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Exam (elaborations)
Optician Practical Exam With Accurate Answers
Preview 2 out of 11 pages
OPTICIAN PRACTICAL EXAM WITH ACCURATE ANSWERS A lens focal length may be altered by? - correct answerschanging the curvature of one surface what controls the amount of light that enters the eye? - correct answersIris lights changing direction as it passes from one medium to another is called what? - correct answersrefraction meniscus, equiconcave and flat concave are all, what? - correct answersminus lenses what term is used to describe the eyes tendency to TURN from its normal position? - correct answersphoria refractive condition where light focuses directly ON the retina...? - correct answersemmetriopia one convex and one concave surface is known as... - correct answersa meniscus lens
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