Optician's Abo Study Guide 2023 Latest Version

Which base curve would be the best selection for Rx O.U. +3.00+0.50x90? {Ans: +8.00D}Loss of vision without any apparent defect of the eye is called: {Ans: Amblyopia}A reverse slab-off is molded with base _____ prism in the near portion of the lens. {Ans: Down}The standard distance between the segments in fused double segment multifocals in most cases is: {Ans: 13mm}If the pad arms are lengthened, this adjustment will: {Ans: Push the front out more.}The tendency of an eye to deviate from its normal position is called: {Ans: Phoria}The main reason for the use of Iseikonic lenses is to: {Ans: Match image sizes}A slab-off, which is ground to reduce vertical imbalance at near, creates base _____ prism in the near portion of the lens. {Ans: Up}Polycarbonate is a: {Ans: Greater than that of crown glass.}A patient stops into your dispensary for an adjustment of his glasses. After careful inspection, you find the only thing wrong is that there is too much pantoscopic tilt. To make the necessary adjustment you will: {Ans: Angle the temples upwards from the end pieces.}Cataract spectacle lenses are best if they are made with: {Ans: Aspheric