Ncle exam questions - Study guides, Class notes & Summaries

NCLE Exam Questions and All Correct Answers Cones - Answer-The cells in the retina that are responsible for fine detail and color vision A concern with the use of extended wear lenses is: - Answer-Polymegathism ___________________ is a contraindication for fitting contact lenses? - Answer-Anesthetic cornea A protein found in the tear film that is a potent germ killer is: - Answer-Lysozyme Anisocoria - Answer-Unequal pupil size Ciliary processes - Answer-Responsible for the majo...

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A refractive error that prevents the light rays from coming to a single focus on the retina because of different degrees of refraction in the various meridians of the eye. ~ Astigmatism Condition in which the steepest corneal meridian is in the horizontal plane. 0-30 degrees or 150-180 degrees ~ Against the rule Astigmatism Condition in which the steepest corneal meridian is in the vertical plane. 60-120 degrees ~ With the rule Astigmatism Regular astigmatism in which the princi...

NCLE Exam Questions and Correct Answers First person to be awarded patent for corneal lens made of PMMA - Answer-Kevin Tuohy Until 1930 all contacts where made of what material - Answer-Gelatin polycon 1 was developed by who? - Answer-Seidner the Biggest disadvantage of PMMA was its lack of what - Answer-gas permeability Which decade of the twenty first century where contacts marketed in - Answer-50s From the materials of choice for contacts was - Answer-PMMA The first comp...

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ABO NCLE EXAM QUESTIONS WITH 100% CORRECT ANSWERS.

Contact Lens – NCLE Exam Questions and Answers 100% Pass Increasing the sagittal depth of a rigid lens will: - Correct Answer ️️ -Not change the effective power of the lens If the diameter of an R.G.P. lens is 9.2 mm and is fitting too steep on the cornea, what adjustment could be made to the lens? - Correct Answer ️️ -Decrease the diameter The DK value of a lens is: - Correct Answer ️️ -Oxygen permeability of the material All of the following are functions of a wetting solu...

base curve - Answer refers to the radius of curvature of the central posterior surface of the lens. It may be expressed in diopters of surface power (D) or in millimeters (mm) of radius or curvature. optical zone - Answer the chord diameter over which the base curve extends on the posterior surface of the contact lens, described in millimeters secondary or intermediate curves - Answer lies between the base curve and the peripheral curve on the posterior lens surface, usually 0.70m...

Glossary NCLE Exam Questions and Answers 2023

Accommodation - The ability of the crystalline lens to adjust power to provide retinal focus of images of objects closer than optical infinity annular bifocal contact - A lens with distance portion ground into the center of the lens and the near portion ground into the periphery Anterior Bevel/CN Beve - Angulation applied to the anterior surface of a lens to reduce edge Thickness Anterior Optical Zone (AOZ) - Diameter of the anterior power curve Aphakia - Absence of the crystalline lens. ...