tritanopia

English

Etymology

From trito- (“third (color)”) +‎ an- (“without”) +‎ -opia (“vision”).

Noun

tritanopia (countable and uncountable, plural tritanopias)

1. (ophthalmology) A form of color blindness in which the retina is deficient in or lacks cone cells containing opsins that respond to the color blue, resulting in an inability to distinguish blue from green.
   • 1990, T. E. Frumkes, “7: Classical and Modern Psychological Studies of Dark and Light Adaptation”, in K. Nicholas Leibovic, editor, Science of Vision, page 203:

     Tritanopia is an extremely rare hereditary condition corresponding to a loss in function of the short wavelength sensitive cones. To produce transient tritanopia, the eye of the normal observer is first strongly adapted to a yellow light that maximally adapts the pigment of the long and middle wavelength cones, but has relatively less influence on the short wavelength sensitive cones.

   • 1997, M. Alpern, K. Kitahara, D. H. Krantz, 9: Perception of Colour in Unilateral Tritanopia, Alex Byrne, David R. Hilbert (editors), Readings on Color, Volume 2: The Science of Color, page 231,

     M. Alpern et. al 1983 gives results of colour matching and colour discrimination for each eye separately of a subject who acquired tritanopia in his left eye while remaining a normal trichromat with his right one.

   • 2016, Daniel Kernell, Colours and Colour Vision: An Introductory Survey‎^[1], page 167:

     People with an inborn blue-green blindness (tritanopia) may completely lack the function of these receptor cells. […] The inheritance of inborn tritanopia is not sex-linked; the gene for the S-cone opsin is localized to chromosome 7.

Hypernyms

• (form of color blindness): color blindness, blue-yellow color blindness

Related terms

• deuteranopia
• protanopia
• tritanope

Translations

a form of color blindness

• Chinese:

  Mandarin: 蓝色盲, 第三色盲

• Finnish: tritanopia (fi), sinisokeus
• Galician: tritanopía (gl) f
• Portuguese: tritanopia f

See also

• achromatopsia
• cone dystrophy
• deuteranomaly
• dichromacy
• tetrachromacy
• trichromacy
• tritanomaly

Anagrams

• patriation

Finnish

Etymology

Internationalism (see English tritanopia).

Pronunciation

• IPA^(key): /ˈtritɑnopiɑ/, [ˈt̪rit̪ɑ̝ˌno̞piɑ̝]
• Rhymes: -opiɑ
• Syllabification^(key): tri‧ta‧no‧pi‧a

Noun

tritanopia

1. tritanopia

   Synonym: sinisokeus

Declension

Inflection of tritanopia (Kotus type 12/kulkija, no gradation)
nominative		tritanopia	tritanopiat
genitive		tritanopian	tritanopioiden tritanopioitten
partitive		tritanopiaa	tritanopioita
illative		tritanopiaan	tritanopioihin
		singular	plural
nominative		tritanopia	tritanopiat
accusative	nom.	tritanopia	tritanopiat
	gen.	tritanopian
genitive		tritanopian	tritanopioiden tritanopioitten tritanopiain rare
partitive		tritanopiaa	tritanopioita
inessive		tritanopiassa	tritanopioissa
elative		tritanopiasta	tritanopioista
illative		tritanopiaan	tritanopioihin
adessive		tritanopialla	tritanopioilla
ablative		tritanopialta	tritanopioilta
allative		tritanopialle	tritanopioille
essive		tritanopiana	tritanopioina
translative		tritanopiaksi	tritanopioiksi
abessive		tritanopiatta	tritanopioitta
instructive		—	tritanopioin
comitative		See the possessive forms below.

