central retinal artery

(redirected from Retinal artery)

central retinal artery

[TA]
a branch of the ophthalmic artery that penetrates the optic nerve 1 cm behind the eye (extraocular part) to enter the eye (intraocular part of artery) at the optic papilla in the retina; it divides into superior and inferior temporal and nasal arterioles.

cen·tral ret·i·nal ar·te·ry

(sen'trăl ret'i-năl ahr'tĕr-ē) [TA]
A branch of the ophthalmic artery that penetrates the optic nerve 1 cm behind the eye (extraocular part) to enter the eye (intraocular part) at the optic papilla in the retina; it divides into superior and inferior temporal and nasal branches.
Synonym(s): arteria centralis retinae [TA] .

Central retinal artery

A branch of the ophthalmic artery that supplies blood to the retina and branches to form the arterioles of the retina.

vein 

A tubular vessel that carries blood towards the heart. See artery.
anterior ciliary vein One of many veins that drains the ciliary body, the deep and superficial plexuses, the anterior conjunctival veins and the episcleral veins to empty into the vortex veins.
anterior facial vein Vein branching from the angular vein at the side of the nose and running obliquely downward and backward across the face. It crosses the mandible and joins the posterior facial vein to form the common facial vein, which opens into the internal jugular. The anterior facial vein drains the part of the eyelids anterior to the tarsus.
aqueous vein One of several veins serving as exit channels for the aqueous humour, which they carry from the canal of Schlemm to the episcleral, conjunctival and subconjunctival veins.
central retinal vein A vein formed by the junction of the superior and inferior retinal veins at about the level of the lamina cribrosa on the temporal side of the central retinal artery. After a short course within the optic nerve, it empties into the cavernous sinus, the superior ophthalmic vein and sometimes into the inferior ophthalmic vein. See central retinal artery; retinal vein occlusion.
conjunctival vein One of many veins that drains the tarsal conjunctiva, the fornix, and the major portion of the bulbar conjunctiva.
inferior ophthalmic vein Vein that commences as a plexus near the floor of the orbit, runs backward on the inferior rectus muscles and divides into two branches, one which runs to the pterygoid venous plexus and the other which joins the cavernous sinus, usually via the superior ophthalmic vein. The inferior ophthalmic vein receives tributaries from the lower and lateral ocular muscles, the conjunctiva, the lacrimal sac and the two inferior vortex veins.
palpebral vein One of the veins of the upper or lower eyelid that empties for the most part into the anterior facial vein as well as into the angular, supraorbital, superior and inferior ophthalmic, the lacrimal and the superficial temporal veins.
posterior ciliary vein See vortex vein.
superior ophthalmic vein Vein that is formed near the root of the nose by a communication from the angular vein soon after it has been joined by the supraorbital vein. It passes into the orbit above the medial palpebral ligament, runs backward to the sphenoidal fissure where it usually meets the inferior ophthalmic vein, and drains into the cavernous sinus. It has many tributaries: the inferior ophthalmic vein, the anterior and posterior ethmoidal veins, the muscular vein, the lacrimal vein, the central retinal vein, the anterior ciliary vein and two of the posterior ciliary veins (the superior ones).
vortex vein One of usually four (two superior and two inferior) veins which pierce the sclera obliquely on either side of the superior and inferior recti muscles, some 6 mm behind the equator of the globe. The two superior ones open into the superior ophthalmic vein and the two inferior open into the inferior ophthalmic vein. These veins drain the posterior uveal tract. Syn. posterior ciliary vein; vena vorticosa. See anterior ciliary vein.
References in periodicals archive ?
9) Measurement of haemodynamic characteristics (see Figure 2, page 67) includes: blood flow; oxygen saturation; vessel calibre (referred to as central retinal artery equivalent (CRAE) and central retinal vein equivalent (CRVE)); vessel tortuosity; and the change of vessel diameter due to flicker light (referred to as vessel reactivity).
This is due to vasospasm of the central retinal artery, which usually resolves in the postpartum period due to normalisation of blood flow.
In conclusion, we used EDI-OCT examination to confirm the decrease in SFCT and retinal artery lumina in Chinese CADASIL patients.
Similarly, blindness has been reported due to retinal artery embolism following corticosteroid administration into the sinuses.
Ocular involvement can range from transient unilateral acute blindness caused by emboli that break off from the atherosclerotic plaque in the stenosis, to chronic OIS due to persistent hypoperfusion or complete blindness due to occlusion of the central retinal artery or ophthalmic artery.
This portion of retina is supplied by the central retinal artery, not the posterior ciliary arteries.
Soft tissue vascular compromise generally requires 200 units, and retinal artery occlusion, 500 units or more.
Cigarette smoking and increased age have been associated with low blood velocity of ophthalmic artery, while systolic blood pressure has been positively correlated with velocities in the ophthalmic artery and the central retinal artery [34].
The choroidal vascular bed receives the bigger blood flow of about 65-85% of the total blood flow and the remaining 15-35% flows to the retina through the central retinal artery [3].
Acute complications of endovascular treatment include distal thromboembolic events (occlusion of the central retinal artery, ischemic stroke due to potential anastomosis between the IMA and the ophthalmic artery) and local tissue infarct.
M2 EQUITYBITES-September 15, 2015-Amarantus passes US FDA's orphan drug designation for MANF for retinal artery occlusion