ora serrata


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ora serrata 

The serrated anterior boundary of the retina located some 8 mm from the limbus. At the ora serrata, the retina is firmly adherent to the choroid, which is the reason why a retinal detachment ends here. See ciliary body; retinal dialysis; stria.
References in periodicals archive ?
In part 1 of this series (Optometry Today, April 4, 2015, p52-56) that the peripheral retina is the area extending from the equator anteriorly to the ora serrata.
Along a continuum with degenerative retinoschisis, cystoid degeneration refers to clusters of small intraretinal cysts just posterior to the ora serrata.
The H-R Wide Field's deep field of view shows details as far out as the ora serrata and most importantly, is distortion free across the entire viewing area.
His first three collections of poetry are Ora serrata retinae (1980), Natura and venatura (1987), and Esercizi di tiptologia (1992), reprinted with new poems in Poesie (1981-1992) e altre poesie (1996).
The peripheral retina thins gradually as it approaches the ora serrata to about 0.
On indirect examination, vortex veins and ampullae serve as useful landmarks to demarcate the equator and the start of the far peripheral retina, which then extends anteriorly to the ora serrata, which appears as a greyish black textured band.
Also known as cobblestone degeneration, this condition is present in about 25% of the population and appears as well defined yellow white patches between the equator and the ora serrata.
Microcystoid degeneration consists of small vesicles set in an area of greyish white retina near the ora serrata.
The ora serrata and pars plana are referred to as the extreme periphery.
In contrast to the rhegmatogenous retinal detachment, which often has a convex, even bullous surface, the typical tractional retinal detachment has a more concave surface and is likely to be more localized, often not extending to the ora serrata.