Laboratory Manual For Human Anatomy & Physiology
4th Edition
ISBN: 9781260159363
Author: Martin, Terry R., Prentice-craver, Cynthia
Publisher: McGraw-Hill Publishing Co.
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Textbook Question
Chapter 36, Problem 2PL
Visual acuity is measured using a
a. metric ruler.
b. pen flashlight.
c. Snellen eye chart.
d. astigmatism chart.
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A patient’s visual acuity is assessed as 20/40 in both eyesusing the Snellen chart. The nurse interprets this finding as:a. The patient can see twice as well as normal.b. The patient has double vision.c. The patient has less than normal vision.d. The patient has normal vision.
When an ophthalmologist surgically corrects a patient’s vision through LASIK or PRK, the doctor is making adjustments to the patient’s a. cornea. b. lens. c. retina. d. iris.
When reading, a person with astigmatism sees some lines in sharp focus while others appear blurred. Astigmatism is caused by the
a. inability of the iris to contract or dilate
b. lens becoming cloudy and rigid
c. number of cones on some parts of the retina being deficient
d. curvature of the cornea or lens not being symmetrical
Chapter 36 Solutions
Laboratory Manual For Human Anatomy & Physiology
Ch. 36 - As a person ages, the elasticity of the lens a....Ch. 36 - Visual acuity is measured using a a. metric ruler....Ch. 36 - Color blindness is a characteristic in of males a....Ch. 36 - The blind spot is located at the of the eye. a....Ch. 36 - Astigmatism results from a defect in the a....Ch. 36 - Only males can inherit the color blindness...Ch. 36 - Nearsightedness is also called myopia. a. True...Ch. 36 - A convex lens can be used to correct hyperopia. a....Ch. 36 - Explain why small objects e not lost from our...Ch. 36 - Complete the following a. What is meant by 20/70...
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