An optical technician, also known as an ophthalmic laboratory technician, fills prescriptions for eyeglass lenses and contact lenses. As an optical technician, you may work in a medical equipment laboratory or directly in an optometrist’s office. One of your job duties is utilizing manufacturing machinery, such as grinders and lensometers, to ensure each lens is curved to the correct prescription for individual patients. Optical technicians are different from opticians, but some offices use the terms interchangeably. A technician usually works closely with an optometrist, or eye doctor, to ensure that each set of lenses is created correctly. Other common responsibilities include fitting glasses frames to suit the patient’s face, checking the correct prescription is sent to the lab, and drafting records about each order that is filled. Some employers require optical technicians to perform administrative duties, such as updating patient records and verifying insurance policies.