AnatomyDiseasesChemicals and DrugsAnalytical, Diagnostic and Therapeutic Techniques and EquipmentPsychiatry and PsychologyPhenomena and ProcessesHealth Care
Retinal Artery OcclusionRetinal ArteryRetinal VeinOphthalmic ArteryOphthalmodynamometryArteriesCiliary ArteriesSusac SyndromeFluorescein AngiographyRetinal VesselsUltrasonography, Doppler, ColorRetinal DiseasesPulmonary ArteryFundus OculiRetinal Vein OcclusionBlood Flow VelocityCarotid ArteriesOrbitRenal ArteryCerebral ArteriesRegional Blood FlowFemoral ArteryMesenteric ArteriesCarotid Artery DiseasesCarotid Artery, InternalBasilar ArteryBlindnessAmaurosis FugaxArterial Occlusive DiseasesCarotid Artery, ExternalIntraocular PressureLaser-Doppler FlowmetryGanglionectomyVentricular Function, LeftGlaucoma, NeovascularCoronary Artery BypassIliac ArteryVertebral ArteryVisual AcuityOptic DiskEyeMammary ArteriesRadial ArterySneddon SyndromeSubclavian ArteryBlood PressureMyographyVasodilationVentricular Dysfunction, LeftParacentesisChoroidRetinal NeuronsEye DiseasesCoronary VesselsOptic Neuropathy, IschemicSplenic ArteryRetinaBrachial ArteryVasoconstrictionMethyldopaEisenmenger ComplexCarotid Artery, CommonHepatic ArteryEmbolismMuscle, Smooth, VascularVasodilator AgentsTreatment OutcomeEndothelium, VascularCeliac ArteryProspective StudiesNitroarginineMesenteric Artery, SuperiorRetrospective StudiesHypertrophy, Left VentricularCarotid StenosisFollow-Up StudiesMiddle Cerebral ArteryUmbilical ArteriesThoracic ArteriesOphthalmoscopyRenal Artery ObstructionCoronary AngiographyGlaucoma, Open-AngleTemporal ArteriesMuscle RelaxationGlaucomaBronchial ArteriesFibrinolytic AgentsInjectionsPopliteal ArteryUlnar ArteryVision DisordersOptic NerveElectroretinographyUterine Artery
VeinCilioretinal arteryCRAODetachmentIschemiaCiliary arteryRetinaInternal carotiOphthalmic or central retinaBRAOExternal carotiPatients with retinal emboliBranchAcuteBranchesMiddle meningArterialExaminationCherry red spotCarotidGiant cell arteBifurcationVesselsEmbolizationEmboliFundusChoroidInferiorThicknessIncidenceBlockageVisual acuityHyaloid arteryOcularDefectsMacular DegenerationLarge arteriesDorsal nasalBloodOccurOptical coherence tomography aBiopsyEmbolusObstructionTemporal arteriesPolyvinyl alcoholVasculitisVeinsBlindnessCoronaryIrreversibleLateralPigment epithelialOptic nerveDisordersVitreousPainless
Vein8
  • Central retinal artery and vein occlusion - Protein C Deficiency 33 year old male 291 views 33 year old male with vision loss for 3 hours. (retinagallery.com)
  • Central retinal artery and vein occlusion - Protein C Deficiency 33 year old male 307 views 33 year old male with vision loss for 3 hours. (retinagallery.com)
  • Examination revealed the findings of a combined occlusion of central retinal vein and artery in the left eye, with cutaneous lesions resembling acute erythema nodosum. (jamanetwork.com)
  • Central retinal vein occlusion blocks the outflow of blood from the eye, leaving a bloody engorged mess. (benwhite.com)
  • 5-7 Lp(a) level is also a significant predictor of coronary stenosis progression, especially in left main artery as well as central retinal vein occlusion. (cadiresearch.org)
  • The exact cause of CRVO is unknown, but may include other problems with the central retinal vein. (pateleyeassociates.com)
  • micrograph of rubeosis and posterior synechiae with vitreous haemorrhage asked about the likely diagnosis in a 75 year old, I mentioned central retinal vein occlusion. (mrcophth.com)
  • An anomalous pulmonary venous return in which the right PULMONARY VEIN is not connected to the LEFT ATRIUM but to the INFERIOR VENA CAVA. (bvsalud.org)
Cilioretinal artery9
  • A cilioretinal artery occurs in approximately 14% of the population. (medscape.com)
  • In those with a cilioretinal artery supplying the macula, a cherry red spot is not observed. (medscape.com)
  • The central retinal artery is affected in 57% of occlusions, the branch retinal artery is involved in 38% of occlusions, and cilioretinal artery obstructions occur in 5% of occlusions. (medscape.com)
  • Note the cilioretinal artery. (asrs.org)
  • Dr. In our study, we aim to present an interesting case who developed central retinal artery occlusion with preserved central vision because of the presence of cilioretinal artery. (retinavitreousjournal.com)
  • Since neurologic examination and VEP examination were normal, we carefully reexamined the fundus, and recognized the presence of cilioretinal artery in the right eye. (retinavitreousjournal.com)
  • Given these findings, the diagnosis of the previous occlusion of central retinal artery in the presence of cilioretinal artery was assumed. (retinavitreousjournal.com)
  • SRD in the distribution of the cilioretinal artery (CA) was observed (Fig. 1A and 1B). (cancerhugs.com)
  • Open in another windows Fig. 1 (A) Fluorescein angiography (FA) demonstrated delayed filling from the choroidal watershed area and cilioretinal artery (CA) concurrently with normal filling up of arterial branches from your central retinal artery. (cancerhugs.com)
CRAO6
Detachment14
  • My dad had a retinal detachment which was found overnight and he had to undergo retinal detachment surgery (vitrectomy) within 7days. (neoretina.com)
  • I know her from since 3 years she diagnosed the retina detachment in my left eye and explained about the treatment. (neoretina.com)
  • The essential requirements for a rhegmatogenous retinal detachment include a retinal break (rhegma = rent or rupture) and vitreous liquefaction sufficient to allow fluid in the vitreous cavity to pass through the break(s) into the subretinal space. (aao.org)
