CHAPTER ONE A - (SEEING) VISION (000-009)
This chapter reflects the consequences of impairments of vision at the level of activity of the individual. In vision the all or none phenomena are full sight and blindness. The major part of visually impaired have different degrees of low vision. Therefore the classification requires qualifiers which indicate the manner of accomplishment of the activity.
Interference in personal activities by visual impairment leads to use of compensatory techniques that are either those typical to blind persons or those typical to persons with low vision. A person may use different techniques in different tasks. For example:
The usefulness of vision needs to be assessed in at least four important areas of daily functioning: vision for
In each of these four main functional areas, where loss of vision changes the function, a person may use vision like a sighted person, like a person with low vision or may function like a blind person.
If in a certain culture there is an additional important function not mentioned above, this particular function should be considered separately. The limitation in functioning can be sensory or motor or a combination of sensory and motor impairments.
The activities coded in this chapter represent a manifestation or impact of visual impairments in activities of day-to-day life. The accomplishment of activities is coded in its own right without reference to the nature of the underlying impairment. The decision of the type of technique used is based on the general use of different techniques by the visually impaired persons. The degree of disability in each of the four main areas is assessed separately when the person is preferably using appropriate techniques. If the person has not learned appropriate techniques, specific notice needs to be made on that inappropriate/ineffective techniques were used.