Nao exam - Study guides, Class notes & Summaries

The correct transposed RX for -1.00-.50x37 is? - ACCURATE ANSWERS -1.50 + 0.50 x 127 The correct transposition for +2.00 -2.00 x 060 is? - ACCURATE ANSWERS Plano +2.00 x 150 An uncut lens must be at least _______ mm in diameter to allow the edging of a 54 mm round lens decentered 3 mm in: - ACCURATE ANSWERS 60 mm A +3.00 sphere lens has a front base curve of +6.25. What is the back surface curve? - ACCURATE ANSWERS -3.25 A -2.00 -1.00 x 045 lens has a front base curve of +6.25. What ...

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NAO Course II Exam Study Guide Solutions Corpuscular theory of light - ANSWER-light consists of tiny particles of corpuscles, emitted by light source and absorbed by the eye- Newton Electromagnetic wave theory - ANSWER-light travels in a series of waves moving outward from light source- James Clark Maxwell Frequency - ANSWER-the number of wavelengths that pass by a point each second Beam - ANSWER-group of pencils all pointing on light source Pencil - ANSWER-group of ray emanating from li...

NAO VOLUME 3 Exam Questions and Answers The correct transposed RX for -1.00-.50x37 is? - ANSWER--1.50 + 0.50 x 127 The correct transposition for +2.00 -2.00 x 060 is? - ANSWER-Plano +2.00 x 150 An uncut lens must be at least _______ mm in diameter to allow the edging of a 54 mm round lens decentered 3 mm in: - ANSWER-60 mm A +3.00 sphere lens has a front base curve of +6.25. What is the back surface curve? - ANSWER--3.25 A -2.00 -1.00 x 045 lens has a front base curve of +6.25. What are t...

NAO Book 1 Exam Study Guide Questions and Answers Reflex tears - ANSWER-Produced by lacrimal glands & are caused by stimulus such as coughing, sneezing, strong smells & emotions Layers of tear film (outer-innermost) - ANSWER-Lipid, aqueous, mucin Tear lake, tear prism, tear meniscus - ANSWER-Collection of the thin film of tears on the lower lid margin Ectropia - ANSWER-Eyelids turn outward Entropion - ANSWER-Eyelids turn inward Conjunctiva - ANSWER-Mucous membrane lining lids & globe G...

The amount of reflection of each surface of CR-39 plastic lenses is approximately: - ACCURATE ANSWERS 4% The absorption of light in lenses is classified by two variables. What are they? - ACCURATE ANSWERS Tint and lens transmission The denser the tint in a lens, the _____: - ACCURATE ANSWERS Less transmission of light through the lens Standard transmission in sunlenses should range between: - ACCURATE ANSWERS 15% and 30% If a person has exposure to sunlight at least 2 hours or more d...

NAO Volume 2 Exam Questions and Answers Absorption - ANSWER-in terms of light and lens- when a ray of light enters a lens some of the light will not completely travel through the lens Deviation (Angle of) - ANSWER-the angle a ray of light is changed from its original path Diffuse Relection - ANSWER-a reflection from a rough surface- the reflection does not produce a clear image Incidence (Angle of) - ANSWER-the angle which a ray of light makes the surface of a refracting medium Reflecti...

NAO VOLUME IV EXAM QUESTIONS AND ANSWERS The amount of reflection of each surface of CR-39 plastic lenses is approximately: - ANSWER-4% The absorption of light in lenses is classified by two variables. What are they? - ANSWER-Tint and lens transmission The denser the tint in a lens, the _____: - ANSWER-Less transmission of light through the lens Standard transmission in sunlenses should range between: - ANSWER-15% and 30% If a person has exposure to sunlight at least 2 hours or more durin...

NAO Vol 1-1-3 Evolution of Opticianry Exam Study Guide Solutions