An optical assistant is a vision care customer’s first point of contact, as you work in the retail or sales departments or optometrist’s offices. In this career, you are responsible for greeting patients and helping them select the right eyewear as well as repairing and making adjustments to the eyewear. Assistants perform duties such as fitting eyeglasses or contacts under supervision, measuring an eye or bridge of the nose, scheduling appointments, gathering important patient information, and maintaining medical files. Customer service is an important part of the job.