hum occ 21

Visual attention:

fixing the gaze for as long as is required and shifting the gaze when needed.

Visual scanning:

shifting attention from one visual target to another in smooth succession

Visual scanning: Focused or selective visual attention:

enables person to discriminate visual details accurately (recognize person and identify objects) 

Visual scanning: Ambient or peripheral visual attention:

allows people to use peripheral vision to detect and locate moving items in the environment 

Visual field deficit

causes vision loss, impairing the ability to gather visual information in the field by not moving he eyes far enough to see the visual information.

Astigmatism:

variations in curvature of the cornea

Anesthesia:

complete loss of sensation

Paresthesia:

abnormal sensation, tingling

Hypoesthesia:

decreased sensation

Hyperesthesia

increased sensitivity

Analgesia

complete loss of pain sensation – analgesics (aspirin)

Hypoanalgesia

diminished pain sensation

Presbyopia:

far-sightedness associated with aging

OTP's teach clients to adapt the environment and/or activity to increase function with the use of

-contrast

-illumination

-background pattern

-size

-spacing

Compensatory Treatment -Guidelines include

1. avoid/limit exposure of involved body part to hot, cold and sharp objects

2. distribute forces evenly when using tools or objects by enlarging the handle

3. take regular rest breaks

4. use vision to guide movement and observe positioning of body parts

5. check skin for signs of stress (redness, edema, warmth) from excessive force or repetitive pressure and rest the area if these signs appear

6. perform skin care as recommended by physician to help keep skin soft/pliant

- Peripheral nerve injury (PNI) sensory change

may affect different parts of the nerve (cell body, myelin sheath, axons, or neuromuscular junction)

special sensory systems:

Visual (eyes) Auditory (ears) Olfactory (nose) Gustatory (mouth) Vestibular (balance)