‘Prosthetic device’ means a replacement, corrective or supportive device, including any repair and replacement parts therefor, worn on or in the body:

1.  To replace artificially a missing portion of the body;

2.  To prevent or correct a physical deformity or malfunction; or

3.  To support a weak or deformed portion of the body, except that the term does not include any corrective eyeglasses, contact lenses or hearing aids.