ABO Exam| Q-Bank| All Questions Answered 100% Correct / Verified Answers (ABO (American Board of Opticianry))

ABO Exam| Q-Bank| All Questions Answered 100% Correct / Verified Answers (ABO (American Board of Opticianry)) Wavelengths that are "in phase" produce: A. destructive interference B. high frequencies C. a big reflection D. no reflection (Ans: - C. a big reflection Anti-reflective coating causes an ______________ situation. (Ans: - out of phase (destructive interference) Minus lenses combine prisms: A. base to base B. apex to apex C. apex to base D. front to bakc (Ans: - B. apex to apex Characteristics of a plus lens include: A. "with motion" B. real focal point C. concave in shape D. strengthens as vertex shortens (Ans: - B. real focal point A prism re-directs light towards its ______________ while the object viewed will appear to be displaced towards the ________________. (Ans: - Base; Apex. In mixed astigmatism: A. two focal lines form in front of the retina B. one focal line forms on the retina and the other behind the retina C. one focal line forms on the retina and the other in front of the retina D. one focal line forms in front of the retina and the other forms behind the retina (Ans: - D. one focal line forms in front of the retina and the other forms behind the retina In compound hyperopic astigmatism: A. two focal lines form in front of the retina B. two focal lines form behind of the retina C. one focal line forms on the retina and the other in front of the retina D. one focal line forms in front of the retina and the other forms behind the retina (Ans: - B. two focal lines form behind of the retina In simple hyperopic astigmatism: A. two focal lines form in front of the retina B. one focal line forms on the retina and the other behind the retina C. one focal line forms on the retina and the other in front of the retina D. one focal line forms in front of the retina and the other forms behind the retina (Ans: - B. one focal line forms on the retina and the other behind the retina -1.50 -0.75 X 90 is an example of : A. mixed astigmatism B. compound myopic astigmatism C. simple myopic astigmatism D. simple hyperopic astigmatism (Ans: - B. compound myopic astigmatism Plano -0.50 X 145 is an example of: A. mixed astigmatism B. compound myopic astigmatism C. simple myopic astigmatism D. simple hyperopic astigmatism (Ans: - C. simple myopic astigmatism