3D Reconstruction Of The Chromatic Digital Face Model Representing The Eye Open And Its Application In Emulational Orbital Prostheses

The orbital defect caused by surgical removal of tumor tissues or trauma is a common type of facial defects and account for about 16% of the total facial prosthetic cases. Individuals afflicted suffered not only from the deficit or loss of physiological function, but also from severe adverse psychological consequence. In some worst cases, patients even lose their desire to live. Surgical reconstruction is usually unsatisfying due to the special anatomical and histological structure around the orbital region. Therefore, prostheses are usually needed to restore normal facial appearance in most cases. In the 1990's, new techniques such as reverse engineering, CAD/CAM and rapid prototyping were introduced into the field of prosthesis design and manufacture and dramatically improved the production efficiency and emulational effects of the prostheses. Consequently, they offer new opportunity for future facial prosthetics and are rapidly becoming the major development trend in the prosthetic field. For the 3-D design of a emulational unilateral orbital prosthesis, the most valuable information is a face digital...