Outer Nuclear Layer
The Outer Nuclear Layer is the seventh (7th) of the layers forming the retina of the human eye.
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 outer nuclear layer is similar to the inner nuclear layer in that both contain several sub-layers of oval-shaped components.
- The rod-granules are the most numerous the the
These are located at various different levels within the outer nuclear layer of the retina. Fine processes extend from two opposite sides of each rod-granule. The "outer-process" which extends towards the back of the retina is aligned with a single rod in Jacob's Membrane (layer 9) of the retina. The "inner-process" traverses towards the outer molecular layer (layer 6) of the retina where it terminates at a point of connection with the "outer-process" of a rod-bipolar.
- The cone-granules are located close the membrana
limitans externa, through which each one is located in alignment with
a single cone in Jacob's
Membrane (layer 9).
Each cone-granule contains a pear-shaped ("pyriform") nucleus that almost completely fills the cell and is connected, via a thick process that terminates in multiple thin fibrils, with the outer process of a cone-bipolar in the outer molecular layer (layer 6).
For more information about related subjects see:
- Structure of the human eye
- Structure of the human retina
- What is ophthalmology?
- List of disorders of the human eye
- List of ophthalmic procedures
- Textbooks about ophthalmology