ABO Study guides, Class notes & Summaries

Math for ABO test Latest Questions and Answers(American Board of Opticianry (ABO) A Box: 53 DBL: 15 ED: 55 PD: 30/32 OD: 68/2 =34 OS: 68/2=34 What is the MBS for the rt and left lens? {Answer: - OD: 68/2 =34 OS: 68/2=34 Decentration: Frame PD- PT PD OD: 34-30=4 decentered OS: 34-32= 2 decentered OD: MBS=ED+(2xDecenter)+2 MBS=55+ 8 (2x4)+2=65mm OS: MBS=ED+(2x decenter)+2 MBS=55+4 (2x2)+2=61mm OD-65mm blank OS: 61MM blank What is Prentice rule used for? {Answer: - To (Power x di...

ABO EXAM PRE-TEST 2024 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-Wavelengths are measured in A. Meters B. Decimeters C. Centimeters D. Nanometers UVC -Answer-Which of the following has the shortest and therefore most harmful wavelength? A. UVC ...

ABO practice test questions and answers 2024 Which of the following is NOT a characteristic of a Plus Lens: A) Magnifies B) Real Focal Length C) With Motion D) Strengthens as Vertex Increases -Answer-C) With Motion The weight of the standard dress safety drop ball according to the FDA regulations is: A) 72 ounces B) 6.5 ounces C) 8.7 ounces D) .56 ounces -Answer-D) .56 ounces Which of the following refers to the normal eye? A) Emmetropic B) Exophoric C) Anisometropic D) Prebyopic ...

ABO PRACTICE EXAM PART ONE 2024 the wavelength of the infrared waves in the electromagnetic spectrum are -Answer- longer than visible red light waves the Geneva Lens Measure is calibrated for a refractive index of -Answer-1.530 A lens made from 2 convex surfaces -Answer-has against motion A lens reads +4.25D in the vertometer. If the ocular curve is -4.00D, what is the front base curve? -Answer-+8.25D Which of these front base curves would be suitable for a -300D meniscus lens? - Answer-...

abo exam questions and answers 2024 vitreous humor - Answer-the transparent, colorless mass of soft, gelatinous material which fills the eyeball behind the lens: 1.42 - Answer-the index of refraction of the crystalline lens is: 1.37 - Answer-the cornea has an index of refraction of: 6 - Answer-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 and cornea - Answer-the ...

ABO sample Questions with Complete Solutions 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 chromatic Dispersion IV. Move the image toward the apex V. Are sometimes prescribed for muscle problems -Answer-I. Always bend light toward base III. Cause...

ABO TEST 2024 WITH COMPLETE SOLUTIONS The ability of the eye to focus on objects at different distances -Answer-Accommodation Fresnel optics -Answer-Press on prism Frame material that resist stretching with heat -Answer-Nylon Bridge type that spreads weight over the greatest area -Answer-Saddle Amount of jump image is not affected by -Answer-The seg inset Double vision -Answer-Diplopia Modern AR coated lenses transmit how much light -Answer-99.5% Shortest wavelength -Answer-Violet The c...

ABO practice exams with 100% correct answers 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: 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 being applied on ...

ABO Practical Exam Questions and Answers 2024 Cancelling effect- subtract prism amounts -Answer-BU/BU BD/BD BI/BO Powers between 0.00 & +/- 3.00 -Answer-Read in 1/8 diopters .12 .37 .62 .87 Lensometer is also referred to as -Answer-Lensmeter, focimeter, vertometer To focus eyepiece -Answer-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 lensometer on 4) ...

ABO REVIEW 2024 QUESTIONS AND ANSWERS Sclera -Answer-Tough, white outer coat of the eyeball myopia -Answer-nearsightedness; the condition in which parallel rays of light are brought into focus in front of the retina, rather than on it reflection -Answer-light that bounces back refraction -Answer-when the direction of light changes as it passes from one medium to another(bending of light) presbyopia -Answer-Age of 40 need reading glass crystalline lens diminishes frame difference -Answer...