vitreous base

vitreous base 

A dense, broad band (2 mm wide) of vitreous attachment to the peripheral retina near the ora serrata. Collagen vitreous fibrils blend anteriorly with the basal lamina of the non-pigmented epithelium of the pars plana of the ciliary body and posteriorly with the internal limiting membrane of the retina.
References in periodicals archive ?
Retinal tufts are internal projections of retinal tissue located at the area of the vitreous base.
Similar white material was present anterior to the vitreous base and extended circumferentially for 360[degrees] (Figure 3, A).
5) Thereisan inconspicuous, peripheral focus of intraretinal retinoblastoma in anterior diffuse retinoblastoma, which results in shedding of tumor cells into the aqueous humor between the ciliary epithelium and vitreous base, with the aqueous humor carrying the tumor into the anterior chamber.
Fundoscopic examination revealed subretinal hemorrhage, predominantly at the macular and posterior pole, and a large pool of blood between the retina and the vitreous base (Lancet 2005;365:330).
ERMs are often accompanied by retinal folds and are distinguished from the posterior vitreous base by the formation of a thicker reflective band.
One month later, a letter from the HES confirmed that the patient had a partial PVD with a very strongly attached and posteriorly located vitreous base, giving the appearance of vitreous veils, but that these were areas of strong vitreo-retinal attachment to the vitreous base and located more posteriorly than normal.
This separation process typically proceeds quickly from posterior to anterior, the vitreous ultimately remaining attached only at the vitreous base, where the vitreous is inseparable from the underlying retina.
Traction at the vitreous base is transmitted to the adjacent peripheral retina.
Ideally, examination of a patient with an acute PVD requires examination of the anterior retina, as it is here that the vitreous base and strongest attachment to the retina occurs.
Ten months later the patient went on to develop CMO, probably due to the broken capsule and traction at the vitreous base.