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Basic ABO Certification Exam: Comprehensive Review Questions and Answers, Exams of Ophthalmology

A comprehensive review of the basic abo certification exam, covering key concepts and principles related to opticianry. It includes multiple-choice questions and answers, designed to help students prepare for the exam. Topics such as lens categories, focimeter measurements, prism neutralization, prescription verification, and ansi standards.

Typology: Exams

2024/2025

Available from 02/04/2025

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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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Download Basic ABO Certification Exam: Comprehensive Review Questions and Answers 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:

  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- Basic ABO Certification Exam Final Comprehensive Review Questions and Answers | 100% Pass Guaranteed | Graded A+ |

Read All Instructions Carefully and Answer All the

Questions Correctly Good Luck: -

1.Which of the following categories of lenses are

exempt from the "drop ball" test?

A. Iseikonic lensee

B. Prism Segment Multifocals

C. Myodiscs

D. all of the above: D. all of the above

2.What is measured by the focimeter?

A. sphere power

B. cylinder power

C. prism power and direction

D. all of the above: D. all of the above

3.When neutralizing a pair of eyeglasses, you have

noticed that one of the lenses have prism. The reticle on the left lens focuses and Quadrant 4 instead of at the center of the reticle. What type of prism is indicated?

A. down or in

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A. Medicare does not pay for frame

B. Medicare will always pay for frame

C. only following cataract surgery

D. only if the patient is in a PPO: C. only following

cataract surgery

9.Who is protected by the ADA?

A. employees

B. patients

C. suppliers

D. both employees and patients: D. both employees and

patients

10. What does PHI stand for?

A. Private Health Insurance

B. Patient Health Information

C. Protected Health Information

D. none of the above: C. Protected Health Information

11. How long must a Medicare managed care facility

retain records?

A. 3 years

B. 10 years

C. 5 years

D. 6 years: B. 10 years

12. The extra-ocular muscles are inserted into the

sclera and serve to rotate the eye in all possible directions. There are of these muscles in each eye.: six

13. The fibrous tunic is comprised of the:: Sclera, cornea,

& limbus

14. Fusion occurs:: in the brain

15. The aqueous fluid is continually being produced by::

the ciliary body

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16. The ability of the eye to bring objects of varying

distances to focus on the retina is known as:: accommodation

17. When accommodation is at rest, rays of light from a

distant source come to focus in front of the retina. This condition is know as:: Myopia

18. When accommodation is at rest, rays of light from a

distant source come to focus behind the retina. This condition is known as:: Hyperopia

19. Impulses are carried from the retina to the brain

along the:: Optic nerve

20. While reading, or performing other near vision

tasks:: 1. The pupils constrict

2.The eyes converge

3.The crystalline lens accomodates

4.The stroma contracts

21. That area of the retina capable of perceiving the

greatest amount of detail is:: fovea centralis

22. The average cornea has a refractive power of

approx. :: 43 diopters

23. The Layer of the cornea which is highly

regenerative is:: the Epithelium

24. Night vision is chiefly a function of:: the rods

25. A tendency of the visual axis to deviate inward

when the eyes are in a position of rest is known as:: esophoria

27. The part of the lensometer which is capable of

measuring the amount of prism is the:

A. reticle

B. axis wheel

C. spotting device

D. power drum: A. reticle

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32. This diagram illustrates a lens with.

A. base up prism

B. base down prism

C. base in prism

D. base out prism: A. base up prism

33. Before positioning a lens in a lensometer, it is

almost always necessary to:

A. rotate the axis wheel

B. rotate the power drum

C. clean the lens table

D. focus the eye piece: D. focus the eye piece

34. The lensometer reticle is divided into quadrants for

the purpose of:

A. indicating the direction of the prism base

B. determining the cylinder axis

C. verifying the power in diopters

D. none of the above: A. indicating the direction of the

prism base

35. FMLA refers to:

A. Family Medical Leave Act

B. Federally Mandated Lens Act

C. Federal Manufacturers Lens Association

D. Frame Manufacturer Labeling Act: A. Family Medical

Leave Act

36. A patient enters your dispensary complaining of

severe eye pain. What is your first course of action?

A. check base curves and positioning of optical centers

B. perform follow-up keratometer readings

C. immediately refer to their eye doctor

D. re-align fit of adjustable nose pads: C. immediately

refer to the eye doctor

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37. The is a non-governmental agency with functions to

establish standards for a wide variety of industrial and commercial interest.

A. American National Standard Institute (ANSI)

B. Occupational Safety and Health Administration

(OSHA)

C. Food and Drug Administration (FDA)

D. Federal Trade Commission (FTC): A. American National

Standard Institute (ANSI)

38. According to ANSI standards, a lens containing 0.

diopters of cylinder must be within of the specified axis. A. +- 2.0° B. +- 3.0° C. +- 5.0° D. +- 7.0°: D. +- 7.0°

39. A lens containing over 1.50 diopters of cylinder

must be within of the specified axis. A. +- 2.0° B. +- 3.0° C. +- 5.0° D. +- 7.0°: A. +- 2.0°

40. According to ANSI standards, the base curve

received must be within of that specified.

