They also arrange for hospital admission and laboratory services. Some assistants handle billing and bookkeeping. The size of the office determines how much time assistants spend on clerical duties. In larger offices, assistants spend only a little time on clerical work. Assistants are supervised by doctors, other health workers, or office managers.
Some medical assistants specialize.
For example, ophthalmic assistants have extra duties related to eye care. They may do basic eye tests and teach people how to use contact lenses. Medical Assistants is in the Health Services Career Cluster. Worker Characteristics Ability to coordinate the movement of eyes and hands or fingers Ability to talk to patients and gather information about them Ability to move the fingers quickly and accurately Ability to move the hands easily and skillfully Ability to use words well when speaking to others Desire to help people with their physical needs Willingness to perform a variety of tasks Medical assistants need to be able to put patients at ease. Medical assistants work inside in a clean, well-lighted environment.