In cases of uveitis the vitreous often shows cells. These accumulate in vitreous condensations and make the vitreous structure well visible. In this case the vitreous is detached posteriorly. Therefore no structure is visible posteriorly. The little cell clusters are attached to the condensed collagen fibers.
Ruprecht, Klaus, Prof. Dr. med., Universitäts-Augenklinik, Homburg/Saar, Germany