Trifocal Study guides, Class notes & Summaries

The refractive astigmatism indicated by the RX +1.50 -1.75 x 35 is correct answers Mixed The patient's RX is -1.75 -.50 x 120 with a +2.00 ADD standard trifocal. What is the power through the intermediate? correct answers -.75 -.50 x 120 The Geneva lens measure is designed to measure correct answers Lens curvature The focal length of a +5.00 diopter lens is correct answers 20 cm The problem of prismatic imbalance at the reading level is called correct answers Anisometropia Whic...

The refractive astigmatism indicated by the RX +1.50 -1.75 x 35 is - ANSWER-Mixed The patient's RX is -1.75 -.50 x 120 with a +2.00 ADD standard trifocal. What is the power through the intermediate? - ANSWER--.75 -.50 x 120 The Geneva lens measure is designed to measure - ANSWER-Lens curvature The focal length of a +5.00 diopter lens is - ANSWER-20 cm The problem of prismatic imbalance at the reading level is called - ANSWER-Anisometropia Which of the following indicated the mo...

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...

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...

The refractive astigmatism indicated by the RX +1.50 -1.75 x 35 is - ANSWER-Mixed The patient's RX is -1.75 -.50 x 120 with a +2.00 ADD standard trifocal. What is the power through the intermediate? - ANSWER--.75 -.50 x 120 The Geneva lens measure is designed to measure - ANSWER-Lens curvature The focal length of a +5.00 diopter lens is - ANSWER-20 cm The problem of prismatic imbalance at the reading level is called - ANSWER-Anisometropia Which of the following indicated the mo...

Affective Curriculum - correct answer Focuses on person/social awareness and adjustment, and includes the study of values, attitudes, and self. Sometimes referred to as social-emotional curriculum. J.P. Guilford - Structure of Intellect -SOI - correct answer Intelligence is viewed as comprising operations, contents, and products. There are 5 kinds of operations (cognition, memory, divergent production, convergent production, evaluation), 6 kinds of products (units, classes, relations, systems...

ABO Practical (ABO Practical broken down based on the ABO-NCLE practical Exam Candidate Handbook Practical Test Specifications sheet) 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 ba...

ABO Practical Correct Questions & Answers(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 surf...

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...

Progressive lenses might be used for children with which condition? - ANS Accommodative Esotropia What is the point of reference located 2-4mm above the PRP on a PAL? - ANS Fitting cross When measuring for PALs, where should the fitting cross be placed? - ANS Directly centered in the pupil Which characteristic would indicate a hard design lens? - ANS Unwanted cylinder may rapidly increase With free-form lens generating technology, lenses are now made w...