Other studies support the conjecture that other measures besides visual acuity are associated with an individuals perception of visual performance [ 1, 24, 25].
WHO defines quality of life (QoL) as an "individuals' perception of their position in life in the context of the culture and value systems in which they live and in relation to their goals, expectations, standards and concerns" [ 4].
Factors such as pain, fatigue and sleep difficulties may also contribute to other aspects of mental health such as anxiety and depression; conversely, an individuals' perception of pain and fatigue are closely tied to their mental health [ 38– 40].
It is an individuals' perception of their position in life within the context of the culture and value systems in relation to their goals, expectations, standards, and concerns [ 2].
The affective symptoms of depression can theoretically distort [ 15] or blind [ 12] an individuals' perception of the future, but as Meynen remarks, the ability to appreciate future possibilities needs, further specification and empirical testing [ 13].
Because a person's individual perception of risk can be influenced by a number of biases, such as personal experience and information from the media, public health practitioners need instruments to accurately assess risk perception of pediatric RWI.
While the obsession with lightness which seems to appear in every culture (every one that sends women to international beauty pageants, anyway) may become merely a matter of individual perception, the perceptions would still exist.
