Explanation The differences between normal, nearsighted, and farsighted eyes are as follows: Normal eyes Nearsighted eyes Farsighted eyes Normal eyes focus at the cornea that has rounded contour bends light rays. If eyeball of a person is too long and too rounded it leads to cause nearsighted. If the eyeball is too short or the cornea is too flat, people will become farsighted. Light comes directly on the retina rather than in front or behind it. Means light comes from far objects would focus in front of the retina, thus, people will not see them clearly. Means light arrived from the nearby objects will focus behind the retina...

12th Edition

ISBN: 9780134813448

Author: Audesirk, Teresa, Gerald, Byers, Bruce E.

Publisher: Pearson,

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Question

Chapter 40.6, Problem 3CYL

Summary Introduction

To describe:

The differences between normal, nearsighted, and farsighted eyes and also explain the way through which defective focusing can be corrected by artificial lenses.

Introduction:

Eyes help to see and view different objects by forming the image on the retina, a part of eye serves as a screen for the purpose of image formation.

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Chapter 40.6, Problem 2CYL

Chapter 40.7, Problem 1CYL

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Chapter 40 Solutions

Biology

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Solution Summary: The author explains the differences between normal, nearsighted, and farsighted eyes and how defective focusing can be corrected by artificial lenses.

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