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The crystalline lens is part of the refracting system of the eye and in addition to the cornea helps focus light onto the retina.
The lens can also alter shape (accommodation) when it is stretched by very small muscles within the eye, this allows us to alter the focus of the eye (i.e. look from the TV to a book)
Around mid 40's the ability to change the shape of the lens reduces and eventually is non existent. This happens to everyone and is called presbyopia, and why reading glasses and varifocals are required.
The lens is also where cataracts form. Clouding of the lens causes reduction in visual acuity. This can be rectified with a simple operation.
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∙ 15y ago
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What is a crystalline lens?
A crystalline lens is the lens in the human eye.
What structure changes its shape to focus light at the back of the eye?
The lens of the eye also called the crystalline lens.
What part of the eye is similar to a contact lenses?
The part of the eye that is similar to a contact lens is the crystalline lens.
Clouding of what structure causes cataracts?
The crystalline lens becomes cloudy and opaque, resulting in a cataract.
Aqueous humor fills the space between the cornea and the?
crystalline lens
What modification of the choroid that controls the shape crystalline lens?
ciliary bodyciliary body
What is the use of lens in your eye?
The crystalline lens in human eye is indispensable to perform refraction so as to enable us to see objects clearly.
What is the diopter power of the crystalline lens?
I don't know. Is less than 50 diopter
What part of the human body is effected by cataract?
The eye.In the crystalline lens of the eye, specifically.
What are zonules of zinn?
a ring of fibrous strands connecting the ciliary body with the crystalline lens of the eye.
What has the author John Goldfreed Bellows written?
John Goldfreed Bellows has written: 'Cataract and anomalies of the lens' -- subject(s): Abnormalities, Cataract, Crystalline lens
The human eye contains a lens what is it called?
The lens is also known as the aquula (Latin, a little stream, dim. of aqua, water) or crystalline lens. http://en.wikipedia.org/wiki/Lens_%28vision%29
