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ret·i·nal 1

Of or relating to the retina of the eye.

ret·i·nal 2

 (rĕt′n-ăl′, -ôl′)
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.


(ˈrɛt n əl)

of or pertaining to the retina of the eye.


(ˈrɛt nˌæl, -ˌɔl)

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"


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


adj retiniano, de retina
References in periodicals archive ?
For additional information about the Retinal Surgery Devices Market, visit : http://www.
Diabetic patients were more prone to developing retinal diseases and needed to have regular eye checkups even if their eye sight was not weak.
The output takes the form of action potentials in retinal ganglion cells whose axons form the optic nerve.
said that the 3D complement of human retinal tissue, not only has the architectural organization of the retina but also has the ability to sense light, and the work advances opportunities for vision-saving research and may ultimately lead to technologies that restore vision in people with retinal diseases.
This article offers a clear understanding of the retinal landmarks highlighted in a normal OCT scan and the images observed in common retinal pathologies.
com/research/5mvgnz/vitreo_retinal) has announced the addition of GlobalData's new report "Vitreo Retinal Surgery Devices Market Outlook in BRICS (Brazil, Russia, India, China, South Africa) to 2018" to their offering.
Less change in vessels pattern during life, high security, more reliability and stability are important feature which exist in retinal image [2-3] .
of Paris, Creteil) collect seminar notes by experts on the latest knowledge basic science and approaches for treating retinal conditions.
Digital retinal photography is becoming an increasingly valued part of the eye examinations carried out by optometrists.
8 million grant to Radboud University Nijmegen in the Netherlands, one of the world' s foremost institutions for genetic, laboratory, and clinical research for inherited retinal degenerative diseases (as well as home to several JVIB authors).
The patent covers various methods of use of QLT091001 in the treatment of diseases associated with an endogenous 11-cis- retinal deficiency.

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