A professional who tends one or more bench machines that generate, grind, edge, or polish ophthalmic lenses and precision optical elements. Responsibilities include:

• Mounts blocked element in machine holding device.
• Verifies machine settings or adjusts machines for variables, such as speed, machining time, and flow rate of abrasive or coolant.
• Starts machine that automatically generates, grinds, polishes, or edges optical element.
• Removes element after specified machining time, rinses element in water, and measures to verify specified dimensions of element, using micrometer, caliper, dial gauge, and shadowgraph.
• May deblock and clean element in degreasing tank.
• May be designated according to fabricating process or type lens fabricated as contact-lens-curve grinder; contact-lens-edge buffer; fusion-juncture grinder; machine lens-edge grinder; lens-generating-machine tender; multifocal-button countersink grinder.