cm)
So:

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Prism = +2.00 x .5 cm
Prism = 1 ∆

1. What is the prismatic effect of a +6.00 lens decentered 4
mm away from the optical center? (Hint: Remember that you'll
use centimeters for your decentration measurement.) -
=Answer>> 2.4 ∆
Prism = Power x Decentration (cm)
Prism = 6 x .4 = 2.4 ∆

1. If Ed's pupillary distance is 68 mm and the distance between
his frame's geometric centers is 76 millimeters, what is the
required decentration for each eye? - =Answer>> : 4
The difference is 76 - 68 = 8, but the decentration for each eye
is half that, or 4.

a thin, plastic prismatic lens that can be attached temporarily
to the spectacle lens in a patient with diplopia - =Answer>>
Fresnel prism

instant prisms - =Answer>> Presto

Fresnel prism isn't smooth, the amount of light going through it
is reduced. In turn, this reduces visual acuity a little. -
=Answer>> Fresnel prisms have one big disadvantage

a flat lens that uses concentric rings of prisms or grooves to
focus light into a narrow, facing the same direction, allow the
lens to bend the light like a thicker high-powered prism. -
=Answer>> Fresnel Lens

Loss of vision in half of the visual field on the same side of both
eyes - =Answer>> homonymous hemianopia

departure from what is normal - =Answer>> aberrations

the colors of the rays passing through the lenses separate,
much like a light ray passing through a prism separates into the
colors of the rainbow. - =Answer>> dispersion

a change in the shape, size, or position of a place when it is
shown on a map - =Answer>> distortion

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