Job Description:

• 1) Operates jeweler's lathe to cut inside or outside curvature in contact lens blanks: Reads prescription to determine lens thickness and dioptric power and converts specified dioptric power to radius dimensions, using conversion table.

• 2) Inserts plastic blank in holding chuck of lathe.

• 3) Adjusts cutting tool mechanism for specified radius of inside or outside curvature and depth of cut.

• 4) Starts lathe and turns crank to advance cutting tool.

• 5) Observes gauge and readjusts lathe to prevent excessive cutting.

• 6) Pulls control arm to move cutting tool across face of lens.

• 7) Removes lens from chuck and examines lens for smoothness of cut.

• 8) Measures lens to verify compliance with specifications, using thickness gauge and calipers.

• 9) Tapes finished lens to work order and places lens in routing box.