Lens
The crystalline lens sits just behind the iris and takes the incoming light rays from the cornea and further bends them to focus the image on the retina.
The lens can change its shape and power to make sure that the image focused onto the retina is as clear as possible.

What can go wrong?
The most common crystalline lens problems are the result of the normal aging processes
and tissue changes. Presbyopia (old eye) is caused by the growth and hardening of the lens
resulting in the need for reading glasses or bifocals for individuals over the age of 40.
As the lens continues to age, it can become cloudy resulting in poor optical quality and
a condition called “cataracts”. Cataract surgery to remove this cloudy lens
material can easily bring your vision back to normal.
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