Ultrasonic Doppler studies of the vitreous

Simultaneous 'real-time' B-mode and doppler ultrasound techniques were used to study movements of the detached vitreous gel which occurred during duction movements of the eye. The velocity of sound scatterers within the vitreous gel were measured and it was possible to differentiate quantitatively gels which were 'stiff' from those which were 'sloppy'. Information obtained using this technique may throw light on the pathogenesis of rhegmatogenous retinal detachment and assist in the quantitative assessment of retinal mobility in eyes with vitreoretinopathies.