Suppose one such individual asks for your help. The patient complains that he can't see far enough to safely drive (his far point is 120 cm) and he can't read the font of his smart phone without holding it beyond arm's length (his near point is 81 cm)! Prescribe the bifocals that will correct the visual issues for your patient. 1)Calculate the power of the upper half of the bifocals. (Express your answer to three significant figures.) 2)Calculate the power of the lower half of the bifocals. (Express your answer to three significant figures.)

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
icon
Related questions
icon
Concept explainers
Question

One of the inevitable consequences of aging is a decrease in the flexibility of the lens. This leads to the farsighted condition called presbyopia (elder eye). Almost every aging human will experience it to some extent. However, for the myopic person, at some point, it is possible that far vision will be limited by a subpar far point and near vision will be hampered by an expanding near point. One solution is to wear bifocal lenses that are diverging in the upper half to correct the nearsightedness and converging in the lower half to correct the farsightedness.

Suppose one such individual asks for your help. The patient complains that he can't see far enough to safely drive (his far point is 120 cm) and he can't read the font of his smart phone without holding it beyond arm's length (his near point is 81 cm)! Prescribe the bifocals that will correct the visual issues for your patient.

1)Calculate the power of the upper half of the bifocals. (Express your answer to three significant figures.)

2)Calculate the power of the lower half of the bifocals. (Express your answer to three significant figures.)

1
One of the inevitable consequences of aging is a decrease in the flexibility of the lens. This leads to the farsighted
condition called presbyopia (elder eye). Almost every aging human will experience it to some extent. However, for the
myopic person, at some point, it is possible that far vision will be limited by a subpar far point and near vision will be
hampered by an expanding near point. One solution is to wear bifocal lenses that are diverging in the upper half to
correct the nearsightedness and converging in the lower half to correct the farsightedness.
Suppose one such individual asks for your help. The patient complains that he can't see far enough to safely drive (his far
point is 120 cm) and he can't read the font of his smart phone without holding it beyond arm's length (his near point is 81
cm)! Prescribe the bifocals that will correct the visual issues for your patient.
1) Calculate the power of the upper half of the bifocals. (Express your answer to three significant figures.)
diopters [ Submit
You currently have 0 submissions for this question. Only 10 submission are allowed.
You can make 10 more submissions for this question.
2) Calculate the power of the lower half of the bifocals. (Express your answer to three significant figures.)
diopters Submit
You currently have 0 submissions for this question. Only 10 submission are allowed.
You can make 10 more submissions for this question.
Transcribed Image Text:1 One of the inevitable consequences of aging is a decrease in the flexibility of the lens. This leads to the farsighted condition called presbyopia (elder eye). Almost every aging human will experience it to some extent. However, for the myopic person, at some point, it is possible that far vision will be limited by a subpar far point and near vision will be hampered by an expanding near point. One solution is to wear bifocal lenses that are diverging in the upper half to correct the nearsightedness and converging in the lower half to correct the farsightedness. Suppose one such individual asks for your help. The patient complains that he can't see far enough to safely drive (his far point is 120 cm) and he can't read the font of his smart phone without holding it beyond arm's length (his near point is 81 cm)! Prescribe the bifocals that will correct the visual issues for your patient. 1) Calculate the power of the upper half of the bifocals. (Express your answer to three significant figures.) diopters [ Submit You currently have 0 submissions for this question. Only 10 submission are allowed. You can make 10 more submissions for this question. 2) Calculate the power of the lower half of the bifocals. (Express your answer to three significant figures.) diopters Submit You currently have 0 submissions for this question. Only 10 submission are allowed. You can make 10 more submissions for this question.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 2 images

Blurred answer
Knowledge Booster
Lens
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
College Physics
College Physics
Physics
ISBN:
9781305952300
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning
University Physics (14th Edition)
University Physics (14th Edition)
Physics
ISBN:
9780133969290
Author:
Hugh D. Young, Roger A. Freedman
Publisher:
PEARSON
Introduction To Quantum Mechanics
Introduction To Quantum Mechanics
Physics
ISBN:
9781107189638
Author:
Griffiths, David J., Schroeter, Darrell F.
Publisher:
Cambridge University Press
Physics for Scientists and Engineers
Physics for Scientists and Engineers
Physics
ISBN:
9781337553278
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:
9780321820464
Author:
Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:
Addison-Wesley
College Physics: A Strategic Approach (4th Editio…
College Physics: A Strategic Approach (4th Editio…
Physics
ISBN:
9780134609034
Author:
Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:
PEARSON