Download ABO Certification Exam Review: Multiple Choice Questions 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.
- 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!
🤔 Hybridgrades101@gmail.com
Ctrl + Click ✅ ORDER NOW ✅ Follow
Link
& Get Instant
Expert Help
ABO American Board of Opticianry 2025- Test Bank For American Board of Opticianry ABO Certification Exam Review (Multiple Choice) Questions with Correct Answers | 100% Pass Guaranteed | Graded A+ |
Read All Instructions Carefully and Answer All the
Questions Correctly Good Luck: -
- Which of the following is NOT a characteristic of a Plus Lens: a. Magnifies b. Real Focal Length c. With Motion d. Strengthens as Vertex Increases - =Answer>> C) With Motion
- The weight of the standard dress safety drop ball according to the FDA regulations is: a. 72 ounces b. 6.5 ounces c. 8.7 ounces d. .56 ounces - =Answer>> D) .56 ounces
- Which of the following refers to the normal eye? a. Emmetropic b. Exophoric c. Anisometropic d. Prebyopic - =Answer>> A) Emmetropic
Need Writing 🤔Help? We've Got You Covered! ✍
100% NO A I or Plagiarism Guaranteed🤔
🤔 ORDER NOW 🤔
🤔 Hybridgrades101@gmail.com d. prism axis indicator - =Answer>> c. reticle
- What base curve is recommended when grinding a single vision glass lens if the rx is: +6.50 -2.00 x 165? a. plano b. +15. c. +6. d. +10.00 - =Answer>> d. +10.
- A pupillometer is used to measure the: a. diameter of the pupil b. radius of the pupil c. interpupillary distance d. height of the pupil - =Answer>> c. interpupillary distance
- Most commonly, opticians use a Geneva lens measure to: a. measure lens thickness b. measure segment height c. measure lens diameter d. measure lens base curve - =Answer>> d. measure lens base curve
- The instrument that opticians commonly use to measure vertex distance is called a(n): a. ophthalmoscope b. distometer c. geneva lens measure d. lensometer - =Answer>> b. distometer
- A lensmeter cannot measure or locate the:
Need Writing 🤔Help? We've Got You Covered! ✍
100% NO A I or Plagiarism Guaranteed🤔
🤔 Hybridgrades101@gmail.com a. resultant OC of a bifocal segment b. direction of prismatic power c. top of a bifocal segment d. axis of a cylindrical lens - =Answer>> c. top of a bifocal segment
- A lensmeter measures the: a. effective power of cylinders b. effective power of spheres c. effective power of compound lenses d. all of the above - =Answer>> d. all of the above
- When verifying an add with a lens clock, a +2.75 add would clock ________ in distance and _________ in segment. a. +6.12; +8. b. -4.50; -7. c. +4.37; +7. d. +3.75; +1.00 - =Answer>> c. +4.37; +7.
- Determine the rx from the following readings taken from a lensmeter which presents its three thin lines as the sphere lines and the three thick lines as the cylinder lines. First reading: single line on focus, -2.00 on power wheel, axis 20 on the protractor. Second reading: three cross lines in focus, +0.75 on power wheel. a. -2.00 -1.25 x 20 b. -2.00 -0.75 x 20 c. -3.25 +1.25 x 110 d. -2.00 +2.75 x 20 - =Answer>> a. -2.00 -1.25 x 20
- If your lensmeter reads -0.25D with no lens, a lens that measures -3.00 -1.50 x 180 is actually: a. -2.75 -1.25 x 180
Need Writing 🤔Help? We've Got You Covered! ✍
100% NO A I or Plagiarism Guaranteed🤔
🤔 Hybridgrades101@gmail.com c. 10.5mm below d. 11mm below - =Answer>> b. 6mm below
- A patient refracted at an 8mm vertex is prescribed a +13.00D sphere. The fitted vertex is 12mm. The compensated lens power becomes: a. +11.75D b. +12.37D c. +13.25D d. +13.75D - =Answer>> b. +12.37D
- A patient is found to have a monocular PD of R: 33mm, L: 35mm and makes a final selection of a frame, box measured 50 20 mm. The major reference points (MRP) of the lenses, R and L respectively, will be found as follows: a. R = 2 mm in; L = 0 b. R = 1 mm in; L = 1 mm in c. R = 1 mm out; L = 1 mm out d. R = 0; L = 2 mm in - =Answer>> a. R = 2 mm in; L = 0
- What is the power of a +2.00 x 90 lens in the 65th meridian? a. +0.12D b. +0.37D c. +0.87D d. +1.62D - =Answer>> b. +0.37D
- A lens which reads +3.00 -2.00 x 90 is decentered 6 mm too much. How much prismatic effect will the wearer experience? a. 1.8△D b. 0.6△D
Need Writing 🤔Help? We've Got You Covered! ✍
100% NO A I or Plagiarism Guaranteed🤔
🤔 Hybridgrades101@gmail.com c. 3.0△D d. 1.2△D - =Answer>> b. 0.6D
- A lens which reads +2.00 +2.00 x 180, is decentered too much resulting in a PD which is 5 mm narrow. How much prism and what base direction is experienced by the wearer? a. 1 △D base out b. 4 △D base out c. no prism d. 1 △D base in - =Answer>> d. 1D base in
- A lens, which reads -5.00 +5.00 x 90 is decentered too much resulting in a PD which is 5 mm narrow. How much prism and what base direction is experienced by the wearer? a. 5 diopters base in b. 2.5 diopters base out c. 2.5 diopters base in d. no prism - =Answer>> b. 2.5 diopters base out
- What base curve is recommended using the single vision rx below?
