The diagram shows the eye of a person with normal vision looking at an object that is very far away.
a) Determine the focal length of this persons eye.
b) Later in this person's life, the focal length will change to between 2.1 cm and 2.3 cm. Will this person suffer from myopia or hyperopia? Explain your answer.
c) Will this person require a convex or concave lens to correct this problem?
Center of curvature= 1/2 diameter
Focal length= 1/2center of curvature
The Attempt at a Solution
It doesn't make sense though, that focal length seems too small/odd. It says in the question that it changes to between 2.1 and 2.3, so my answer seems wayyyyy off...http://img23.imageshack.us/img23/9751/eyecopyw.jpg [Broken]
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