Nerve fiber layer
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| Nerve fiber layer | |
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| Section of retina. (Stratum opticum labeled at right, second from the top.) | |
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| Plan of retinal neurons. (Stratum opticum labeled at left, second from the top.) | |
| Gray's | subject #225 1015 |
| Dorlands/Elsevier | l_05/12480766 |
The nerve fiber layer (or layer of nerve fibers or stratum opticum) is formed by the expansion of the fibers of the optic nerve; it is thickest near the porus opticus, gradually diminishing toward the ora serrata.
As the nerve fibers pass through the lamina cribrosa sclerae they lose their medullary sheaths and are continued onward through the choroid and retina as simple axis-cylinders.
When they reach the internal surface of the retina they radiate from their point of entrance over this surface grouped in bundles, and in many places arranged in plexuses.
Most of the fibers are centripetal, and are the direct continuations of the axis-cylinder processes of the cells of the ganglionic layer, but a few of them are centrifugal and ramify in the inner plexiform and inner nuclear layers, where they end in enlarged extremities.
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This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
Photoreceptor cells (Cone cell, Rod cell) → (Horizontal cell) → Bipolar cell → (Amacrine cell) → Ganglion cell
Giant retinal ganglion cells | Photosensitive ganglion cell
Inner limiting membrane - Nerve fiber layer - Ganglion cell layer - Inner plexiform layer - Inner nuclear layer - Outer plexiform layer - Outer nuclear layer - External limiting membrane - Layer of rods and cones - Retinal pigment epithelium
