ABO (ABO)

Single Vision - CORRECT ANS corrects for one distance Multifocal - CORRECT ANS Corrects with two or more prescriptions (or 'powers') Bifocal - CORRECT ANS lens having two focus strengths Trifocal - CORRECT ANS pertaining to having three focus strengths Calculating Prismatic Effects - CORRECT ANS 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 lens surfacing or, if the lens h...

Change a bifocal Rx to a single vision Rx - CORRECT ANS Add the bifocal power to the sphere powers. OD: -0.50 OS: -0.25-0.25x172 Add: +1.75 Turns intoOD: +1.25 OS: +1.50-0.25x172 Anisometropia - CORRECT ANS There is a difference of 3 diopters between both eyes; when the vision of the eyes differs by a large margin. Antimetropia - CORRECT ANS Refers to Rx's that differ in sign. Ex. OD: +0.25 OS: -0.75 Simple Hyperopia - CORRECT ANS The Rx will be a + sphere Simple Myopia - CORRECT A...

Combined oral contraceptives increase hepatic production of which serum globulins involved in coagulation - ANS factor VII, X, and fibrinogen Fox-Fordyce disease - ANS pruritic micro cystic disease that results from occlusion of apocrine sweat glands Tibolone - ANS SERM used for HRT, NOT first line benefits = vasomotor sx, bone density no effect on breast, uterus Lichen planus treatment - ANS topical/systemic corticosteroids, topical/oral cyclosporine, topical tacrolimus, hydroxychloroqu...

Prentice Rule - ANS (Power x distance in mm) /10 Cornea index of refraction - ANS 1.37 Tear Film, Vitreous index of refraction - ANS 1.33 Crystalline lens index of refraction - ANS 1.42 Optical Standard index of refraction - ANS 1.53 Crown Glass index of refraction - ANS 1.523 High index of refraction - ANS 1.74 CR-39 index of refraction - ANS 1.49/1.50 Poly index of refraction - ANS 1.586 Air - ANS 1.00 How fast does light travel through air - ANS 186,000 mi/sec MBS formula - ANS ED+...

1. When ordering a six inch temple, its corresponding millimeter value iswhich of the following? A. 135 mm B. 140 mm C. 145 mm D. 150 mm 2. What is the focal length of a 2 diopter lens? A. 500 cm B. 39.37 inches C. 500 mm D. 2 meters 3. Wavelengths are measured in A. Meters B. Decimeters C. Centimeters D. Nanometers 4. Which of the following has the shortest and therefore most harmful wave-length? A. UVC B. UVB C. UVA D. INFRARED 5. When two light wavesw are in "in phase" t...

ABO sample Questions and Answers 2023 with complete solution

ABO EXAM 100 QUESTIONS AND VERIFIED ANSWERS 2023 GRADED A+. 1. 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 2. 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 3. Nanometers: Wavelengths are measured in A. Meters B. Decimeters C. Centimeters D. Nanometers 4. UVC: Which of the following has the shortest and therefore most harmful...

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

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 being applied on the very tips of the temples. - Pressure is being ap...