A professional who operates grinder to edge and bevel precision ophthalmic optical lenses. Responsibilities include:

• Reads work order or blueprint to determine edge specifications.
• Selects lens holding tool of specified size and mounts tool in truing machine.
• Starts machine and turns handwheel to move cutting tool into lens holding tool to true holding tool.
• Applies heated pitch or other adhesive to lens holding tool and affixes lens on tool.
• Passes beam of light through lens and repositions lens on holding tool until beam remains stationary to center lens on tool or centers lens, using collimator.
• Secures holding tool and lens assembly in fixture of edge grinder.
• Adjusts grinder for variables, such as speed, rate of feed, and depth and angle of cut.
• Starts machine and turns handwheel to bring grinding wheel in contact with lens.
• Observes machine operation; stops machine to measure lens edge, using precision measuring instruments, such as micrometers and calipers; and adjusts machine to grind and bevel edge to specifications.
• May hold lens against grinding wheel to bevel edges to specified angle.
• May set up machines for other workers and train workers to operate machines.