ABO

ABO Practical Exam Questions And Correct Answers, With Complete Verified Solution. Updated 2024 Single Vision corrects for one distance Multifocal Corrects with two or more prescriptions (or 'powers') Bifocal lens having two focus strengths Trifocal pertaining to having three focus strengths Calculating Prismatic Effects 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 ...

ABO Practical Exam Questions And Correct Answers, With Complete Verified Solution. Cancelling effect- subtract prism amounts BU/BU BD/BD BI/BO Powers between 0.00 & +/- 3.00 Read in 1/8 diopters .12 .37 .62 .87 Lensometer is also referred to as Lensmeter, focimeter, vertometer To focus eyepiece 1) while turned off. Place white sheet of paper against lens stop. 2) turn focus ring all the way counter clockwise,and then back clockwise until sharp. 3) remove paper and turn lensomet...

ABO Practice Exam Questions and Answers 2023/2024 (Actual exam questions/frequently tested questions and answers)100% 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 appl...

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 ...

ABO Practice Test Questions And Correct Answers, Over 400 Multiple choice Questions And Answers. 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 d. front curve, back curve, thickness and index Toric transposition shows: a. lens thickness b. power in principal meridians c. the...

ABO practice exam ophlthalmic optics, Exam Questions And Correct Answers. . Columbia Resin-39. . Lenses that commonly referred to as plastic are made of a material called ___________ a. Zylonite. b. Columbia Resin-39. c. Hivex. d. Polycarbonate. Runs perpendicular to The "normal" is an imaginary line that ________________ the lens surface. a. Refracts through b. Runs parallel to c. Runs perpendicular to d. Reflects off of .Simple hyperopic astigmatism . +3.00 -3.00 x 180 is an indicati...

ABO EXAM PRE-TEST QUESTIONS AND CORRECT ANSWERS. COMPLETE VERIFIED SOLUTION 2024 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...

ABO exam Exam Questions And Correct Answers, With Complete Verified Solution. 100% Correct. vitreous humor the transparent, colorless mass of soft, gelatinous material which fills the eyeball behind the lens: 1.42 the index of refraction of the crystalline lens is: 1.37 the cornea has an index of refraction of: 6 the extra-ocular muscles are inserted into the sclera and serve to rotate the eye in all possible directions. There are _______________ of these muscles in each eye. sclera a...

ABO Exam Questions and Correct Answers, Complete Verified Solution. 100% Verified The extra-ocular muscles are inserted into the sclera and serve to rotate the eye in all possible directions. There are _______of these muscles. Six The fibrous tunic is comprised of the: Sclera and cornea Fusion occurs: In the brain The aqueous fluid is continually being manufactured by: The ciliary body The ability of the eye to bring objects of varying distances to focus on the retina is known as: Ac...

ABO Exam Practice Questions And Correct Answers, With Complete Verified Solution. 100% 2024 The part of the lensometer which is capable of measuring the amount of prism is the: A. reticle B. axis wheel C. spotting device D. power drum A. reticle Which of the following is a lensometer not capable of measuring? A. sphere power B. cylinder power C. base curve D. position of optical center C. base curve You have been asked to neutralize a lens. After placing it in the lensometer, ...