ABO sample Questions

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 FalseFalse If the wearer complains that the glasses feel snug but still slip down the nose, one likely cause is that: A. The frame i...

Cancelling effect- subtract prism amountsBU/BU BD/BD BI/BO Powers between 0.00 & +/- 3.00Read in 1/8 diopters .12 .37 .62 .87 Lensometer is also referred to asLensmeter, focimeter, vertometer To focus eyepiece1) while turned off. Place white sheet of paper against lens stop. 2) turn focus ...

Change a bifocal Rx to a single vision RxAdd 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 AnisometropiaThere is a difference of 3 diopters between both eyes; when the vision of the eyes differs by a large margin. Antim...

150 mmWhen 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 mmWhat is the focal length of a 2 diopter lens? A. 500 cm B. 39.37 inches C. 500 mm D. 2 meters NanometersWavelengths are measured in A. Meters...

150 mmWhen 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 mmWhat is the focal length of a 2 diopter lens? A. 500 cm B. 39.37 inches C. 500 mm D. 2 meters NanometersWavelengths are measured in A. Meters...

150 mmWhen 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 mmWhat is the focal length of a 2 diopter lens? A. 500 cm B. 39.37 inches C. 500 mm D. 2 meters NanometersWavelengths are measured in A. Meters...

When light is refraction by a prism it is: a. Bent toward the apex b, Bent toward the base c. Not bent d. ReflectedB. 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 Disp...

150 mmWhen 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 mmWhat is the focal length of a 2 diopter lens? A. 500 cm B. 39.37 inches C. 500 mm D. 2 meters NanometersWavelengths are measured in A. Meters...

The ability of the eye to focus on objects at different distancesAccommodation Fresnel opticsPress on prism Frame material that resist stretching with heatNylon Bridge type that spreads weight over the greatest areaSaddle Amount of jump image is not affected byThe seg inset Double visionDiplopi...

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 FalseFalse If the wearer complains that the glasses feel snug but still slip down the nose, one likely cause is that: A. The frame i...