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Occipital Lobe
Region in the back of the brain which processes visual information. Damage to this lobe can cause visual deficits.

Occupational Therapy
Occupational Therapy is the therapeutic use of self-care, work and play activities to increase independent function, enhance development and prevent disability; may include the adaptation of a task or the environment to achieve maximum independence and to enhance the quality of life. The term occupation, as used in occupational therapy, refers to any activity engaged in for evaluating, specifying and treating problems interfering with functional performance.

Orientation
Awareness of one's environment and/or situation, along with the ability to use this information appropriately in a functional setting.

Orthopedics
The branch of medicine devoted to the study and treatment of the skeletal system, its joints, muscles and associated structures.

Orthosis
Splint or brace designed to improve function or provide stability.

Outpatient
The patient residing outside the hospital but returning on a regular basis for one or more therapeutic services.