A. +-0.25 D

B. +-0.50 D

C. +-0.75 D

D. +-1.00 D: C. +-0.75 D

41. Your patient insists that his visual acuity is sharper

through his old glasses than the new ones just delivered. What is the first thing you do?

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C. +6.

D. all of the above: D. all of the above

45. The is the principal consumer protection agency of

the federal government.

A. Food and Drug Administration

B. American National Standards Institute

C. Federal Trade Commission

D. American Society for Testing and Materials: A. Food

and Drug Administration

46. The strength and durability of spectacle lenses

should be described to the consumer in terms of being?

A. shatterproof

B. impact resistant

C. unbreakable

D. all of the above: B. impact resistant

47. During final inspection of a pair of +16.00 diopter

aspheric cataract spec- tacle lenses, it is found that the actual power of the lenses do not exactly meet specifications. Which of the following would be acceptable according to ANSI Standards Z80.1-

A. +16.

B. +16.

C. +15.

D. all of the above: D. all of the above

48. A "farsighted" eye is one that is:: hyperopic

49. The term used to indicate "double vision" is::

diplopia

50. The condition in which the ability to accommodate

for near vision becomes inadequate because of the loss of elasticity of the crystalline lens is called:: - Presbyopia

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51. When there is a loss of vision without any apparent

disease of the eye, it is known as:: amblyopia

52. A refractive error in which the rays of light do not

come to a single point of focus is called:: astigmatism

53. The condition in which the crystalline lens of the

eye gradually loses its transparency with consequent loss of visual acuity is known as:: cataract

54. An ocular disease having as its primary

characteristic a a sustained in- crease in intraocular pressure:: glaucoma

55. The space between the back of the iris and the

front of the lens which is filled with aqueous is the:: posterior chamber

56. A tendency of one eye to deviate upward is::

hyperphoria

57. The photosensitive receptions of the retina which

are responsible for sharp visual acuity and color perception are the:: cones

58. The layer of the cornea which comprises ninety

percent of its thickness is:: the stroma

59. A condition in which the refractive error of one eye

significantly differs from that of the other and where both eyes have the same sign is known as:: anisometropia

60. The refractive error which results in two points of

focus falling behind the retina is:: compound hyperopic astigmatisim

61. The refractive condition cause by a damaged cornea

so that rays of light come to many focal points on the retina is known as:: irregular astigmatism

62. The transparent, colorless mass of soft, gelatinous

material which fills the eyeball behind the lens is the:: vitreous humor

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79. Fused bifocals are available in a variety of styles.

Which of the below are listed lenses can be manufactured with a fused segment?: Flat Top

80. In a round bifocal segment you will find the optical

center located: in the geometric center

81. The intermediate power most common in trifocal

lenses is: 50%

82. Which of the following bifocal segments contain the

least amount of the image jump?: Flat top

83. RX -2.00 -0.75 x 30 ADD: +2.50 If the lens was made

utilizing a standard trifocal design, what would be the power through the intermediate portion?: - -0.75 -0.75 x

84. The refractive index of the polycarbonate is: 1.

85. Cataract spectacle lenses can be made: all of the

above

86. When compared to conventional spherical lenses,

aspherics:: are thinner & flatter

87. Occupational multifocal lenses are useful for a

variety of purposes. A double segment "D" style lens might be worn by:: an electrician

88. The usefulness of cataract spectacle lenses can be

improved by using:: - aspheric front curves

89. Some aspheric lenses can be identified by

manufacturer:: by referring to an engraved ID markings

90. The minimum fitting height for most progressive

addition lenses is: 22-25 mm depending on the brand

91. The best candidates for progressive powered lenses

are: early presbyopes

92. Polycarbonate lenses, because of their superior

impact resistance, are frequently used in: all of the aboe

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93. The Abbe value of the polycarbonate is: lower than

CR 39

94. "Conventional" slab-off is ground with base up

prism in the reading por- tion only on the lens with the in the vertical meridian.: most minus power

95. Bicentric grinding or slab-off is generally prescribed

for the correction of: excessive prismatic imbalance at the reading level

96. RX: +4.50 + 0.50 x 90

+2.00 +0.25 x 90 Add: +1. What is the vertical prismatic imbalance at a 10mm reading level?: 2.5 prism diopters

97. The reverse slab-off lens design utilizes base down

prism in the lens with the in the vertical meridian.: least minus power

98. In the Rx below, indicate the amount of

conventional slab off needed to neutralize the vertical prismatic imbalance the reading level is:: 10mm. Rx: -5.00-0.50 x 180 -2.75 -0.75 x 180 Add: +2.

99. When calculating vertical prismatic imbalance, all of

the following need to be considered except: reading addition

100. Progressive lenses require the following

measurements in order to be accurately fit: Monocular PD and monocular seg height

101. Of the lens material materials listed below, which is

the most impact resistant?: Polycarbonate

102. A primary benefit of polarized lenses is: they

significantly reduce glare

103. RX: +2.75 -1.00 X 120

+2.50 -0.75 x 110 Add: +2.

