color blindness

inability or decreased ability to see colour, or perceive colour differences, under normal lighting conditions

Class type of: vision disorder, blindness Q133696

Facts

10 properties

Instance of: class of disease
Subclass of: vision disorder, blindness
Described by source: The Nuttall Encyclopædia, Small Brockhaus and Efron Encyclopedic Dictionary, Collier's New Encyclopedia, 1921, Armenian Soviet Encyclopedia, vol. 3, Meyers Konversations-Lexikon, 4th edition (1885–1890)^[6]^[7]^[8]^[9]^[10]
Genetic association: ATF6, OPN1SW, CNGA3, CNGB3, OPN1MW, GNAT2, PDE6C, PDE6H, OPN1LW, RPGR^[15]^[16]^[17]^[18]^[19]^[20]^[21]^[22]^[23]^[24]
Health specialty: ophthalmology^[14]
ICD-9-CM: 368.5, 368.59^[11]^[12]
Medical examination: Ishihara test^[5]
NCI Thesaurus ID: C3891^[13]
Named after: John Dalton^[4]
On focus list of Wikimedia project: WikiProject Medicine, Wikipedia:Vital articles/Level/4^[25]^[26]

🏷️ Also known as

en colour-blindness en color vision deficiency en colour blindness en color-vision disease en colour vision deficiency en color blindness en color defecticality en color-blindness en color vision defect en color vision defects ar عمى الالوان ar عمى الألوان ar عمى ألوان ar عمى الوان cs poruchy barvocitu cs daltonismus cs barvoslepost da farveblindhed da farveblind da daltonisme

🔖 Identifiers · 66

GND ID: 4121251-4
OpenAlex ID: C2909916482
A Dictionary of Genetics entry ID: 1328
AniDB tag ID: 7770
Arab Encyclopedia concept ID: 12106
Australian Educational Vocabulary ID: scot/4020
BBC News topic ID: c5ydy9pjkelt
BBC Things ID: 9f348afb-7a4f-4bdb-be6d-b7061e63ef6c
BNCF Thesaurus ID: 41500
Baidu Tieba name: 色盲
Cultureel Woordenboek ID: levenswetenschappen-en-geneeskunde/kleurenblindheid
De Agostini ID: discromatopsìa

Show all 66 identifiers +54

Dewey Decimal Classification: 614.5997, 617.759
Disease Ontology ID: DOID:13399
DiseasesDB: 2999
Elhuyar ZTH ID: 022038
Encyclopedia of China (Third Edition) ID (2026): 3Vnn9P
Encyclopedia of China (Third Edition) old ID (2021): 69700
Encyclopædia Britannica Online ID: science/color-blindness
Encyclopædia Universalis ID: daltonisme
Exact match: purl.obolibrary.org, identifiers.org, www.orpha.net
Freebase ID: /m/022xh
Genetics Home Reference Conditions ID: color-vision-deficiency
GitHub topic: color-blindness
Great Russian Encyclopedia Online ID (2017): 2628501
Great Russian Encyclopedia portal ID: dal-tonizm-2a2538
Harper's tag: color-blindness
ICD-10-CM: H53.5, H53.50
ICD-11 ID (Foundation): 2028524981
ICD-11 ID (MMS): 9D44
JSTOR topic ID (archived): color-vision-defects
KBpedia ID: ColorBlindness
KEGG ID: H00976
Krugosvet article (archived): meditsina/daltonizm
Lex ID: farveblindhed
MeSH descriptor ID: D003117
MeSH tree code: C10.597.751.941.256, C11.966.256, C23.888.592.763.941.256, C11.270.151.500
MedlinePlus ID: 001002
Microsoft Academic ID (discontinued): 2908549933
Mondo ID: MONDO_0001703
NDL Authority ID: 00570954
NHS Health A to Z ID: colour-vision-deficiency
OmegaWiki Defined Meaning: 1487486
Orphanet ID: 98658
PatientsLikeMe condition ID: color-blindness
Quora topic ID: Color-Vision-Deficiency
Raras disease ID: D98658
ScienceDirect topic ID: medicine-and-dentistry/color-blindness, veterinary-science-and-veterinary-medicine/color-blindness, social-sciences/color-blindness, pharmacology-toxicology-and-pharmaceutical-science/color-blindness, nursing-and-health-professions/color-blindness, neuroscience/color-blindness
Stack Exchange tag: stackoverflow.com
Store medisinske leksikon ID: fargeblindhet
Subreddit: ColorBlind
Topic's main category: Category:Color blindness
Treccani ID: discromatopsia
Treccani Vocabulary ID: discromatopsia
Treccani's Dizionario delle Scienze Fisiche ID: discromatopsia
Treccani's Dizionario di Medicina ID: discromatopsia
UK Parliament thesaurus ID: 485278
UMLS CUI: C0242225, C5681659
UNESCO Thesaurus ID: concept4139
Vikidia article ID: it:Daltonismo, fr:Daltonisme
WikiKids ID: Kleurenblindheid
WikiProjectMed ID: Color blindness
WikiSkripta article ID: 23984
WordNet 3.1 Synset ID: 14178314-n
YSO ID: 4645
Zhihu topic ID: 19556570

Report an error or request removal Lineage (PROV-JSON)

🔗 Connections

Subtypes 7

achromatopsia, deuteranopia, dichromatopsia, tritanopia, protanopia, dyschromatopsia, red–green color blindness

