What is refractive power - Study guides, Class notes & Summaries

ODP Spectacle Final Exam Questions and Answers All Correct When would a frontal angle be seen? - Answer-While observing the nose from the front What is one possible reason to use a material that naturally creates more power? - Answer-To create a flatter curve The conjunctiva is considered: - Answer-A mucous membrane A patient who enjoys archery often finds that the target seems difficult to see clearly. What tint added to his spectacles may help this situation? - Answer-Yellow Which...

FOA CFOT Certification Fiber optics Questions and Answers True - CORRECT ANSWER-A fiber optic inspection microscope can increase the danger of high powered light sources by focusing the light out of a fiber into your eye. True - CORRECT ANSWER-The fiber optic power meter measures absolute power in dBm (dB referenced to 1 mw) and, when used with a light source, measures insertion loss in dB. Total internal reflection - CORRECT ANSWER-Confining light in a material by surrounding it by...

ABO advance study guide test questions and answers verified 100% When taking seg height measurements, which of the following situations could result in a parallax error? - Patient sitting/ dispenser standing erect Which of the following is not significant in identifying the problem of vertical imbalance? - Patient's age Which of the following elements is NOT critical when determining vertical imbalance? - Lens power in the 180 degree meridian A prism will displace the object be...

To widen the distance between the pads of a frame or mounting, bent the pad arms: - Outward/Angle the temples upward from the end pieces. A reverse slab-off is molded with base _____ prism in the near portion of the lens. - Down Multifocal height is usually determined by measuring from the: - Lower edge of the lens. If the pad arms are lengthened, this adjustment will: - Push the front out more. A semi-rimless mounting consists of: - A center piece with lens bars connecting the end p...

Test Bank for Essential Cell Biology 5th Edition Alberts Hopkin ESSENTIAL CELL BIOLOGY, 5th EDITION CHAPTER 1: CELLS: THE FUNDAMENTAL UNITS OF LIFE Unity and Diversity of Cells 1-1 Living systems are incredibly diverse in size, shape, environment, and behavior. It is estimated that there are between 10 million and 100 million different species. Despite this wide variety of organisms, it remains difficult to define what it means to say something is alive. Which of the following can be desc...

An optical fiber works based off of a principle known as; Total Internal Reflection. The bending of light as it passes from one transparent material into another which has a different refractive index is what? Refraction. Light is electromagnetic radiation in the wavelength range including visible, ultraviolet, X-rays and _______________. Infrared. What are the three parts of a typical optical fiber? Core, Cladding, buffer Coating. (3 C's) A simple fiber optic sy...

Biology 123 lab exam 1 questions and answers correct and verified 100%Biology 123 lab exam 1 questions and answers correct and verified 100%Biology 123 lab exam 1 questions and answers correct and verified 100%Biology 123 lab exam 1 questions and answers correct and verified 100% total magnification= ocular magnification + objective magnification - correct answers-what is the formula for total magnification? ocular and objective - correct answers-what are the two types of lens on a microsc...

OCANZ Optometry final exam Questions and Answers 100% Correct Answers emmetropia - CORRECT ANSWER-optical state of the eye in which parallel light enters the eye and focuses on the retina without the need for any corrective lenses or accommodation; this is the absence of refractive error and the "normal" or ideal state of the eye ametropia - CORRECT ANSWER-refractive error, "abnormal" optical state of the eye in which parallel light rays enter the eye and focus on an area other t...

OCANZ Optometry final exam Questions and Answers 100% Correct Answers emmetropia - CORRECT ANSWER-optical state of the eye in which parallel light enters the eye and focuses on the retina without the need for any corrective lenses or accommodation; this is the absence of refractive error and the "normal" or ideal state of the eye ametropia - CORRECT ANSWER-refractive error, "abnormal" optical state of the eye in which parallel light rays enter the eye and focus on an area other t...

The refractive astigmatism indicated by the RX +1.50 -1.75 x 35 is - Precise 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? - Precise Answer -.75 -.50 x 120 The Geneva lens measure is designed to measure - Precise Answer Lens curvature The focal length of a +5.00 diopter lens is - Precise Answer 20 cm The p