An occupational therapist (OT) works with a client to help them achieve a fulfilled and satisfied state in life through the use of "purposeful activity or interventions designed to achieve functional outcomes that promote health, prevent injury or disability, and which develop, improve, sustain, or restore the highest possible level of independence."

OTs help people of all ages to improve their ability to perform tasks in their daily living and working environments. They work with individuals who have conditions that are mentally, physically, developmentally, socially, or emotionally disabling. They also help them to develop, recover, or maintain daily living and work skills.
OTs help patients not only to improve their basic motor functions and reasoning abilities, but also to compensate for permanent loss of function. They assist patients in performing activities of all types, ranging from using a computer to caring for daily needs, such as dressing, cooking, and eating. Physical exercises may be used to increase strength and dexterity, while other activities may be chosen to improve visual acuity and the ability to discern patterns.
They often use computer programs to help clients improve decision-making, abstract-reasoning, problem solving, and perceptual skills, as well as memory, sequencing, and coordination.

Adapted from Wikipedia, the free encyclopedia. Internet. Accessed on June 14, 2016.