Once the pre lens mold assembly is filled and closed, while applying a holding pressure to stably close the mold assembly and maintain the shape of the pre lens cavity, the first optical material in the mold assembly is polymerized or crosslinked to form {HEAD ~ a pre lens} having {TAIL ~ the contour} of the pre lens mold cavity 
Once the pre lens mold assembly is filled and closed , while applying a holding pressure to stably close the mold assembly and maintain the shape of the pre lens cavity , the first optical material in the mold assembly is polymerized or crosslinked to form { HEAD ~ a pre lens } having { TAIL ~ the contour } of the pre lens mold cavity
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH