An optical laboratory technician works in a laboratory setting, producing eyewear such as glasses and contacts based on the prescription from an optometrist. In this career, your duties start with selecting the appropriate lens based on the prescription standards set out by the optician. You then cut, grind, and polish them so that they meet the prescription criteria and fit within the frames. Your responsibilities could also include adding coating or surfacing to the products and polishing the lens to remove any trace of imperfection.