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ABO Practical

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A measurement - Correct Answer horizontal frame depth ANSI - Correct Answer American National Standards Institute: A private, non-profit organization that coordinates the development and use of voluntary consensus standards in the United States. ASTM - Correct Answer American Society for Test...

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  • September 17, 2024
  • 4
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • ABO Practical
  • ABO Practical
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chaserdreamer
ABO Practical
A measurement - Correct Answer horizontal frame depth

ANSI - Correct Answer American National Standards Institute: A private, non-profit organization that coordinates the
development and use of voluntary consensus standards in the United States.

ASTM - Correct Answer American Society for Testing and Materials

B measurement - Correct Answer vertical frame depth

B& L style adjusting pliers - Correct Answer flat arm will work with pads whose mountings are flush against the pad

Bifocal - Correct Answer lens having two focus strengths

Big Brass screwdriver - Correct Answer unscrew most screw, with a large brass handle

Bridge pressure - Correct Answer 90% of eyeglass weight
too small bridge will cause irritation on the sides of the nose
to large a bridge will put unnecessary pressure on the crest of the patients nose

C- size - Correct Answer The circumference of the lens

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 the lens
has sufficient power, de-centering the optical center of the lens

Cancelling Prism - Correct Answer BI & BO
BD & BD
BU & BU

chappel cutting pliers - Correct Answer he Chappel Cutting Plier cuts screw assemblies and reduces the risk of
damaging lenses

Circumference gauge - Correct Answer For quick and accurate measurements of lenses or patterns.

Compounding Prism - Correct Answer BI & BI
BO & BO
BU & BD

Corneal reflex Pupilometer - Correct Answer for precisely measuring and digitally recording pupillary distances. Used
for measuring of monocular and binocular

Datum Line - Correct Answer 180 line, reference point for measurements

DBC - Correct Answer distance between centers, also referred to as the frame PD or FPD

DBL - Correct Answer distance between lenses, smallest linear measurement between lenses

Digital Measurement System - Correct Answer takes measurements digitally for pd, seg height, and oc

Distometer - Correct Answer An instrument for measuring vertex distance.

ear pressure - Correct Answer 90% of adjustment to make it feel comfortable

ED - Correct Answer effective diameter, twice the longest radius of the lens

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