ABO

Prepare for your ABO Advanced Formulas certification with this comprehensive 2025 study guide. This resource features a collection of practice exam questions and detailed answers covering critical topics like optical lens design, prism calculations, multifocal fitting, and ANSI standards. Test your knowledge, identify weak areas, and boost your confidence to pass the ABO Advanced exam on your first try.

This document provides the complete set of ABO (American Board of Opticianry) Exam questions with verified correct answers and detailed rationales, updated to the newest 2025 version. It covers all major areas of opticianry, including optics, lens materials, frame selection, prescription interpretation, and patient measurements. Each answer is explained with clear reasoning to support learning and exam readiness. This A+ graded resource is ideal for opticianry students and professionals preparin...

Quiz: Name the 3 types of tunics of the eye, and what areas of the eye they consist of. Ans: 1. Fibrous: cornea and sclera (outer protective coating) 2. Vascular: iris, ciliary body and choroid (uveal tract) 3. Neural: retina Quiz:During accommodation, what 3 things do the eyes do? Ans: 1. Ciliary muscle relaxes allowing for thickening of crystalline lens 2. Eyes converge 3. Pupils constrict Quiz:What happens with Aniseikonia? o © 2025 TestTrackers o or call [] o Resources & Upd...

The extra-ocular muscles are inserted into the sclera and serve to rotate the eye in all possible directions. There are _______of these muscles. - CORRECT ANSWER>>Six The fibrous tunic is comprised of the: - CORRECT ANSWER>>Sclera and cornea Fusion occurs: - CORRECT ANSWER>>In the brain The aqueous fluid is continually being manufactured by: - CORRECT ANSWER>>The ciliary body The ability of the eye to bring objects of varying distances to focus on the retina is know...

ABO EXAM

ABO EXAM

ABO Practice Exam 2024 Questions & Answers | 100% Correct | Verified If the wearer complains of the bifocal line being somewhat in his way when driving, the problem may be alleviated by decreasing the distance between pads. True or False - False If the wearer complains that the glasses feel snug but still slip down the nose, one likely cause is that: A. The frame is too small B. The bridge fit is tight C. Pressure is being applied by the temple shafts anterior to the ear. D. Pressure is...

ABO EXAM PRE-TEST | 2024 Questions & Answers | 100% Correct | Verified 150 mm - When ordering a six inch temple, its corresponding millimeter value is which of the following? A. 135 mm B. 140 mm C. 145 mm D. 150 mm 500 mm - What is the focal length of a 2 diopter lens? A. 500 cm B. 39.37 inches C. 500 mm D. 2 meters Nanometers - Wavelengths are measured in A. Meters B. Decimeters C. Centimeters D. Nanometers UVC - Which of the following has the shortest and therefore most harmf...

ABO PRACTICE EXAM PART ONE QUESTIONS WITH 100% CORRECT ANSWERS. the wavelength of the infrared waves in the electromagnetic spectrum are longer than visible red light waves the Geneva Lens Measure is calibrated for a refractive index of 1.530 A lens made from 2 convex surfaces has against motion A lens reads +4.25D in the vertometer. If the ocular curve is -4.00D, what is the front base curve? +8.25D Which of these front base curves would be suitable for a -300D meniscus lens? +4.50 A...

ABO Practice Test (Answered) With Complete Verified Solution. To mount a lens in a nylon suspension type frame, it would be necessary to _______ the lens. a) Drill b) Notch c) Groove d) V-Bevel c) Groove The optical center of a lens is: a) At the geometrical center b) One the 180 line c) At the point where the "a" and "b" measurement meet d) A lens location of zero deviation of the optical axis d) A lens location of zero deviation of the optical axis The progressive power ...