Job Description:

• 1) Locates and marks centers, axes, and terminal points on ophthalmic lens blanks, draws reference lines, and writes specifications to guide workers who surface or finish lenses: Reads work order to ascertain lens specifications.

• 2) Examines lens blank to ensure freedom from defects and to verify color and size specifications.

• 3) Positions lens blank to be surfaced on protractor and marks center, direction of cylinder axis, and position of reading lens segment.

• 4) Mounts lens blank to be finished in optical centering and power determining instrument and adjusts dials to align and focus target.

• 5) Compares dial readings with work order to ensure lens blank has been surfaced to meet power and axis specifications.

• 6) Rejects defective lenses.

• 7) Depresses marking device on instrument to mark optical center and horizontal axis of lens blank.

• 8) Writes specifications on lens blank to guide lens fabricating workers.

• 9) May be designated according to department worked in as Bench-Lay-Out Technician; Surface-Lay-Out Technician.