- OD: -4.00 -0.50 x 145 OS: -3.00 -0.50 x 145 a. plano b. +7.00D c. +10.00D d. +3.00D - =Answer>> d. +3.00D
- Frequently, bicentric grinding is used as a means of obtaining prism in the reading field to correct induced prism imbalance. The usual correction during the
Need Writing 🤔Help? We've Got You Covered! ✍
100% NO A I or Plagiarism Guaranteed🤔
🤔 Hybridgrades101@gmail.com a. 100% b. 90& c. 50% d. 0% - =Answer>> d. 0%
- You are fitting a patient with a 24 DBL, 44 eye size, and 5 1/2 inch skull temples. The distance PD is only 62 mm. If by some unfortunate error the lenses are NOT decentered at all, how much prism is created in each eye? Rx OU: -2.25 -1.50 x 045 a. 0.9△BI b. 0.5△BI c. 0.9△BO d. 0.5△BO - =Answer>> a. 0.9 BI
- Given an rx plano +1.50 x 005, how much of the +1.50 cylinder is in effect 135 degrees away at axis 140? a. +0.50D b. +0.75D c. +1.00D d. +1.50D - =Answer>> b. +0.75D
- Which of the following tools can be used to determine the vertex distance for a high plus aphakic spectacle wearer? a. seg measurer b. corneal reflex pupilometer c. lensmeter d. retroscopic angle gauge - =Answer>> b. corneal reflex pupilometer
Need Writing 🤔Help? We've Got You Covered! ✍
100% NO A I or Plagiarism Guaranteed🤔
🤔 Hybridgrades101@gmail.com
- Which of the following best describes the function of the choroid? a. Nourishment through blood flow b. Protection of the Globe c. Color Perception d. Sends signals to the optic nerve - =Answer>> A) Nourishment through blood flow
- The cylinder axis tolerance for a 0.25 D cylinder according to ANSI Z 80.1 is: a. + or - 7° b. + or - 5° c. + or - 3° d. + or - 2° - =Answer>> A) + or - 7°
- To mount a lens in a nylon suspension type frame, it would be necessary to _______ the lens. a) Drill b) Notch c) Groove d) V-Bevel - =Answer>> c) Groove
- The optical center of a lens is: a) At the geometrical center b) One the 180 line c) At the point where the "a" and "b" measurement meet d) A lens location of zero deviation of the optical axis - =Answer>> d) A lens location of zero deviation of the optical axis
- The progressive power lens has a progressive zone after where power: a) Gradually increases
Need Writing 🤔Help? We've Got You Covered! ✍
100% NO A I or Plagiarism Guaranteed🤔
🤔 Hybridgrades101@gmail.com d) Reducing power - =Answer>> b) Reducing reflections
- Aspheric lens surfaces are most commonly used with: a) Lenses of low refractive power b) Occluder lenses c) High plus lenses d) Sunglasses - =Answer>> b) Occluder lenses
- The most commonly used prescription for correcting muscle imbalance in a case of esotrophia would be: a) Plus sphere b) Minus cylinder c) Base in prism d) Base out prism - =Answer>> d) Base out prism
- The use of multifocal lenses is associated with: a) Presbyopia b) Astigmatism c) Phoria d) Tropia - =Answer>> a) Presbyopia
- When the optician advies the consumer as to the breakage of lenses, the risk of injury should be described in terms of: a) Impact resistance b) Shatterproff c) Lens inspection d) Lens verification - =Answer>> a) Impact resisitance
Need Writing 🤔Help? We've Got You Covered! ✍
100% NO A I or Plagiarism Guaranteed🤔
🤔 Hybridgrades101@gmail.com
- When fitting progressive power lenses, certain critical measurements are taken, one of the most important is the: a) Lens size b) Bridge size measurement c) Monocular pupillary measurement d) Temple length measurement - =Answer>> c) Monocular pupillary measurement
- When using the boxing method to measure a lens, the "A" dimension refers to: a) The longest diagonal measurement b) The longest up and down measurement c) The distance across the lens at the widest point d) Twice the ED - =Answer>> c) The distance across the lens at the widest point
- Some characteristics of minus lenses include: a) Magnifies images, converge light rays images, power weakens as vertex shortens b) Minifies images, diverges light rays images, power strengthens as vertex shortens c) Magnify images, diverges light rays images, power strengthens as vertex shortens d) Minifies images, diverges light rays images, power weakens as vertex shortens - =Answer>> b) Minifies images, diverges light raysimages, power strengthens as vertex shortens
