lamina cribrosa


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Related to lamina cribrosa: lamina cribrosa sclerae

lamina cribrosa

[′lam·ə·nə krə′brō·sə]
(anatomy)
The portion of the sclera which is perforated for the passage of the optic nerve.
The fascia covering the saphenous opening in the thigh.
The anterior or posterior perforated space of the brain.
The perforated plates of bone through which pass branches of the cochlear part of the vestibulocochlear nerve.
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References in periodicals archive ?
If the IOP is raised it increases the risk of venous thrombosis; it has been theorised that the increased pressure bows the lamina cribrosa posteriorly, inducing turbulence, consequent endothelial damage, and thrombosis.
2%) of 142 eyes, and included infiltration of iris in 10 eyes (7%), ciliary body invasion in 13 (9%), anterior chamber angle seeds in 13 (9%), choroidal infiltration in 57 (40%), prelaminar optic nerve invasion in 24 (17%), optic nerve lamina cribrosa invasion in 15 (11%), retrolaminar optic nerve extension in 24 (17%), involvement of optic nerve to line of transection in 11 (8%), infiltration of sclera in 13 (9%), and extrascleral extension in 9 (6%) eyes.
In the human eye, RGC axons pass through a structure called the lamina cribrosa, a complex three-dimensional lattice of connective tissue beams and supportive glial tissue.
Extent of growth (notes E and J) (1) Anterior extent of tumor (eg, peripheral retina, anterior chamber) (2) Posterior extent of tumor (eg, posterior to equator, to edge of optic disc, optic nerve anterior to lamina cribrosa, optic nerve posterior to lamina cribrosa, to cut edge of optic nerve) h.