Vertometer - Study guides, Class notes & Summaries
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ABO PRACTICAL EXAM(VERRIFIED 2023-2024)
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ABO PRACTICAL EXAM(VERRIFIED 
) 
Cancelling effect- subtract prism amounts - CORRECT ANSWER-BU/BU 
BD/BD 
BI/BO 
Powers between 0.00 & +/- 3.00 - CORRECT ANSWER-Read in 1/8 diopters 
.12 
.37 
.62 
.87 
Lensometer is also referred to as - CORRECT ANSWER-Lensmeter, focimeter, 
vertometer 
To focus eyepiece - CORRECT ANSWER-1) while turned off. Place white sheet of 
paper against lens stop. 
2) turn focus ring all the way counter clockwise,and then back clockwise until sharp. 
3) remove paper...
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ABO PRACTICAL EXAM ADVANCED QUESTIONS AND ANSWERS
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ABO PRACTICAL EXAM ADVANCED 
QUESTIONS AND ANSWERS 
Single Vision - CORRECT ANSWER-corrects for one distance 
Multifocal - CORRECT ANSWER-Corrects with two or more prescriptions (or 'powers') 
Bifocal - CORRECT ANSWER-lens having two focus strengths 
Trifocal - CORRECT ANSWER-pertaining to having three focus strengths 
Calculating Prismatic Effects - CORRECT ANSWER-obtained at the center of an optical 
lens by producing a difference in edge thickness, either by grinding the back surface at ...
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ABO exam 2023 with 100% correct answers
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the wavelength of the infrared waves in the electromagnetic spectrum are - correct answer -longer than visible red light waves 
 
the Geneva Lens Measure is calibrated for a refractive index of - correct answer -1.530 
 
A lens made from 2 convex surfaces - correct answer -has against motion 
 
A lens reads +4.25D in the vertometer. If the ocular curve is -4.00D, what is the front base curve? - correct answer -+8.25D 
 
Which of these front base curves would be suitable for a -300D meniscus lens...
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ABO Practical Exam questions with correct answers
- Exam (elaborations) • 5 pages • 2023
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Cancelling effect- subtract prism amounts - Answer BU/BU 
BD/BD 
BI/BO 
 
Powers between 0.00 & +/- 3.00 - Answer Read in 1/8 diopters 
.12 
.37 
.62 
.87 
 
Lensometer is also referred to as - Answer Lensmeter, focimeter, vertometer 
 
To focus eyepiece - Answer 1) while turned off. Place white sheet of paper against lens stop. 
2) turn focus ring all the way counter clockwise,and then back clockwise until sharp. 
3) remove paper and turn lensometer on 
4) move power d...
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ABO Practical Exam Questions and Answers 2024
- Exam (elaborations) • 4 pages • 2024
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ABO Practical Exam Questions and Answers 2024 
Cancelling effect- subtract prism amounts -Answer-BU/BU 
BD/BD 
BI/BO 
Powers between 0.00 & +/- 3.00 -Answer-Read in 1/8 diopters 
.12 
.37 
.62 
.87 
Lensometer is also referred to as -Answer-Lensmeter, focimeter, vertometer 
To focus eyepiece -Answer-1) while turned off. Place white sheet of paper against lens 
stop. 
2) turn focus ring all the way counter clockwise,and then back clockwise until sharp. 
3) remove paper and turn lensometer on 
4) ...
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ABO PRACTICE EXAM PART ONE 2024/2025 WITH 100% ACCURATE SOLUTIONS
- Exam (elaborations) • 2 pages • 2024
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the ability of the eye to focus objects at varying distances is called - accommodation 
the Geneva Lens Measure is calibrated for a refractive index of - 1.530 
A lens made from 2 convex surfaces - has against motion 
A lens reads +4.25D in the vertometer. If the ocular curve is -4.00D, what is the front base curve? - 
+8.25D 
Which of these front base curves would be suitable for a -300D meniscus lens? - +4.50 
A tinted lens will absorb visible light, infrared and ultra violet becasue of - appr...
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ABO PRACTICE EXAM PART ONE Complete Questions & Answers!!
- Exam (elaborations) • 2 pages • 2024
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the wavelength of the infrared waves in the electromagnetic spectrum are - ANSWER longer than visible red light waves 
 
the Geneva Lens Measure is calibrated for a refractive index of - ANSWER 1.530 
 
A lens made from 2 convex surfaces - ANSWER has against motion 
 
A lens reads +4.25D in the vertometer. If the ocular curve is -4.00D, what is the front base curve? - ANSWER +8.25D 
 
Which of these front base curves would be suitable for a -300D meniscus lens? - ANSWER +4.50 
 
A tinted lens wi...
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ABO Practical Correct Questions & Answers(GRADED A+)
- Exam (elaborations) • 6 pages • 2024
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Single Vision - ANSWER corrects for one distance 
 
Multifocal - ANSWER Corrects with two or more prescriptions (or 'powers') 
 
Bifocal - ANSWER lens having two focus strengths 
 
Trifocal - ANSWER pertaining to having three focus strengths 
 
Calculating Prismatic Effects - ANSWER obtained at the center of an optical lens by producing a difference in edge thickness, either by grinding the back surface at an angle to the front surface during lens surfacing or, if the lens has sufficient power...
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ABO BK EXAM QUESTIONS WITH 100% CORRECT SOLUTIONS.
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ABO BK EXAM QUESTIONS WITH 100% CORRECT SOLUTIONS.
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ABO PRACTICAL TEST LATEST WITH CORRECT ANSWERS 2023/2024
- Exam (elaborations) • 7 pages • 2023
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ABO PRACTICAL TEST LATEST WITH 
CORRECT ANSWERS 2023/2024 
Single Vision - CORRECT ANSWER-corrects for one distance 
Multifocal - CORRECT ANSWER-Corrects with two or more prescriptions (or 'powers') 
Bifocal - CORRECT ANSWER-lens having two focus strengths 
Trifocal - CORRECT ANSWER-pertaining to having three focus strengths 
Calculating Prismatic Effects - CORRECT ANSWER-obtained at the center of an optical 
lens by producing a difference in edge thickness, either by grinding the back surfa...
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