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Old 24th September 2016 | 10:56
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Loose rivets
Psychophysiological entity
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Joined: Jun 2001
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From: Walton on the Naze Essex.
This gives a lot of information but I'm perplexed by the way round they describe the cilia forces.


Crystalens - Pros and Cons of Accommodating IOLs


Ah, just reread it. I've made that mistake before. Don't confuse the muscle (singular) with the cilary zonules. They are relaxed counter-intuitively.

The lens and ciliary muscle are connected by a 360-degree series of fibers (called ciliary zonules) that extend from the ciliary muscle to the thin lens capsule (or "bag") that encloses the lens. The ciliary muscle, ciliary zonules and lens capsule keep the lens suspended in its proper position inside the eye for clear vision.

In a normal eye (without presbyopia or cataracts), this dynamic process of accommodation adjusts the focusing power of the eye by changing the thickness of the eye's natural lens.
But:

When the ciliary muscle is relaxed, the lens flattens to enable clear distance vision. When the ciliary muscle contracts, the lens thickens, becoming more curved for added magnification for clear near vision.
One is still suspicious and is searching further about this.

Ah, Okay. All is explained.

http://www.yorku.ca/eye/ciliary.htm

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Grrrrrrr to Edit thingies.

Last edited by Loose rivets; 24th September 2016 at 11:26.
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