[Configuration of the tractus vitreales in rhegmatogenous posterior detachment of the vitreous body].

Subhyaloid prolapse of the vitreous gel in rhegmatogenous posterior detachment of the vitreous body invariably results in a change in the position of the funnel-shaped vitreal membranules : The membranules are not directed toward the optic disk as usual, but pass the prefoveal hole of the detached posterior hyaloid membrane and end within the subhyaloidally prolapsed vitreous gel. In addition to this typical configuration of the vitreal membranules in rhegmatogenous posterior detachment of the vitreous body, there exists a second, rare form of subhyaloid prolapse of vitreous gel with bump-like deformation of the vitreal membranules : The last ones balloon through the prefoveal hole into the retrovitreal space but typically end intravitreally in front of the optic disk.