Focimeter Study guides, Class notes & Summaries

ABO Practical Exam Questions And Answers (Updated And Verified) Single Vision - answercorrects for one distance Multifocal - answerCorrects with two or more prescriptions (or 'powers') Bifocal - answerlens having two focus strengths Trifocal - answerpertaining to having three focus strengths Calculating Prismatic Effects - answerobtained 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 dur...

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...

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) ...

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...

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 ...

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...

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) ...

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...

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...

Another name for the lens meter is: - Answer Focimeter When looking through the eyepiece of the lens meter the 3 thinly spaces lines represent: - Answer Sphere power When looking through the eyepiece of the lens meter the 3 widely spaces lines represent: - 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 into focus at the same time the lens is - Answer Spheroclyinderic...