ABO EXAM PRE-TEST| 100 Questions| Answers| Verified 100%

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 B. UVB C. UVA D. INFRARED Compound one another - ANSWER When two light wavesw are in "in phase" they will A. Destroy on another B. Reduce each front by half C. Compound one another D. None of the above Plus or minus 3 degrees - ANSWER The cylinder axis tolerance for a 1.00D cylinder according to ANSI Z80.1 is A. Plus or minus 7 degrees B. Plus or minus 5 degrees C. Plus or minus 3 degrees D. Plus or minus 2 degrees Thicker temporally - ANSWER A plus lens decentered "out" will result in a finished lens which is A. Balanced B. Thicker temporally C. Thicker nasally D. Uniform in edge thickness Thicker nasally - ANSWER A minus lens decentered "out" will result in a finished lens which is A. Balanced B. Thicker temporally C. Thicker nasally D. Uniform in edge thickness 8% - ANSWER An uncoated normal plastic lens will reflect approximately ______% of light. A. 2% B. 4% C. 8% D. 12% Biconcave - ANSWER A lens having a minus curve on both front and back is called A. Toric B. Meniscus C. Biconvex D. Biconcave 50% - ANSWER Give the RX +1.00 +1.00 x 45, how much of the +1.00 cylinder is in the effect at axis 90? A. 100% B. 70% C. 50% D. 0 97% if its power - ANSWER 80 degrees from the specified axis, a cylinder will show A. 5% of its power B. 10% of its power C. 50% of its power D. 97% of its power Hyperope - ANSWER The type of patient often bothered by large magnified eye look is a A. Myope B. Persbyope C. Hyperope D. Emmetrope Size - ANSWER A Box O graph is used to measure lenses for A. Axis B. Power C. Thickness D. Size Double D - ANSWER A presbyopic electrician that works on overhead wiring would benefit most from A. Executive bifocal B. Near only readers C. Double D D. Round Segment Round segment rotated to the temporal side of the lens - ANSWER A presbyopic golfer, when addressing the ball, is troubled by the placement of this normal bifocal. Which of the following would pose the best solution as a recreational golf glasses? A. Executive bifocal fit 1mm lower than standard B. Double D C. Quadrifocal D. Round segment rotated to the temporal side of the lens Internal Rotator - ANSWER Which of the following is NOT one of the 6 muscles responsible for the movement of the eye? A. Superior Rectus B. Inferior Rectus C. Internal Rotator D. Inferior Oblique 1.523 - ANSWER The index of refraction of spectacle crown glass is A. 1.49 B. 1.523 C. 1.53 D. 1.59 Straight Top - ANSWER Whch of the following glass lenses is a fused bifocal? A. Executive B. Progressive C. Straight Top D. Ultex 1 diapter base out/each eye - ANSWER The P.D. written on the order is mistakenly noted as 70mm, when the actual measurement should be 66mm. What unwanted prism would be found if the distance prescription is O.U. +5.00 shpere. A. 1 diapter base out/each eye B. 1 diapter base in/each eye C. 2 diapters out/each eye D. 2 diapters in/each eye Not possible - ANSWER If the RX is +2.00 -4.00 x45, it would be necessary to decenter the lens ______ to create 1 diapter of base out prism. A. 2mm B. 4mm C. 6mm D. Not possible Silver halide - ANSWER The element in photogray lenses that is responsible for the lightening and darkening reaction is A. Silver nitrade B. Ferrous oxide C. Silver halide D. Flint Anti-reflective coating - ANSWER Which of the following would provide the greatest benefit to a night driver? A. Polaroid B. Blue Blocker C. Anti-reflective coating D. Polycarbonate Base up prismatic effect - ANSWER A minus lens moved downward from the primary position will result in A. Base up prismatic effect B. Base down prismatic effect C. Base in prismatic effect D. Base out prismatic effect -9.50 - ANSWER A patient refracted at 15mm is prescribed a -10.00 shpere. The dispenser finds that the actual fitting distance will be at 10mm. What should the compensated lens power be? A. -9.50 B. -9.75 C. -10.75 D. -10.50 1.8 diapters base in - ANSWER A lens which reads +3.00 -2.00 x180 is decentered in 6mm too much. How much horizontal prism is created by this error. A. 1.8 diapters base in B. 1.8 diapters base out C. .6 diapters base in D. .6 diapters base out 4 diapters of prism base in - ANSWER If a pair of lenses are gound with diapters of base in prism in each lens, the patient will experience A. 4 diapters of prism base in B. 2 diapters of prism base out C. No prism D. None of the above One diapter - ANSWER Given a lens with a focal length of 1000mm / determine the power of the lens. A. One diapter B. Five diapters C. Ten diapters D. One hundred diapters 300-380mm - ANSWER Which wavelengths of light have been indicated as contributors to the onset of cataracts? A. 700-800 nm B. 400-550 nm C. 300-380 nm D. 100 - and below nm Compound Hyperopic - ANSWER The refractive astigmatism indicated by the RX +1.50 -1.00 x 180 is A. Compound Hyperopic B. Mixed C. Simple Myopic D. Antimetropic Mixed - ANSWER The refractive astigmatism indicated by the RX +1.50 -1.75 x 35 is A. Compound Hyperopic B. Mixed C. Simple Myopic D. Antimetropic -.75 -.50 x 120 - ANSWER The patient's RX is -1.75 -.50 x 120 with a +2.00 add standard trifocal. What is the power through the intermediate. A. -1.25 -.50 x 120 B. -.75 -.50 x 120 C. -.75 -.50 x 30 D. -1.00 -.50 x 150 Lens Curvature - ANSWER The Geneva lens measure is designed to measure A. Path length B. Refractive efficiency C. Focal length D. Lens Curvature 20 cm - ANSWER The focal length of a +5.00 Diapter lens is A. 20 cm B. 50 cm C. 39.37 inches D. 2 meters Anisometropia - ANSWER The problem of prismatic imbalance at the reading level is called A. Antimetropia B. Anisometropia C. Anisekonia D. Emmetropia 20/15 - ANSWER Which of the following indicates the most acute distance vision? A. 20/20 B. 20/15 C. 20/30 D. 20/25 Vertex Compensation - ANSWER Which of the following is not a potential correction for vertical balance? A. Slab off B. Near only readers