Page 74 - Miracle in the Eye

a

c
b

(Figure 2.8). In the diagrams above,
a) When the eyes focus in on point P, it becomes a single image. As a result,
point Po is outside the focus and becomes doubled.
b) When we focus on point F, we experience double vision at point P, which is
between our eyes and the object we look at.
c) When we focus on point F, we experience double vision at the more distant
point P.
As you can see, there is flawless geometrical harmony between the two eyes.
Evolution cannot claim to be behind either the eyes' structure or the mathe-
matical communication between the two.

By means of a simple experiment, you can see the difference between
the two images. Look at the branches of a tree, first with both your eyes
open. After a few moments, shut one eye and keep staring at the branches. A
minute later, uncover your eye, and you'll notice that the branches appear
"deeper" than before.

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