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ABO 2023 EXAM PRE-TEST GRADED A+ ABO Exam 2023 Solved 100% ABO Exam 2023 with Complete Solutions ABO Exam 2023 with Complete Solutions ABO 2023 Practice Test Solved 100% ABO Practical Exam 2023 ABO practice exam solved 100% Correct ABO Exam Prep 3 -Solved-Lens form and analysis ABO Exam Prep Part 7...

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ABO 2023 EXAM PRE-TEST GRADED A+

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150 mm - ANSWER-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 - ANSWER-What is the focal length of a 2 diopter lens? A. 500 cm B. 39.37 inches C. 500 mm D. 2 meters Nanometers - ANSWER-Wavel...

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ABO Exam 2023 Solved 100%

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Change a bifocal Rx to a single vision Rx - ANSWER-Add the bifocal power to the sphere powers. OD: -0.50 OS: -0.25-0.25x172 Add: +1.75 Turns into- OD: +1.25 OS: +1.50-0.25x172 Anisometropia - ANSWER-There is a difference of 3 diopters between both eyes; when the vision of the eyes differs...

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ABO Exam 2023 with Complete Solutions

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The extra-ocular muscles are inserted into the sclera and serve to rotate the eye in all possible directions. There are _______of these muscles. - ANSWER-Six The fibrous tunic is comprised of the: - ANSWER-Sclera and cornea Fusion occurs: - ANSWER-In the brain The aqueous fluid is continual...

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ABO 2023 Practice Test Solved 100%

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When discussing thick lenses, the factors which are considered in computing the lens power are: a. front curve, thickness and index b. back curve, thickness and index c. front curve, back curve and thickness d. front curve, back curve, thickness and index - ANSWER-d. front curve, back curve, t...

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ABO practice exam solved 100% Correct

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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 - ANSWER-False If the wearer complains that the glasses feel snug but still slip down the nose, one likely cause is that: ...

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ABO Practical Exam 2023

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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 th...

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ABO Practice Test

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Corpuscular - ANSWER-the theory which explains light as a stream of invisible bundles of energy Photons - ANSWER-the visible bundles of energy Electromagnetic Theory - ANSWER-The theory which explains light as moving in a series of wave pulsations. 186,000 miles per second - ANSWER-the spee...

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ABO 2023 Exam Prep

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The extra-ocular muscles are inserted into the sclera and serve to rotate the eye in all possible directions. There are _______of these muscles. - ANSWER-Six The fibrous tunic is comprised of the: - ANSWER-Sclera and cornea Fusion occurs: - ANSWER-In the brain The aqueous fluid is continual...

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ABO Exam Prep 6 Solved- Ophthalmic Frames

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Most ophthalmic frames today are measured utilizing the boxing system of measurement. In this system the B measurement represents the ______. A. lens difference B. the lens width C. the lens depth D. the effective diameter - ANSWER-C. the lens depth The boxing method of measurement is espe...

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ABO Exam Prep 3 -Solved-Lens form and analysis

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To determine the power of a thin lens in air, it is necessary to consider: A. front curve and index of refraction B. back curve and index of refraction C. index of refraction only D. front curve, back curve and index of refraction - ANSWER-D. front curve, back curve and index of refraction ...

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ABO numbers, math, formulas exam-Solved

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Prentice's Rule - ANSWER-P = f x c P = amount of prism correction f = lens power (in diopters) c = decentration (the distance between the pupil centre and the lens's optical centre, in millimeters) Cornea IOR - ANSWER-1.37 Tear Film, Vitreous IOR - ANSWER-1.33 Crystalline lens IOR - AN...

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ABO Advanced Formulas Solved 100%

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Resolving Prism= - ANSWER-Vertical = (prism)(sin angle) Horizontal = (prism) (cos angle) Resultant Prism= - ANSWER-The square root of (Vertical prism^2) + (Horizontal prism^2) tan a=V/H Shape Factor= - ANSWER-1/1-(T/NxF) T=center thickness in m N= index of refraction of lens material F= ...

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ABO Exam Prep Part 7-Solved 100% Correct- Instrumentation

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Lensometer - ANSWER-Optical instrument used to verify lens from a known Rx as well as neutralizing a lens from unknown Rx Adjustable eyepiece - ANSWER-Part of a lensometer that must be first adjusted; power drum must be set to 0 Auxiliary prism ring - ANSWER-Part of a lensometer that expands t...

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ABO Exam prep for spectacle dispensers, part 1 Graded A+

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Accommodation - ANSWER-Focusing of the eye on a near object through relaxation of the ciliary muscle and thickening of the lens. Amblyopia - ANSWER-The loss of vision without any apparent disease of the eye. Ametropia - ANSWER-A refractive error in which the eye, when in a state of rest, does ...

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ABO Exam Prep Part 5-Solved 100% Correct Multifocal Designs

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Bifocals - ANSWER-This lens design is used for the correction of presbyopia & are needed to replace plus power which has been lost to the crystalline lens Reading addition - ANSWER-The power of the bifocal segment that is always plus Spherical component of the carrier lens - ANSWER-The power o...

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ABO EXAM REVIEW 2023

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What type of visual error is indicated by this Rx? Rx +2.00 -1.00 x 090 a. simple hyperopia b. compound hyperopic astigmatism c. compound myopic astigmatism d. mixed astigmatism - ANSWER-b. compound hyperopic astigmatism Increasing the diameter of a minus power lens always increases its: a. ...

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ABO Vocab Exam 2023

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Aberration + types of abberation - ANSWER-deviation from a single focus of light rays from one source; failure to bring light rays to a single focal point two types: chromatic and monochromatic Accomodation - ANSWER-the ability of the eye to adjust focus for varying distances Achromatic - ANS...

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ABO Study Guide 2023 with Complete Solutions

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3 eye layers/tunics - ANSWER-Layer #1- Protective Layer #2- Nourishing Later #3- Light Sensitive Cellulose Acetate (Zyle) - ANSWER-Non-flammable, durable, avail in diff colors Layer #1 - ANSWER-Sclera, Cornea, Anterior Chamber Layer 2 - ANSWER-Choroid, Ciliary Body, Iris, Crystalline Lens...

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ABO 2023 Sample Questions and Answers 100% Correct

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When light is refraction by a prism it is: a. Bent toward the apex b, Bent toward the base c. Not bent d. Reflected - ANSWER-B. Bent toward the base A prism always bends light toward its base. Prisms: I. Always bend light toward the base II. Always bend light toward the apex III. Cause ch...

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ABO NCLE EXAM SOLVED 100% CORRECT

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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 curvat...

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ABO Top Optician Test 1 Solved 100%

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What parts of the human eye can be related to the lens, focusing mechanism and film of a camera? A) Cornea, iris and retina B) Cornea, lens and iris C) Cornea, lens and retina D) Lens, iris and retina - ANSWER-C) Cornea, lens and retina What part of the retina lies on the visual axis? ...

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ABO Exam Prep Part 4- Solved 100%- Lens Materials & Coatings

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Index of refraction - ANSWER-The speed of light in air divided by the speed of light in material Specific gravity - ANSWER-The weight in grams of one cubic centimeter of any given material Abbe number - ANSWER-A relative measure of dispersion or color distortion of a lens; a.k.a. V-value 1....

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ABO exam prep part 1 glossary with complete solutions

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Accommodation - ANSWER-Focusing of the eye on a near object through relaxation of the ciliary muscle and thickening of the lens. Amblyopia - ANSWER-The loss of vision without any apparent disease of the eye. Ametropia - ANSWER-A refractive error in which the eye, when in a state of rest, does ...

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