Colour blind

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'''&nbsp;Colour Blind''' is a type of eye disease, which people feel&nbsp;challenging to recognize and identify between certain colors, for example, red and green (Red-green color blindness) or blue and yellow (Blue-yellow color blindness)<ref>colour blindness</ref>.  
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Colour Blind is a type of [[eye|eye]] disease, which people feel challenging to recognise and identify between certain colours, for example, red and green ([[Red-green colour blindness|Red-green color blindness]]) or blue and yellow ([[Blue-yellow colour blindness|Blue-yellow color blindness]])<ref>Colour vision deficiency (colour blindness) [Internet]. nhs.uk. 2016 [cited 4 December 2018]. Available from: https://www.nhs.uk/conditions/colour-vision-deficiency/</ref>.  
  
The most <u>common</u> colour blind is <u>Red-green colourblind</u>.It's a common problem that affects around 1 in 12 men and 1 in 200 women. In rare cases, some people have trouble with blues, greens and yellows instead. This is known as "blue-yellow" colour vision deficiency.(NHS,2016)  
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The most common colour blind is Red-green colourblind. It's a common problem that affects around 1 in 12 men and 1 in 200 women. In rare cases, some people have trouble with blues, greens and yellows instead. This is known as "blue-yellow" colour vision deficiency<ref>Colour vision deficiency (colour blindness) [Internet]. nhs.uk. 2016 [cited 4 December 2018]. Available from: https://www.nhs.uk/conditions/colour-vision-deficiency/</ref>.
  
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=== Symptoms  ===
  
'''Symptoms:'''
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Find it difficult to tell the difference between reds, oranges, yellows, browns, and greens. Observe these colours duller than they would appear to someone with normal vision.
  
Find it difficult to tell the difference between reds, oranges, yellows, browns, and greens.<br>Observe these colours duller than they would appear to someone with normal vision.<br>
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=== Tests for colour blindness  ===
  
'''Tests for colour blindness''' There are two of the major tests used to diagnose colour blindness are:<br>1. [https://www.colour-blindness.com/colour-blindness-tests/ishihara-colour-test-plates/ The Ishihara test<ref>The Ishihara test</ref>] – where you're asked to identify numbers contained within images made up of different coloured dots<br>2. [https://www.colour-blindness.com/colour-blindness-tests/colour-arrangement-test/ Colour arrangemen<ref>Colour arrangement</ref>t] – where you're asked to arrange coloured objects in order of their different shades<br>
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There are two of the major tests used to diagnose colour blindness are:  
  
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#The [[Ishihara test|Ishihara test]]<ref>Ishihara Color Test [Internet]. Color Blindness. 2016 [cited 4 December 2018]. Available from: https://www.colour-blindness.com/colour-blindness-tests/ishihara-colour-test-plates/</ref>. – where you're asked to identify numbers contained within images made up of different coloured dots
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#Colour arrangement<ref>Color Arrangement Test [Internet]. Color Blindness. 2016 [cited 4 December 2018]. Available from: https://www.colour-blindness.com/colour-blindness-tests/colour-arrangement-test/</ref>. – where you're asked to arrange coloured objects in order of their different shades
  
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=== References<br> ===
  
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'''References:'''
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1.&nbsp;<references />Colour vision deficiency (colour blindness) [Internet]. nhs.uk. 2016 [cited 4 December 2018]. Available from: https://www.nhs.uk/conditions/colour-vision-deficiency/
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2.<references />&nbsp;Bailey G. Color Blindness Explained [Internet]. All About Vision. 2018 [cited 4 December 2018]. Available from: https://www.allaboutvision.com/conditions/colordeficiency.htm
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3.<references />&nbsp;Ishihara Color Test [Internet]. Color Blindness. 2016 [cited 4 December 2018]. Available from: https://www.colour-blindness.com/colour-blindness-tests/ishihara-colour-test-plates/
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4.&nbsp;<references />&nbsp;Color Arrangement Test [Internet]. Color Blindness. 2016 [cited 4 December 2018]. Available from: https://www.colour-blindness.com/colour-blindness-tests/colour-arrangement-test/
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Revision as of 18:43, 4 December 2018

Colour Blind is a type of eye disease, which people feel challenging to recognise and identify between certain colours, for example, red and green (Red-green color blindness) or blue and yellow (Blue-yellow color blindness)[1].

The most common colour blind is Red-green colourblind. It's a common problem that affects around 1 in 12 men and 1 in 200 women. In rare cases, some people have trouble with blues, greens and yellows instead. This is known as "blue-yellow" colour vision deficiency[2].

Symptoms

Find it difficult to tell the difference between reds, oranges, yellows, browns, and greens. Observe these colours duller than they would appear to someone with normal vision.

Tests for colour blindness

There are two of the major tests used to diagnose colour blindness are:

  1. The Ishihara test[3]. – where you're asked to identify numbers contained within images made up of different coloured dots
  2. Colour arrangement[4]. – where you're asked to arrange coloured objects in order of their different shades

References

  1. Colour vision deficiency (colour blindness) [Internet]. nhs.uk. 2016 [cited 4 December 2018]. Available from: https://www.nhs.uk/conditions/colour-vision-deficiency/
  2. Colour vision deficiency (colour blindness) [Internet]. nhs.uk. 2016 [cited 4 December 2018]. Available from: https://www.nhs.uk/conditions/colour-vision-deficiency/
  3. Ishihara Color Test [Internet]. Color Blindness. 2016 [cited 4 December 2018]. Available from: https://www.colour-blindness.com/colour-blindness-tests/ishihara-colour-test-plates/
  4. Color Arrangement Test [Internet]. Color Blindness. 2016 [cited 4 December 2018]. Available from: https://www.colour-blindness.com/colour-blindness-tests/colour-arrangement-test/
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