The Elderly Eye And Colour Theory

The elderly people often show signs of depression like loneliness and fear, for this reason it is important to use colours that create a sense of warmth and security. It is also thought that a variety in the colours in the immediate environment can boost interest in the world and keep cognitive function alive. Older people can be drawn to soft pastels but they may not have the vitality of hue needed to stimulate the mind and mood. Eyesight problems can also impair how the colour is seen and what is seen. http://www.resene.co.nz/homeown/use_colr/colours-for-living.htm  Potential Colours

  • Soft Pastels
  • Soft shades of reds and orange (energy levels)
  • Soft blues, lavender, mauves, violet (spiritual)

Screen Shot 2015-02-23 at 18.41.50 Points to keep in mind

  • The users eyesight might be impaired
  • Elderly persons may have difficulty distinguishing between colours
  • dementia have impaired contrast perception which makes it harder to see the edges of objects
  • The elderly need three times the amount of light to see, but are sensitive to glare
  • Colours should be used that provide a high contrast
  • Colours with short wavelengths such as blue are particularly difficult for older people to discriminate
  • pay attention to tonal contrast rather than colour contrast when designing for the elderly (The easiest way to see if something has good tonal contrast is to convert an image into black and white.)
  • choose colours with high light reflectance value, maximising the amount of light that enters the eye
  • ageing causes yellowing of the lens, so yellow is a highly visible colour – used for importance
  • A reduction in the perceived saturation or vividness of colours (i.e chroma). For example reds start to look like pinks
  • A reduced ability to discriminate blue colours
  • People with Alzheimer’s Disease lose the ability to see and judge depth correctly
  • Trouble with glare and shadows. (have a matte finish on final product)
  • multiple overlapping visual patterns can become a swirl of confusion
  • Visual “noise” makes it difficult for a dementia patient to organize their thinking and activities, thereby reducing their ability to function.
  • Some dementia users might be colour blind so colour is probably not appropriate as the sole differentiating feature between different elements – the product should vary in other design features as well
  • dementia users have impaired contrast perception which makes it harder to see the edges of objects
  • Shrinking peripheral vision, By mid-disease an Alzheimer’s patients has the equivalent of tunnel vision.

Screen Shot 2015-02-23 at 19.09.09link to photo above ^ http://www.enablingenvironments.com.au/AdaptaHome/Colour/ColourPerceptionandContrast.aspx http://www.ehow.co.uk/info_8551183_colors-elderly.html https://unifiedspace.wordpress.com/2011/04/28/colour-perception-and-ageing-eyes/ http://psychcentral.com/lib/improving-alzheimers-and-dementia-care-the-eyes-have-it/00013200 Most Likely Colour Palettes Reds – Yellows – Oranges – Violets

Colour contrast tutorial

http://www.ctrlpaint.com/videos/color-contrast

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