thats the layout of the type of eye prosthetic i have, so no ball bearings will do i'm afraid.
The main 'ball' is coral. The eye muscles are attached to it, and the body then grows into the spaces of the coral, eventually swapping out the structure of the coral for bone, i believe. It _is_ a living part of me with blood vessels, nerves and the whole shebang.
The cosmetic prosthetic is just a thin piece which goes over the inner ball. It can either be molded via injection techniques to the exact layout of the inner ball, or it can be handcrafted for comfort.
Damn, everything always has to be expensive...
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