Human Eye Optics - Answers Needed

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The discussion revolves around urgent assistance needed for a homework problem related to the optics of the human eye, specifically concerning focal length measurements. The poster questions the accuracy of provided numbers, particularly the focal length of approximately 17mm, and seeks clarification on whether this reflects a change in focal length from near to far vision. They express frustration over not receiving responses despite previous attempts to engage the forum. The poster has attempted calculations involving image and object distances but has not achieved the correct results. Immediate help is requested as the assignment is due soon.
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I reposted because I "bumped" this thread already with 2 replies and no one is answering.
 
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Someone help please

Someone help please.
 
Where did you get those numbers? The focal length of the eye is about 17mm - are you sure that isn't the change in focal length from near-far.
 
These numbers are just from my homework problem, and yes it is focal length (I wrote down the problem exactly).

I tried subtracting image distance from focal length and object distance from focal length but neither works.

Can someone please help? It's due today at 12:40.
 
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