Focimeter - Study guides, Class notes & Summaries

ABO Lensometer 13 Question and answers already passed 2023/2024Another name for the lens meter is: - correct answer Focimeter When looking through the eyepiece of the lens meter the 3 thinly spaces lines represent: - correct answer Sphere power When looking through the eyepiece of the lens meter the 3 widely spaces lines represent: - correct answer Cylinder Power When looking through the eyepiece of the lens meter, when the 3 closely spaced lines and 3 widely spaced lines do not come i...

Cancelling effect- subtract prism amounts - BU/BU BD/BD BI/BO Powers between 0.00 & +/- 3.00 - Read in 1/8 diopters .12 .37 .62 .87 Lensometer is also referred to as - Lensmeter, focimeter, vertometer To focus eyepiece - 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 drum to high plus, then turn away from you until sharp- shoul...

ABO Practical Exam Questions And Correct Answers, With Complete Verified Solution. Cancelling effect- subtract prism amounts BU/BU BD/BD BI/BO Powers between 0.00 & +/- 3.00 Read in 1/8 diopters .12 .37 .62 .87 Lensometer is also referred to as Lensmeter, focimeter, vertometer To focus eyepiece 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 lensomet...

When should you use occluder? - For noticeable eye abnormalities. Ex.: Strabismus. Also to check binocular PD by occluding each eye to see if eye moved when occluded. BD/BD - Cancels- subtract BI/BI - Compounds- add BI/BO - Cancels- subtract Binocular PD - Total PD of both eyes together. From one pupil to the other pupil. Black numbers on lensometer power drum - (+) BO/BO - Compounds- add BU/BD - Compounds- add BU/BU - Cancels- subtract Cancelling effect- subtract prism amounts - BU/BU...

2024 ABO Practical Exam (ACTUAL EXAM ) Questions and Answers (Solved) 1. Cancelling effect- subtract prism amounts Answer: BU/BUBD/BD BI/BO 2. Powers between 0.00 & +/- 3.00 Answer: Read in 1/8 diopters 3. Lensometer is also referred to as Answer: Lensmeter, focimeter, vertometer 4. To focus eyepiece Answer: 1) while turned off. Place white sheet of paper against lensstop. 2) turn focus ring all the way counter clockwise, and then back clockwise until sharp. 3) remove paper and tur...

ABO -American Board of Opticianry Practical Exam Questions and Answers 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) ...

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 ...

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) ...

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...

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...