Dynamic Three-Dimensional Ultrasound of the Eyes

The minimally compressed imaging technique can also be used for visualisation of the blinking eyes. The revelation of the dynamic muscular structures as shown below will improve surgical planning so that, after plastic and cosmetic procedures, the eye can open and close as normally as possible.
 
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Normal 3D & 4D View
Why does this upper eyelid have double folds?
blink to open
2D sagittal views reformatted from a 4D data set, showing the thin dark muscular layer in the upper eyelid bifurcates when the eye opens. See the eye blinking [AVI 129KB].
Look into & out through your pupils
eye, look-in
eye, look-out
This 3D image shows how your lens and iris (& pupil) may look like when viewed between your open eye lids [AVI 286KB]. This 3D image shows how your lens and iris (& pupil) may look like when viewed from your retina [AVI 407KB].
As ultrasound can be performed without any lighting, it is possible to measure the pupillary diameter in the total darkness. But so far, we do not know if this has any clinical significance.
* 3D/4D data sets through this page were acquired with TomTec's 4D Echo Scan; 3D/4D images & movies were reconstructed with either 4D Echo Scan or MGI's 3D Imaging Workstation