retinal

(redirected from retinal pigment epithelial layer)
Also found in: Thesaurus, Medical, Encyclopedia.

ret·i·nal 1

 (rĕt′n-ăl′)
adj.
Of or relating to the retina of the eye.

ret·i·nal 2

 (rĕt′n-ăl′, -ôl′)
n.
Either of two chromophores that are aldehydes of vitamin A1 and vitamin A2 and that bind covalently with an opsin protein to form rhodopsin or porphyropsin. Also called retinene.

ret•i•nal1

(ˈrɛt n əl)

adj.
of or pertaining to the retina of the eye.

ret•i•nal2

(ˈrɛt nˌæl, -ˌɔl)

n.
an orange visual pigment, C20H28O, the active component of rhodopsin and iodopsin, that is liberated upon the absorption of light in the vision cycle.
[1940–45; retin (a) + -al3]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.retinal - either of two yellow to red retinal pigments formed from rhodopsin by the action of light
pigment - dry coloring material (especially a powder to be mixed with a liquid to produce paint, etc.)
retinal purple, rhodopsin, visual purple - a red photopigment in the retinal rods of vertebrates; dissociates into retinene by light
Adj.1.retinal - in or relating to the retina of the eye; "retinal cells"
Translations
rétinal

ret·i·nal

a. de la retina, retiniano-a; rel. a la retina;
___ degenerationdeterioro retiniano, deterioración retiniana;
___ perforationperforación ___.

retinal

adj retiniano, de retina
References in periodicals archive ?
They then raised an additional 100,000 [pounds sterling] through the Moorfields Eye Charity to further develop its capacity and capabilities, including the ability to visualise the retinal pigment epithelial layer and microvasculature at the back of the eye.
The researchers found expression of genes responsible for the healthy renewal of rods and cones in the retina was reduced and that this problem originates in the photoreceptors themselves rather than in the adjacent retinal pigment epithelial layer as once thought.