Subclass of 3

disease, blindness, vision disorder

On focus list of Wikimedia project 2

WikiProject Medicine, Wikipedia:Vital articles/Level/4

Created notable works 1

John Dalton

Described by source 1

The Nuttall Encyclopædia

Health specialty 1

ophthalmology

Medical examination 1

Ishihara test

Named after 1

John Dalton

Topic's main category 1

Category:Color blindness

← Category's main topic 1

Category:Color blindness

← Different from 1

racial color blindness

← Facet of 1

ColorADD

← FactGrid item ID 1

Saint-Paul-d'Espis

← Medical condition 1

Ishihara test

Press Enter · cited answer in seconds

Summary

color blindness is a class of disease^[1]. It is a type of vision disorder^[2] and blindness^[3].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

[4] ↑ color blindness — named after (P138): John Dalton. wikidata.org.
[2] ↑ color blindness — subclass of (P279): vision disorder. ncbi.nlm.nih.gov. ncbi.nlm.nih.gov. Provenance: wikidata.org.
[3] ↑ color blindness — subclass of (P279): blindness. Prevalence of color blindness among school children in three primary schools of Gish -Abay town district, Amhara regional state, north-west Ethiopia. Retrieved 2020-11-29. wikidata.org.
[5] ↑ color blindness — medical examination (P923): Ishihara test. wikidata.org.
[6] ↑ color blindness — described by source (P1343): The Nuttall Encyclopædia. wikidata.org.
[7] ↑ color blindness — described by source (P1343): Small Brockhaus and Efron Encyclopedic Dictionary. wikidata.org.
[8] ↑ color blindness — described by source (P1343): Collier's New Encyclopedia, 1921. wikidata.org.
[9] ↑ color blindness — described by source (P1343): Armenian Soviet Encyclopedia, vol. 3. wikidata.org.
[10] ↑ color blindness — described by source (P1343): Meyers Konversations-Lexikon, 4th edition (1885–1890). wikidata.org.
[11] ↑ color blindness — ICD-9-CM (P1692): 368.5. Disease Ontology. Retrieved 2019-05-15. wikidata.org.
[12] ↑ color blindness — ICD-9-CM (P1692): 368.59. Monarch Disease Ontology release 2018-06-29. Retrieved 2018-08-03. wikidata.org.
[13] ↑ color blindness — NCI Thesaurus ID (P1748): C3891. Monarch Disease Ontology release 2018-06-29. Retrieved 2018-08-03. wikidata.org.
[14] ↑ color blindness — health specialty (P1995): ophthalmology. wikidata.org.
[15] ↑ color blindness — genetic association (P2293): ATF6. Retrieved 2026-10-23. wikidata.org.
[16] ↑ color blindness — genetic association (P2293): OPN1SW. Retrieved 2026-10-23. wikidata.org.
[17] ↑ color blindness — genetic association (P2293): CNGA3. Retrieved 2026-10-23. wikidata.org.
[18] ↑ color blindness — genetic association (P2293): CNGB3. Retrieved 2026-10-23. wikidata.org.
[19] ↑ color blindness — genetic association (P2293): OPN1MW. Retrieved 2026-10-23. wikidata.org.
[20] ↑ color blindness — genetic association (P2293): GNAT2. Retrieved 2026-10-23. wikidata.org.
[21] ↑ color blindness — genetic association (P2293): PDE6C. Retrieved 2026-10-23. wikidata.org.
[22] ↑ color blindness — genetic association (P2293): PDE6H. Retrieved 2026-10-23. wikidata.org.
[23] ↑ color blindness — genetic association (P2293): OPN1LW. Retrieved 2026-10-23. wikidata.org.
[24] ↑ color blindness — genetic association (P2293): RPGR. Retrieved 2026-10-23. wikidata.org.
[25] ↑ color blindness — on focus list of Wikimedia project (P5008): WikiProject Medicine. wikidata.org.
[26] ↑ color blindness — on focus list of Wikimedia project (P5008): Wikipedia:Vital articles/Level/4. wikidata.org.

Class ancestry

[1] ↑ color blindness is an instance of class of disease (Q112193867) [P31, primary]. Wikidata. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA

4ort.xyz Knowledge Graph. (2026). color blindness. Retrieved November 7, 2026, from https://4ort.xyz/entity/color-blindness

MLA “color blindness.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 Nov. 2026, https://4ort.xyz/entity/color-blindness.

BibTeX

@misc{4ortxyz_color-blindness_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{color blindness}}, year = {2026}, url = {https://4ort.xyz/entity/color-blindness}, note = {Accessed: 2026-11-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): color blindness — https://4ort.xyz/entity/color-blindness (retrieved 2026-11-07)

Canonical URL: https://4ort.xyz/entity/color-blindness · Last refreshed: November 7, 2026

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

18d ago · ACorrêa (WMB) · 2026-10-24 view diff on Wikidata ↗

Genetic association → ATF6, OPN1SW, CNGA3 +1

Harper's tag → color-blindness

Raras disease ID → D98658

"Changed the item: QuickStatements 3.0 batch #61469: Raras.org data import"
17w ago · Nyuhn · 2026-07-10 view diff on Wikidata ↗

Encyclopedia of China (Third Edition) ID (2026) → 3Vnn9P

"Changed the item: QuickStatements 3.0 batch #40849: ZGBK ID"
18w ago · JhealdBatch bot · 2026-07-03 view diff on Wikidata ↗

Subclass of → vision disorder, blindness

"Changed the item: QuickStatements 3.0 batch #39732: rm redundant subclass"
25w ago · Twofivesixbot bot · 2026-05-17 view diff on Wikidata ↗

Medical examination → Ishihara test

Named after → John Dalton

Subclass of → vision disorder, blindness

Described by source → The Nuttall Encyclopædia, Small Brockhaus and Efron Encyclopedic Dictionary, Collier's New Encyclopedia, 1921 +1

+ 5 other properties edited (see Wikidata diff for full list)

"Changed claim qualifiers: YSO ID: 4645, mv to monolingual text names on YSO statements"

Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.