retina

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ret·i·na

 (rĕt′n-ə)
n. pl. ret·i·nas or ret·i·nae (rĕt′n-ē′)
A delicate, multilayered, light-sensitive membrane lining the inner eyeball and connected by the optic nerve to the brain.

[Middle English, from Medieval Latin rētina, from Latin rēte, net.]

ret′i·nal adj.

retina

(ˈrɛtɪnə)
n, pl -nas or -nae (-ˌniː)
(Anatomy) the light-sensitive membrane forming the inner lining of the posterior wall of the eyeball, composed largely of a specialized terminal expansion of the optic nerve. Images focused here by the lens of the eye are transmitted to the brain as nerve impulses
[C14: from Medieval Latin, perhaps from Latin rēte net]
ˈretinal adj

ret•i•na

(ˈrɛt n ə, ˈrɛt nə)

n., pl. ret•i•nas, ret•i•nae (ˈrɛt nˌi)
the innermost coat of the posterior part of the eyeball that receives the image produced by the lens, is continuous with the optic nerve, and consists of several layers, one of which contains the rods and cones that are sensitive to light.
[1350–1400; Middle English ret(h)ina < Medieval Latin rētina, perhaps = Latin rēt-, s. of rēte net + -ina -ine3]

Ret•in-A

(ˌrɛt nˈeɪ)
Trademark.
a brand of tretinoin, used esp. to reduce wrinkles caused by overexposure to the sun.

ret·i·na

(rĕt′n-ə)
The light-sensitive membrane that lines the inside of the back of the eyeball, connected to the brain by the optic nerve. The retina of vertebrate animals contains specialized cells, called rods and cones, that absorb light.

retina

- From Latin rete, "net," as there is a net of nerves making up this layer of the eyeball.
See also related terms for net.

retina


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The back of the eyeball where neurons convert light into electrical impulses that pass through the brain. See cones, rods
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.retina - the innermost light-sensitive membrane covering the back wall of the eyeballretina - the innermost light-sensitive membrane covering the back wall of the eyeball; it is continuous with the optic nerve
neuroepithelium - epithelium associated with special sense organs and containing sensory nerve endings
eye, oculus, optic - the organ of sight
tissue layer, membrane - a pliable sheet of tissue that covers or lines or connects the organs or cells of animals or plants
fovea, fovea centralis - area consisting of a small depression in the retina containing cones and where vision is most acute
parafovea - area of the retina immediately surrounding the fovea
macula lutea, macular area, yellow spot, macula - a small yellowish central area of the retina that is rich in cones and that mediates clear detailed vision
visual cell - one of the cells of the retina that is sensitive to light
optic disc, optic disk, blind spot - the point where the optic nerve enters the retina; not sensitive to light
cone cell, retinal cone, cone - a visual receptor cell in the retina that is sensitive to bright light and to color
retinal rod, rod cell, rod - a visual receptor cell that is sensitive to dim light
Translations
شَبَكِيَّة العَيْن
sítnice
nethinderetina
NetzhautRetina
retina
sjónhimna
tinklainė
tīklene
sietnica
ağ tabakaretina

retina

[ˈretɪnə] N (retinas or retinae (pl)) [ˈretɪniː] (Anat) → retina f

retina

[ˈrɛtɪnə] nrétine f

retina

n pl <-e or -s> → Netzhaut f, → Retina f (spec)

retina

[ˈrɛtɪnə] nretina

retina

(ˈretinə) noun
the part of the back of the eye that receives the image of what is seen.

ret·i·na

n. retina, la capa más interna del ojo que recibe imágenes y transmite impulsos visuales al cerebro;
detachment of the ___desprendimiento de la ___.

retina

n (pl -nas o -nae) retina; detached — desprendimiento de retina
References in periodicals archive ?
The outer two-thirds of the retina (outer plexiform layer to retinal pigment epithelium) and the macular region receive their oxygen and nutrients from the choroidal circulation, which is supplied by the posterior ciliary arteries (PCA).
He was looking for volumetric changes in several of the retinal layers: the peripapillary retinal nerve fiber layer, macular RNFL, ganglion cell layer, inner plexiform layer, outer nuclear layer, outer plexiform layer, and inner nuclear layer.
10],[11] There was a 27% decrease in the thickness of the inner plexiform layer in mice after 5.
Thus, the dove's retina is twice as thick as that of humans because of the more developed granular and plexiform layer.
the inner plexiform layer including dendrites, the bodies and the RNFL (axons) of ganglion cells.
8 and 13), aggregated immunoreactivity also was observed in the inner plexiform layer of the retina (Figure 1, panel f).
Because the outer plexiform layer at the macula has a large potential interstitial space between cells, the earliest exudative material is located in this region.
The ganglion cell complex (GCC) scan protocol was used to measure the macular GCC thickness from the inner limiting membrane (ILM) to the inner plexiform layer (IPL).
Reflecting the partitioning of visual information into parallel channels, the retinal layer in which bipolar cell axon terminals meet their synaptic partners, is highly organized: This so-called inner plexiform layer effectively serves as the retina s switch board : The input is provided by the different bipolar cell channels , while the output is carried by an even larger number of channels, represented by ganglion cells that form the optic nerve.
The inner segment and outer segment lines, external limiting membrane and the inner retinal structure including retinal nerve fiber layer (RNFL) and plexiform layer can be visualized more clearly by SD-OCT with 5 pm axial resolution.
The rosette or petalloid appearance is due to the anatomical layout of the outer plexiform layer and the vertical Muller fibers.