Read the passage. Nearsightedness and Farsightedness Nearsighted people experience blurred vision while looking at distant objects, such as street signs viewed from inside a car. Conversely, farsighted people experience blurred vision while looking at nearby objects, such as words on a page. The causes of these twc conditions differ as well. Nearsightedness, or myopia, occurs either when a person's eye is too long from back to front or when thẻ cornea (the clear layer at the front of the eye" is too curved. On the other hand, farsightedness, or hyperopia, results when the eye is too short or when the cornea is not curved enough. Fortunately, corrective lenses can restore normal vision in both cases. As you might expect, these lenses are of opposing types: nearsightedness is improved with a lens that is thinner in the middle and thicker the edges, while farsightedness is compensated for with a lens that is thicker in the middle and thinner at the edges. What is the main idea of the passage? In nearsightedness, the eye may be too long from front to back, while in farsightedness, the opposite may be true. Nearsightedness and farsightedness produce contrasting vision problems, have opposite causes, and require different types of lenses.
Read the passage. Nearsightedness and Farsightedness Nearsighted people experience blurred vision while looking at distant objects, such as street signs viewed from inside a car. Conversely, farsighted people experience blurred vision while looking at nearby objects, such as words on a page. The causes of these twc conditions differ as well. Nearsightedness, or myopia, occurs either when a person's eye is too long from back to front or when thẻ cornea (the clear layer at the front of the eye" is too curved. On the other hand, farsightedness, or hyperopia, results when the eye is too short or when the cornea is not curved enough. Fortunately, corrective lenses can restore normal vision in both cases. As you might expect, these lenses are of opposing types: nearsightedness is improved with a lens that is thinner in the middle and thicker the edges, while farsightedness is compensated for with a lens that is thicker in the middle and thinner at the edges. What is the main idea of the passage? In nearsightedness, the eye may be too long from front to back, while in farsightedness, the opposite may be true. Nearsightedness and farsightedness produce contrasting vision problems, have opposite causes, and require different types of lenses.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Read the passage.
Nearsightedness and Farsightedness
Nearsighted people experience blurred vision while looking at distant objects, such as
street signs viewed from inside a car. Conversely, farsighted people experience blurred
vision while looking at nearby objects, such as words on a page. The causes of these two
conditions differ as well. Nearsightedness, or myopia, occurs either when a person's eye
is too long from back to front or when thể cornea (the clear layer at the front of the eye)
is too curved. On the other hand, farsightedness, or hyperopia, results when the eye is
too short or when the cornea is not curved enough. Fortunately, corrective lenses can
restore normal vision in both cases. As you might expect, these lenses are of opposing
types: nearsightedness is improved with a lens that is thinner in the middle and thicker at
the edges, while farsightedness is compensated for with a lens that is thicker in the
middle and thinner at the edges.
What is the main idea of the passage?
In nearsightedness, the eye may be too long from front to back, while in
farsightedness, the opposite may be true.
Nearsightedness and farsightedness produce contrasting vision problems,
have opposite causes, and require different types of lenses.
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