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ABO Review Exam Study Guide Questions and Correct Answers Graded A+ – Comprehensive Opticianry Certification Study Guide

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This document provides a comprehensive review guide for the ABO (American Board of Opticianry) Exam, featuring exam-style study questions and correct answers covering essential opticianry knowledge. It covers ophthalmic optics, lens materials and designs, prescription interpretation, frame selection and fitting, optical measurements, dispensing procedures, ocular anatomy, optical calculations, and optical instrumentation. The material is designed to reinforce technical knowledge and support focused preparation for the ABO certification examination.

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ABO Review Exam Study Guide Questions and
Correct Answers Graded A+


1. Sclera: Tough, white outer coat oƒ the eyeball
2. myopia: nearsightedness; the condition in which parallel rays oƒ light are brought into ƒocus in ƒront oƒ the retina, rather
than on it
3. reƒlection: light that bounces back
4. reƒraction: when the direction oƒ light changes as it passes ƒrom one medium to another(bending oƒ light)
5. presbyopia: Age oƒ 40
need reading glass crystalline lens diminishes
6. ƒrame diƒƒerence: the ditterence betweeen the horizontal and vertical measurement Ex. 50-
45= 5mm
7. MPD: mechanical PD in a ƒinished pair oƒ glasses the
distance between the optic center
8. measuring PD: should sit at 40 cm(16in) ƒrom patient
9. average PD ƒor adults: 50mm to 75mm
10. diplopia: double vision
11. plus lens: thick at the center
magniƒy
converge
ƑL in ƒront oƒ lens
12. minus lens: think at the center
miniƒy
diverge
ƑL behind oƒ lens
13. astigmatism: ƒootball shape eye two
1/4

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