A professional who blocks contact lens blanks and cuts lenses to specified diameter, using jeweler's lathe and handtools. Responsibilities include:

• Immerses laps i in molten wax and embeds lens in wax or presses two-faced adhesive tape into depression of lap, using rounded tool, and affixes lens to tape.
• Trims excess tape, using knife.
• Positions lens and lap assembly in blocking device.
• Presses plunger to center and fasten lens to blocking device.
• Mounts blocked lens in chuck of jeweler's lathe.
• Turns crank and observes gauge to set cutting tool for specified diameter.
• Starts lathe and turns handle to feed cutting tool into lens.
• Removes cut lens from lathe and smooths burrs, using emery cloth.
• Places laps in container of solvent to remove tape or wax residue before reuse.