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A comment on Why we're blind to the color blue. Parent comment

Re:Why we're blind to the color blue by RHSeeger on Saturday July 17, 2021 @12:58AM (#27863616)
> About one in three people has some degree of astigmatism.

https://my.clevelandclinic.org/health/diseases/8576-astigmat...

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Re:Why we're blind to the color blue by jbluepolarbear on Saturday July 17, 2021 @01:57AM (#27863811)
> about 9 in 10 people have some degree of Astigmatism

https://patient.info/eye-care/astigmatism

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Re:Why we're blind to the color blue by RHSeeger on Saturday July 17, 2021 @02:34PM (#27867774)
I wonder why there's such a big degree in difference between the two claims.
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Re:Why we're blind to the color blue by jbluepolarbear on Saturday July 17, 2021 @09:32PM (#27870146)
The 30-60% is most likely for those affected by their astigmatism. Astigmatism is when the eye isn’t a perfect sphere. Many people have very slight astigmatism and don’t require correction.
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