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114. A corrected lens increases in minus power, the base

curved tends to become gradually:: flatter

115. As the radius, of curvature of a spherical surface

increases in length, its curve becomes gradually: flatter

116. As a corrected curve lens increases in plus power,

the base curve tends to become gradually: steeper

117. As the radius of curvature of a spherical surface

decreases in length, its curve becomes gradually:: steeper

118. Which of the following refractive conditions is this

lens designed to correct? Plano -2.00 X 180: Simple Myopic Astigmatism

119. +0.50-0.75x

Which of the following refractive conditions is the lens designed to correct?- : Mixed Astigmatism

120. Compound ophthalmic lenses usually consist of::

Both Cylindrical and spherical spheres

121. The power of a cylinder along its axis contains: no

cylinder power

122. When the surfaces of a 1.530 index glass lens are

measured with a lens clock, the front curve reads +6.00 D and the back curve reads -5.50 D. The focal length of that lens is: 2 meters

123. The power of a compound lens in any given

meridian will vary as the axis of the cylinder changes. Which of the following lenses contain no power in the ninety degree meridian?: -2.50 +2.50 x 180

124. When a plus lens is moved closer to the eye its

effective power:: decreases

125. When a high powered minus lens is moved closer to

the eye the compen- sated power must: be decreased

126. A +10.00 diopter lens is fit at a 14 mm vertex

distance. A few name is selected which positions the

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🤔 Hybridgrades101@gmail.com back surface of the lens 9mm from the cornea. The power of the new lens needed to compensate for the change in vertex distance is:: +10.

127. It is important to consider vertex distance in

spectacle lenses when the power exceeds:: +7.00 D

128. When a lens shape contains one convex surface and

one concave sur- face, it is called a lens.: meniscus

129. The amount of power contained in any given prism

is correctly expressed as:: Diopters of prism

130. Which of these could change the power of a lens?:

all of these

131. What is the definition of the optical center?: the

point of no refraction

132. What is the definition of a sphere lens?: lens with one

power in all meridians

133. Which aberration might give the patient the

experience of seeing rain- bows?: chromatic

134. What instrument can you use to check if a lens is

warped?: the lens clock

135. What is Geneva standard index?: 1.

136. Which lens has no power at the axis and full power

90 degrees away from the axis?: cylinder

137. The full power of a cylinder lens is located: 90

degrees away from the axis

138. What is another name for a toric lens?: compound

139. When using a lensometer, the sphere reading is -

5.00 & the cylinder reading is -3.75. What is the cylinder power of the Rx?: +1.

140. What is true of modern opthalmic lenses?: any of the

above is true

141. What is the vertical power of this lens +7.00 -1.00 X

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🤔 Hybridgrades101@gmail.com individual, it is generally understood to lie between:: 390 and 750 nanometers

156. If a prism can displace an image one cm at a

distance of one meter, it is said to have a power of:: 1 prism diopter

157. The distance between the crests of two waves is

called the: wavelength

158. The focal length of a -5.00 diopter lens is: -20 cm

159. Decentering a plus lens upward will result in: base

up prism

160. Prentice's Rule states that the amount of induced

prism is equal to:: the power of the lens times the decentration in millimeters divided by 10

161. A pair of spectacles were ordered with the

prescription of -2.00 D in each eye and a PD of 63 mm. They were received from the lab with the optical centers set 66 mm apart. How much total prism was induced and in which direction is the base?: 0.6 prism diopters base in

162. A pair of +4.00 lenses were ordered from the lab

with a PD of 59mm. When these lenses were verified, it was determined that the optical centers were positioned 4mm too wide. How much prism was induced in each eye and in which direction is the base?: 0.8 prism diopters base out

163. A diverging lens produces a image.: virtual

164. Rays emanating from a point source of light are

said to be: diverging

165. Which of these is a source of Infrared radiation?: all

of the above are sources of IR

166. What are the 3 types of UV?: UV A, B, & C

167. Which of these is not a disease or condition related

to UV exposure?: - glaucoma

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168. What part of the electromagnetic spectrum

contains UV energy?: 200 to 400 nm

169. Which color absorbs light?: Black

170. Which of these terms is not related to an optical

concept?: disuse

171. What will a prism do?: displace the image to the apex

172. For a patient requiring no prescribed prism, where

is the MRP?: at the optic center

173. The index of refraction of the material, the

thickness of the lens and the relationship b/w the front and the back of the lens. These are 3 things that:: affect the power of a lens

174. A patient is experiencing 1 base out prism in the

right eye and 2 base in prism in the left eye. What is the total imbalance?: 1

175. Why is it customary to split prism?

-To balance the weight of the lenses -For patient comfort -For better cosmetic appearance -Any of the above: any of the above is a valid reason to split prism

176. When light hits a lens 3 things happen. They are:

absorption, transmission, reflection

177. Most opthalmic frames today are measured utilizing

the boxing sys- tem of measurement. In this system, the "B" measurement represents the .: the lens depth

178. The boxing method of measurement is especially

useful since it can accurately locate the of the lens.: geometric center

179. A certain patient is found to have a monocular PD

measuring R: 31 mm & L: 33mm. The box measurement of the frame selected equals 52/18.

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