The Lens

The lens, like the cornea, is transparent. It is avascular and depends on the aqueous for nourishment. It has a thick elastic capsule, which prevents molecules (e.g., proteins) moving into or out of it.

The lens continues to grow throughout life,new lens fibres being produced from the outside and moving inwards towards the nucleus with age.

The lens is comprised of 65% water and 35% protein. The water content of the lens decreases with age and the lens becomes less pliable.

The lens is suspended from the ciliary body by the zonule,which arises from the ciliary body and inserts into the lens capsule near the equator.

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