ღ Carol jinx~☆~'s Reviews > The Island of the Colorblind

The Island of the Colorblind by Oliver Sacks
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Jun 03, 11

bookshelves: informational-interesting
Read in April, 2011

I love Oliver Sacks. He picks interesting things to write about. I first read The Man Who Mistook His Wife for a Hat a few years ago (now who could resist such a catchy title) and I loved it.
This book addresses a disease I didn't think was so prevalent, colorblindness. I just thought that was a good excuse for men who couldn't put their ties and shirts together properly but now I consider myself more informed on the disease,achromatopsia.
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05/29/2011 page 100
30.0%

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message 1: by Valerie (new) - added it

Valerie You have to distinguish, however, between true achromatopsia and Daltonism (red/green colorblindness), which latter is much commoner.

Daltonism is a sex-linked, not-dominant trait (in the main, though there are complicating factors). My mother and her two sisters (all carriers for Daltonism) had 13 children between them--10 boys and three girls. Of the boys, 5 were red/green colorblind. But among my extended family there have only been two colorblind females--one, my mother's father's brother's daughter, still alive.

Further, the degree of colorblindness varies. One of my cousins was diagnosed at about the age of three when he ran into the house shouting "Mother, mother! Come look at the pretty blue flowers!". But the flowers were purple.

On the other hand, one of my brothers commented that he never knew he WAS colorblind until he couldn't read the numbers in the test circles.

Funny thing is, two of my cousins' favorite color was brown--though since they were red/green colorblind, you'd think they couldn't see the color brown (which is a combination of red and green) hardly at all.


ღ Carol jinx~☆~ That is so interesting. I seriously have never known anyone that was colorblind. In the book, the guy who was totally colorblind seemed to see things that color-sighted people couldn't see. Shades of things.
You should keep track of this in a journal for future generations of your family.


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