Ncle stuvia - Study guides, Class notes & Summaries

Steep Fluorescein Pattern - ANSWER-Bright green pooling center, very faint green pooling on diameter of lens Flat Fluorescein Pattern - ANSWER-Bright green pooling on diameter of lens, very faint green in center Against-the-rule Astigmatism Pattern - ANSWER-Bright green pooling horizontally, faint green pooling vertically With-the-rule Astigmatism Pattern - ANSWER-Bright green pooling vertically, faint green pooling horizontally Prism Ballast - ANSWER-Common technique to stabilize le...

Glossary NCLE Exam Questions and Answers 100% Accurate Glossary NCLE Exam Questions and Answers 100% Accurate Glossary NCLE Exam Questions and Answers 100% Accurate Glossary NCLE Exam Questions and Answers 100% Accurate Accommodation - ANSWER-The ability of the crystalline lens to adjust power to provide retinal focus of images of objects closer than optical infinity Aphakia - ANSWER-Absence of the crystalline lens. Astigmatism - ANSWER-A refractive defect where the refractive su...

NCLE Test Review Questions and Answers 100% Correct NCLE Test Review Questions and Answers 100% Correct NCLE Test Review Questions and Answers 100% Correct Test that measures the quality of tears - ANSWER-B.U.T. Test (Break up time) What is the O2 Permeability - ANSWER-DK values of a lens What are the disadvantages of Soft Lenses? - ANSWER-Doesn't correct irregular astigmatism, favors deposit formation

Adnexa Oculi - ANSWER-are the accessory structure that are considered part of the eye, but not part of the eyeball itself. these structures include: eyelids, eyelashes, tears, lacrimal apparatus, accessory glands and extrinsic muscles and orbit. everything outside of the eyeball. Meibomian Glands - ANSWER-Glands of the eyelids. sebaceous gland in the eyelid behind the gray line Glands of Zeiss - ANSWER-Glands of the eyelids. sebaceous oily gland and is located around the eyelid cilia and f...

Which of the following prescriptions indicates against-the-rule astigmatism? a)-4.50 +1.00 x75 b)-4.50 +1.00 x 180 c)-4.50 -1.00 x 165 d)4.50 -1.00 x 180 - ANSWER-a)-4.50 +1.00 x75 When a keratometer is being calibrated, which of the following targets will provide the most reliable result? a)the single-cut anterior surface of a high-plus lens b)a perfectly flat highly polished mirror c) a set of steell balls of known radii d)the unfinished posterior surface of a low-minus lens - A...

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The posterior optical zone will directly affect the lens to cornea relationship of a rigid gas permeable lens. If the posterior optical zone is steepened, it will increase the sagittal depth. If it is flattened, it will decrease the sagittal depth. Changing the power, which is accomplished by changing the anterior optical zone, will not affect the sagittal depth of the lens, nor will changing its edge design. - ANSWER-1. The sagittal depth of a rigid gas permeable contact lens can be altered wit...

NCLE Practice Test 2024 Questions and Answer 100% Correct NCLE Practice Test 2024 Questions and Answer 100% Correct NCLE Practice Test 2024 Questions and Answer 100% Correct NCLE Practice Test 2024 Questions and Answer 100% Correct Hydrogen peroxide care systems: A. Should not be used to disinfect FDA group IV lenses. B. Is more effective against viruses and fungi than most chemical disinfection systems. C. Does not require a red tip on its container, since it does not cause permane...

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Diffused Illumination - ANSWER--Uses widest slit, longest aperture -Light source positioned at an angle of 40º-50º -Used to view overall areas, to observe the ocular adnexa, cornea, sclera, lids, conjunctiva, lens surface, and CL fitting characteristics Direct Illumination - ANSWER--Most important/useful illumination -Light source positioned at an angle of 40º-50º to oculars -Light beam and oculars are focused in coincidence on area being evaluated -The difference in the illumination...