A professional who tends heating equipment and hydraulic casting press that casts plastic contact lenses. Responsibilities include:

• Lays separate top and bottom sections of previously set up mold on heated metal block for specified time.
• Fills lens cavities in heated mold with plastic powder.
• Aligns guide pins and holes to join top and bottom sections of mold.
• Places filled mold on bed of press, sets timer, and starts press to lower ram until dial indicates mold sections are under specified pressure.
• Removes mold from press.
• Inspects first run of lenses to verify accuracy of lens power, using power determining and optical centering instrument.
• Reports defects in new molds.