From TFA: Currently there is no practical alternative to compensate for the fixed focus lens system where a camera lens, for example, is moved along a linear axis until the image comes into focus.
So, they're not talking about how your eye zooms, which it obviously doesn't. They're talking about how the lens changes shape to focus while zooming, like your eye changes shape to focus. Of course, I aint no optician.
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Currently there is no practical alternative to compensate for the fixed focus lens system where a camera lens, for example, is moved along a linear axis until the image comes into focus.
So, they're not talking about how your eye zooms, which it obviously doesn't. They're talking about how the lens changes shape to focus while zooming, like your eye changes shape to focus. Of course, I aint no optician.
Oh no... you forgot the all important,
3. Profit!!!