Abo stuvia - Study guides, Class notes & Summaries

When taking seg height measurements, which of the following situations could result in a parallax error? - ANSWER Patient sitting/ dispenser standing erect Which of the following is not significant in identifying the problem of vertical imbalance? - ANSWER Patient's age Which of the following elements is NOT critical when determining vertical imbalance? - ANSWER Lens power in the 180 degree meridian A prism will displace the object being viewed towards its ________. - ANSWER Apex A ...

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 - ANSWER d. front curve, back curve, thickness and index Toric transposition shows: a. lens thickness b. power in principal meridians c. the power of the ADD d. the lens diameter - ANSWER b. power in principal meridians Increa...

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 the very tips of the temples. - ANSWER Pr...

When discussing thick lenses, the factors which are considered in computing the lens power are: - ANSWER Front curve, back curve, thickness and index Which crown glass bifocal type will have the least chromatic aberration? - ANSWER A "one piece" lens Toric transposition shows: - ANSWER Power in principal meridians Increasing the diameter of a minus power lens always increases its: - ANSWER Weight The optical center of a round segment is located: - ANSWER In the geometric center of ...

What type of visual error is indicated by this Rx? Rx +2.00 -1.00 x 090 a. simple hyperopia b. compound hyperopic astigmatism c. compound myopic astigmatism d. mixed astigmatism - ANSWER b. compound hyperopic astigmatism Increasing the diameter of a minus power lens always increases its: a. vertex power b. center thickness c. weight d. refractive index - ANSWER c. weight The optical center of a round segment is located: a. at the very top of the segment b. in the geometric cente...

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 ...

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ABO NCLE Exam Questions and Answers 100% Accurate ABO NCLE Exam Questions and Answers 100% Accurate ABO NCLE Exam Questions and Answers 100% Accurate ABO NCLE Exam Questions and Answers 100% Accurate The refractive astigmatism indicated by the RX +1.50 -1.75 x 35 is - ANSWER-Mixed The patient's RX is -1.75 -.50 x 120 with a +2.00 ADD standard trifocal. What is the power through the intermediate? - ANSWER--.75 -.50 x 120 The Geneva lens measure is designed to me...

ABO Exam Questions and Answers (Graded A)ABO Exam Questions and Answers (Graded A)ABO Exam Questions and Answers (Graded A)ABO Exam Questions and Answers (Graded A)ABO Exam Questions and Answers (Graded A)The extra-ocular muscles are inserted into the sclera and serve to rotate the eye in all possible directions. There are _______of these muscles. - ANSWER-Six The fibrous tunic is comprised of the: - ANSWER-Sclera and cornea Fusion occurs: - ANSWER-In the brain The aqueous fluid is cont...

*Patient Services When Patient is Not Ill or Injured* - ANSWER In healthcare, patients receive services even though they are not ill or injured. Patients may seek: (1) annual physical examinations, (2) vaccinations, (3) screening examinations, (4) follow-up care, or (5) maternity care. Physicians need to track patient's information about: (1) patients' health status, (2) patients' health history, (3) and health risks that do not present current problems but could in the fu...