A professional who sets up and operates machines to grind eyeglass lenses to prescription specifications and assembles lenses in frames. Responsibilities include:

• Reads lens and frame specifications from prescription.
• Selects lens blanks from stock.
• Sets up and operates machines, such as generator, polisher, edger, and hardener, to fabricate lenses to specifications.
• Mounts lenses in metal, plastic, or rimless frames.
• Inspects mounted lenses for conformance to specifications.
• Examines broken lenses to identify original lens prescription, using power determining and optical centering instruments.