|Dec20-09, 04:08 PM||#1|
Contact Lens: How to focus light 1mm away
So, I've been wondering. Anyone know what shape/prescription a contact lens would have to be in order for an eye to be able to focus on something 1mm away (assuming the distance of focus in the eye is around 4 cm)? Does it have to do with focal length of the lens?
|Dec20-09, 05:24 PM||#2|
That's tricky to answer since the eye can accomodate- change its own focal length. There are several optical models ('standard eye')- Liou and Brennan's is one:
So it's possible to figure it out.
|Dec20-09, 06:53 PM||#3|
Great link. Thanks a lot.
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