Q1) Suppose you are going to visit your friend and you realize that when she is wearing her glasses, she has to put her book 36cm from her face to be able to read. Then, you tell her that is she is probably due for new glasses. You see her current prescription is + 0.8D. a) Calculate the punctum proximum of your friend's eyes in cm. b) So that she can read comfortably, you prescribe new glasses to her. Calculate the vergence of these glasses in diopter.

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ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
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Chapter1: Units, Trigonometry. And Vectors
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Q1) Suppose you are going to visit your friend and you realize that when she is wearing her glasses, she
has to put her book 36cm from her face to be able to read.
Then, you tell her that is she is probably due for new glasses. You see her current prescription is + 0.8D.
a) Calculate the punctum proximum of your friend's eyes in cm.
b) So that she can read comfortably, you prescribe new glasses to her. Calculate the
these glasses in diopter.
vergence of
Q2) Your husband Tom is able to see clearly objects lying 13cm to 171cm from his eyes. You want to
help him prescribe glasses.
a) Calculate the vergence of the glasses that correct his problem in diopters
b) What does he suffer from? Myopia, presbyopia or hyperopia?
c) When
your
friend starts to wear his glasses, what will his new punctum proximum be?
Transcribed Image Text:Q1) Suppose you are going to visit your friend and you realize that when she is wearing her glasses, she has to put her book 36cm from her face to be able to read. Then, you tell her that is she is probably due for new glasses. You see her current prescription is + 0.8D. a) Calculate the punctum proximum of your friend's eyes in cm. b) So that she can read comfortably, you prescribe new glasses to her. Calculate the these glasses in diopter. vergence of Q2) Your husband Tom is able to see clearly objects lying 13cm to 171cm from his eyes. You want to help him prescribe glasses. a) Calculate the vergence of the glasses that correct his problem in diopters b) What does he suffer from? Myopia, presbyopia or hyperopia? c) When your friend starts to wear his glasses, what will his new punctum proximum be?
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