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NAO Actual Exam Questions With Reviewed 100% Correct Detailed Answers Guaranteed Pass!! 1. 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 2. Deviation (Angle of) - ANSWER its original path 3. Diffuse Relection - ANSWER the angle a ray of light is changed from a reflection from a rough surface- the reflection does not produce a clear image 4. Incidence (Angle of) - ...

NAO Actual Exam Questions With Reviewed 100% Correct Detailed Answers Guaranteed Pass!! 1. Reflex tears - ANSWER Produced by lacrimal glands & are caused by stimulus such as coughing, sneezing, strong smells & emotions 2. Layers of tear film (outer-innermost) - ANSWER 3. Tear lake, tear prism, tear meniscus - ANSWER of tears on the lower lid margin 4. Ectropia - ANSWER 5. Entropion - ANSWER 6. Conjunctiva - ANSWER Eyelids turn outward Eyelids turn i...

NAO Actual Exam Questions With Reviewed 100% Correct Detailed Answers Guaranteed Pass!! 1. Abbe number - ANSWER will produce 2. Abbe Value - ANSWER ranges 20-60 tells us how much chromatic aberration a lens the reciprocal of the dispersive power of the lens 3. Higher the Abbe #... - ANSWER 4. Abbe Value for: Crown Glass CR-39 Polycarbonate Trivex Hard Resin 1.67 - ANSWER the less chromatic dispersion occurs Crown Glass-59 CR-39-58 POly-29-32 ...

NAO Actual Exam Questions With Reviewed 100% Correct Detailed Answers Guaranteed Pass!! 1. What is chromatic Aberration? - ANSWER material when light passes through it. Color distortion due to the 2. Polycarbonate is the softest spectacle lens material. - ANSWER 3. How are glasses lenses hardened? - ANSWER TRUE Heat treating is done in 2 3 minutes in a small furnace and chemical treating is done by immersing is done by immersing lenses in molten salt. 4. How l...

NAO Actual Exam Questions With Reviewed 100% Correct Detailed Answers Guaranteed Pass!! 1. What portion of the UV spectrum is not harmful to the eye - ANSWER UV-C 2. Complete the following sentence: Protection from potential eye damage is not a luxury, it is a - ANSWER Medical Necessity 3. Which Patient group needs sunwear the most - ANSWER everyone 4. A _______ is a short. memorable statement that places specific ideas in the mind of the patient - ANSWER Sou...

NAO Actual Exam Questions With Reviewed 100% Correct Detailed Answers Guaranteed Pass!! 1. Glazing is a term used to indicate _____ - ANSWER when an anti-reflective lens is tinted A defect that occurs 2. How much decentration per lens would e required for distance vision if the frame measures: A =51 B=47 DBL=16, patient PD=61/57? - ANSWER 3.0mm each eye 3. How must a prescription safety frame be marked to denote it meets the new impact standards? - ANSWER Z87+ 4...

NAO VOLUME 3 EXAM QUESTIONS WITH CORRECT ANSWERS 100% PASS The correct transposed RX for -1.00-.50x37 is? - Answers -1.50 + 0.50 x 127 The correct transposition for +2.00 -2.00 x 060 is? - 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: - Answers 60 mm A +3.00 sphere lens has a front base curve of +6.25. What is the back surface curve? - Answers -3.25 A -2.00 -1.00 x 045 lens has a front base curv...

NAO VOLUME 3 PRACTICE EXAM QUESTIONS AND 100% CORRECT ANSWERS. 2025

NAO VOLUME IV Exam Questions and Answers 100% Solved | Latest Update The amount of reflection of each surface of CR-39 plastic lenses is approximately: - 4% The absorption of light in lenses is classified by two variables. What are they? - Tint and lens transmission The denser the tint in a lens, the _____: - Less transmission of light through the lens Standard transmission in sunlenses should range between: - 15% and 30% If a person has exposure to sunlight at least 2 hours or more du...