Possessive forms of tritanopia (Kotus type 12/kulkija, no gradation)

first-person singular possessor singular plural nominative tritanopiani tritanopiani accusative nom. tritanopiani tritanopiani gen. tritanopiani genitive tritanopiani tritanopioideni tritanopioitteni tritanopiaini rare partitive tritanopiaani tritanopioitani inessive tritanopiassani tritanopioissani elative tritanopiastani tritanopioistani illative tritanopiaani tritanopioihini adessive tritanopiallani tritanopioillani ablative tritanopialtani tritanopioiltani allative tritanopialleni tritanopioilleni essive tritanopianani tritanopioinani translative tritanopiakseni tritanopioikseni abessive tritanopiattani tritanopioittani instructive — — comitative — tritanopioineni second-person singular possessor singular plural nominative tritanopiasi tritanopiasi accusative nom. tritanopiasi tritanopiasi gen. tritanopiasi genitive tritanopiasi tritanopioidesi tritanopioittesi tritanopiaisi rare partitive tritanopiaasi tritanopioitasi inessive tritanopiassasi tritanopioissasi elative tritanopiastasi tritanopioistasi illative tritanopiaasi tritanopioihisi adessive tritanopiallasi tritanopioillasi ablative tritanopialtasi tritanopioiltasi allative tritanopiallesi tritanopioillesi essive tritanopianasi tritanopioinasi translative tritanopiaksesi tritanopioiksesi abessive tritanopiattasi tritanopioittasi instructive — — comitative — tritanopioinesi first-person plural possessor singular plural nominative tritanopiamme tritanopiamme accusative nom. tritanopiamme tritanopiamme gen. tritanopiamme genitive tritanopiamme tritanopioidemme tritanopioittemme tritanopiaimme rare partitive tritanopiaamme tritanopioitamme inessive tritanopiassamme tritanopioissamme elative tritanopiastamme tritanopioistamme illative tritanopiaamme tritanopioihimme adessive tritanopiallamme tritanopioillamme ablative tritanopialtamme tritanopioiltamme allative tritanopiallemme tritanopioillemme essive tritanopianamme tritanopioinamme translative tritanopiaksemme tritanopioiksemme abessive tritanopiattamme tritanopioittamme instructive — — comitative — tritanopioinemme second-person plural possessor singular plural nominative tritanopianne tritanopianne accusative nom. tritanopianne tritanopianne gen. tritanopianne genitive tritanopianne tritanopioidenne tritanopioittenne tritanopiainne rare partitive tritanopiaanne tritanopioitanne inessive tritanopiassanne tritanopioissanne elative tritanopiastanne tritanopioistanne illative tritanopiaanne tritanopioihinne adessive tritanopiallanne tritanopioillanne ablative tritanopialtanne tritanopioiltanne allative tritanopiallenne tritanopioillenne essive tritanopiananne tritanopioinanne translative tritanopiaksenne tritanopioiksenne abessive tritanopiattanne tritanopioittanne instructive — — comitative — tritanopioinenne third-person possessor singular plural nominative tritanopiansa tritanopiansa accusative nom. tritanopiansa tritanopiansa gen. tritanopiansa genitive tritanopiansa tritanopioidensa tritanopioittensa tritanopiainsa rare partitive tritanopiaansa tritanopioitaan tritanopioitansa inessive tritanopiassaan tritanopiassansa tritanopioissaan tritanopioissansa elative tritanopiastaan tritanopiastansa tritanopioistaan tritanopioistansa illative tritanopiaansa tritanopioihinsa adessive tritanopiallaan tritanopiallansa tritanopioillaan tritanopioillansa ablative tritanopialtaan tritanopialtansa tritanopioiltaan tritanopioiltansa allative tritanopialleen tritanopiallensa tritanopioilleen tritanopioillensa essive tritanopianaan tritanopianansa tritanopioinaan tritanopioinansa translative tritanopiakseen tritanopiaksensa tritanopioikseen tritanopioiksensa abessive tritanopiattaan tritanopiattansa tritanopioittaan tritanopioittansa instructive — — comitative — tritanopioineen tritanopioinensa