- What is the advantage of a short corridor progressive design>
Need Writing 🤔Help? We've Got You Covered! ✍
100% NO A I or Plagiarism Guaranteed🤔
🤔 Hybridgrades101@gmail.com a) Full saddle b) Semi-saddle c) Sculptured d) Keyhole - =Answer>> d) Keyhole
- If a person has exposure to sunlight at least 2 hours or more during the day__________________ a) Their tolerance of bright sunlight is increased b) Their tolerance of bright sunlight is decreased c) Their ability to adapt to quick lighting changes is increased d) Their ability to adapt to night vision is compromised if they dont protect their eyes from the sun exposure - =Answer>> d) Their ability to adapt to night vision is compromised if they dont protect their eyes from the sun exposure
- Progressive lenses are used to correct for a condtion called: a) Myopia b) Presbyopia c) Anisometropia d) Emmetropia - =Answer>> b) Presbyopia
- The lower the ABBE number the _______________ a) Less the chromatic abberation b) More the chromatic abberation c) Thicker then lens d) Thinner the lens - =Answer>> b) More the chromatic abberation
- Most compound opthalmic lenses have:
Need Writing 🤔Help? We've Got You Covered! ✍
100% NO A I or Plagiarism Guaranteed🤔
🤔 Hybridgrades101@gmail.com a) Both spherical and cylindrical surfaces b) Spherical surfaces only c) Cylindrical surfaces only d) Have a cemented segement for the add power
- =Answer>> a) Both spherical and cylindrical surfaces
- The instrument that opticians commonly use measure vertex distance is called a (an): a) Ophthalmoscope b) Distometer c) Geneva lens clock d) Lensometer - =Answer>> b) Distometer
- To physically measure the location of cylinder, the optician would use: a) Curvature of the cornea b) Refractive power c) Dioptric power d) Intra-occular pressure - =Answer>> d) Intra- occular pressure
- The instrument that provides information on the patient's refractive status by reflecting light off the retina is: a) Ophthalmoscope b) Tonometer c) Phoropter d) Retinoscope - =Answer>> d) Retinoscope
- The first step in performing manual lensometry is to: a) Focus the eyepiece
Need Writing 🤔Help? We've Got You Covered! ✍
100% NO A I or Plagiarism Guaranteed🤔
🤔 Hybridgrades101@gmail.com d) Below the target center - =Answer>> c) Above the target center
- If the lensometer mires cannot be centered in the central portion of the lensometer target, the lens probably contains: a) Sphere b) Cylinder c) Prism d) Spherocylinder - =Answer>> c) Prism
- When verifying an ADD with a lens clock, a +2. ADD would clock ________ in distance and _________ in segment. a) +6.12, +8. b) -4.50, -7. c) +4.37, +7. d) +3.75, +1.00 - =Answer>> c) +4.37, +7.
- A pupilometer is used to measure the: a) Diameter of the pupil b) Radius of the pupil c) Interpupillary distance d) Height of pupil - =Answer>> c) Interpupillary distance
- A polariscope is used to check inserted lenses for: a) Sphere power b) Cylinder power c) Prism d) Strain - =Answer>> d) Strain
Need Writing 🤔Help? We've Got You Covered! ✍
100% NO A I or Plagiarism Guaranteed🤔
🤔 Hybridgrades101@gmail.com
- The patient's RX is -2.00 -0.50 x 120 ADD +3. Trifocal. The RX through the intermediate portion of the trifocal will read: a) -0.50 -0.50 x b) +1.00 -0.50 x c) -5.00 -0.50 x d) +5.00 -0.50 x120 - =Answer>> a) -0.50 -0. x
- If your lensometer reads -0.25 with no lens, a lens measures -3.00 -1.50 x 180 is actually: a) -2.75 -1.25 x b) -2.75 -1.50 x 180 c) -3.25 -1.75 x 180 d) -3.25 -1.50 x 180 - =Answer>> b) -2.75 -1.50 x 180
- Lens calipers are commony used to measured: a) Lens diameter b) Bifocal height c) Index of refraction d) Lens thickness - =Answer>> d) Lens thickness
- A retinoscope is used to: a) Illuminate and inspect the retina b) Test for muscle problems c) Measure refractive error d) Measure the curvature of the retina - =Answer>> a) Illuminate and inspect the retina
- To increase temple spread, one should: a) File the frame front only
Need Writing 🤔Help? We've Got You Covered! ✍
100% NO A I or Plagiarism Guaranteed🤔
