Abo practical exam Study guides, Class notes & Summaries

ABO Practical Exam questions & 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 an angle to the front surface during lens surfacing or, if...

a lens focal length may be altered by? - changing the curvature of one surface what controls the amount of light that enters the eye? - Iris lights changing direction as it passes from one medium to another is called what? - refraction meniscus, equiconcave and flat concave are all, what? - minus lenses what term is used to describe the eyes tendency to TURN from its normal position? - phoria refractive condition where light focuses directly ON the retina...? - e...

QUESTIONS AND ANSWERS

Cancelling effect- subtract prism amounts - correct answerBU/BU BD/BD BI/BO Powers between 0.00 & +/- 3.00 - correct answerRead in 1/8 diopters .12 .37 .62 .87 Lensometer is also referred to as - correct answerLensmeter, focimeter, vertometer To focus eyepiece - correct answer1) 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 pow...

ABO Practical (ABO Practical broken down based on the ABO-NCLE practical Exam Single Vision - corrects for one distance Multifocal - Corrects with two or more prescriptions (or 'powers') Bifocal - lens having two focus strengths Trifocal - pertaining to having three focus strengths Calculating Prismatic Effects - 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 sur...

ABO Practical Exam Questions and Answers

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 questions & answers

ABO Practical Exam (85 Answered questions).docx