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Stratum Opticum

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The Stratum Opticum (also known as the "Layer of Nerve-Fibres") is the second (2nd) of the layers forming the retina of the human eye that light reaches after entering the eye:
That is, after light from outside the body enters the eye through it's main structures of the cornea, aqueous humour, pupil, lens, etc..

The retina is composed of several layers which, together, form the "screen" in the eye onto which an image of the area viewed by the eye is formed, and information about that image is segmented into packets of information that are passed to the visual cortex of the brain via the optic nerve.

The stratum opticum is formed from the extension of the optic nerve (which extends from this second layer of the retina, through the other layers to the back of the retina, from where it leaves the eye at the fovea and continues, eventually, to the visual cortex brain).
The stratum opticum is thickest around the optic disc (also known as the optic papilla), and gradually becomes thinner towards the "ora serrata" - which is the edge of the retina closest to the front of the eye, at which the retina ends in the form of a jagged margin before the most posterior area to which the ciliary body is attached.

 

For more information about related subjects see:
*_ Structure & Components of the Eye,
*_ Components of the Central Nervous System,
*_ The Pathway of a Nerve Impulse,
*_ Structures and Functions of Neurones,
*_ Diseases and Disorders of the Nervous System,
*_ Text books about Ophthalmology.

 
Labelled diagram of the structure of the retina
Labelled Diagram of the Eye


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