The Island of the Colorblind
essay by Oliver Sacks

The Island of the Colorblind is a 1997 book by neurologist Oliver Sacks about achromatopsia on the Micronesian atoll of Pingelap. It was published in the UK as The Island of the Colour-blind. The second half of the book is devoted to the mystery of Lytico-Bodig disease in Guam.
The subject was also presented in an episode of the BBC documentary series The Mind Traveller.
The public source identifies “The Island of the Colorblind” as essay by Oliver Sacks. This brief keeps that definition visible, then builds a research path around Island, Colorblind and essay.
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Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Aug 30, 2025. The linked authority identifier is Q3819468. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1997.
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This entry incorporates text from “The Island of the Colorblind” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.