Fig. 14
From: Ocular ultrasonography focused on the posterior eye segment: what radiologists should know
Posterior vitreous detachment (PVD) in two patients. a, b Illustration and US image correlation showing a PVD. Note the undulating appearance of the posterior vitreous that is better identified on dynamic scanning (arrowheads). c Axial US in a 67-year-old man with blurred vision. Note the fine echoes in the retrohyaloid space (asterisk), consistent with retrohyaloid haemorrhage