Figure 4(d) shows the created binary mask in two sample B-scans contain posterior
hyaloid and bumps in detected upper boundary of ROI.
(1) no macular traction--presence of complete PVD (Weiss ring detected on ophthalmoscopy), or no PVD (no visible posterior
hyaloid line on FDOCT), and no ERM;
In particular, VMA without traction and localized PVD without posterior
hyaloid thickening do not cause visual symptoms.
In such cases, the anterior chamber is more unstable during cataract surgeries than it is in cases of anterior capsule rupture because the anterior
hyaloid membrane can rupture more easily during the more complicated operative procedure.
The inner surface is closely apposed to the posterior
hyaloid face, or vitreous cortex, facing the vitreous cavity.
* Moreover, triamcinolone particles were much more freely mobile in the fluid-filled posterior
hyaloid space compared to the vitreous gel body, further aiding removal of the posterior
hyaloid.
In some earlier studies, synchronous apoptosis was also shown during regression phase in the pupillary membrane of the rat eye and
hyaloid blood vessels [53-55].
The vitreous humor was stained with intravitreal triamcinolone and the posterior
hyaloid was separated.
Preretinal hemorrhages usually occur at the interface between the posterior
hyaloid and internal limiting membrane (ILM).
DRT[right arrow]Diffuse Retinal Thickness; CME[right arrow]Cystoid Macular Edema; SRD[right arrow]Serous Retinal Detachment; PHT[right arrow]Posterior
Hyaloid Traction; TRD[right arrow]Tractional Retinal Detachment
Subhyaloid haemorrhages are found between the inner limiting membrane and the posterior
hyaloid face.
The posterior
hyaloid membrane and the vitreous strand, which is possibly a remnant of the Cloquet's canal, are attached to the site with the pit [5-8].