  • The usual pathological sequence that results in retinal detachment is vitreous liquefaction followed by a posterior vitreous detachment (PVD), which in turn causes retinal tears at the sites of significant vitreoretinal adhesions (Figure 1). (aao.org)
  • All ocular conditions that are associated with an increased prevalence of vitreous liquefaction and PVD or with an increased number or extent of vitreoretinal adhesions are associated with a higher incidence of retinal detachment, including trauma. (aao.org)
  • The majority of eyes with retinal breaks do not develop retinal detachment because normal physiological forces keep the retina in place. (aao.org)
  • However, the combination of retinal breaks, vitreous liquefaction and detachment, traction on the retina (vitreoretinal traction), and intraocular fluid currents associated with movement of liquid vitreous and subretinal fluid can overwhelm these "attachment factors," causing retinal detachment. (aao.org)
  • Major risk factors have in common an increased incidence of retinal break(s), vitreous liquification and detachment, and abnormal vitreoretinal adhesions. (aao.org)
  • As noted above, retinal detachment occurs when the combination of factors that promote retinal detachment overwhelms the normal attachment forces. (aao.org)
  • Vitreous traction usually persists at the edge of a tear, which promotes progression of the retinal detachment. (aao.org)
  • 62 year old man with a rhegmatogenous retinal detachment involving the foveal center in his left eye as depicted on this Zeiss Stratus OCT image. (asrs.org)
  • Fundus photograph of a 25-year-old emmetropic male graduate student with an inferotemporal phakic chronic asymptomatic rhegmatogenous retinal detachment with a demarcation line in the right eye. (asrs.org)
  • We report a distinctive case of visible recovery where intravitreal bevacizumab shot (IVB) completely resolved serous retinal detachment (SRD) supplementary to posterior ciliary artery (PCA) occlusion following brain operation. (cancerhugs.com)
  • E) Optical coherence tomography displaying diffuse buy 184025-18-1 serous retinal detachment with pigment epithelial detachment (central retinal width [CRT], 834 m). (cancerhugs.com)
Ischemia7
  • thus, retinal recovery is possible even after days of ischemia. (medscape.com)
  • 2 - 5 , 12 - 15 In this situation, the benefits of preoperative embolization must be weighed against the risk of complications, as an inadvertent interruption of blood flow to the central retinal artery may lead to retinal ischemia and visual compromise. (ajnr.org)
  • a 4 month-postoperative right-eye whole retinal, deep, and choroidal OCT angiogram show retinal ischemia predominantly in the deep plexus. (biomedcentral.com)
  • AION represents an acute ischemic disorder (a segmental infarction) of the ONH supplied by the posterior ciliary arteries (PCAs), while PION has no specific location in the posterior part of the optic nerve and does not represent ischemia in a specific artery [ 1 ]. (intechopen.com)
  • Fluorescein angiogram of the right eye of a 27-year-old female with mixed connective tissue disease and marked retinal ischemia. (asrs.org)
  • Fluorescein angiogram of a 65-year-old poorly controlled diabetic with decreased vision in the left eye due to macular ischemia. (asrs.org)
  • Damaged artery cells respond to the injury leading to a defective repair, which in turn leads to media thickening, luminal blockage, ischemia , and ultimately end-organ damage. (rheumatologyadvisor.com)
Ciliary artery3
  • In dogs, it is the continuation of the long ciliary artery. (wikipedia.org)
  • Anatomical variants include cilioretinal branches from the short posterior ciliary artery, giving additional supply to part of the macular retina. (medscape.com)
  • Typical funduscopic findings of a pale retina with a cherry red macula (ie, the cherry red spot) result from obstruction of blood flow to the retina from the retinal artery, causing pallor, and continued supply of blood to the choroid from the ciliary artery, resulting in a bright red coloration at the thinnest part of the retina (ie, macula). (medscape.com)
Retina19
  • The central retinal artery pierces the eyeball close to the optic nerve, sending branches over the internal surface of the retina, and these terminal branches are the only blood supply to the larger part of it. (wikipedia.org)
  • The central part of the retina where the light rays are focused after passing through the pupil and the lens is a circular area called the macula. (wikipedia.org)
  • In some cases - approximately 20% of the population - there is a branch of the ciliary circulation called the cilio-retinal artery which supplies the retina between the macula and the optic nerve, including the nerve fibers from the foveal photoreceptors. (wikipedia.org)
  • The entire retina (with the exception of the fovea) becomes pale and swollen and opaque while the central fovea still appears reddish (this is because the choroid color shows through). (wikipedia.org)
  • Blood supply to the retina originates from the ophthalmic artery, the first intracranial branch of the internal carotid artery that supplies the eye via the central retinal and the ciliary arteries. (medscape.com)
  • The central retinal artery supplies the retina as it branches into smaller segments upon leaving the optic disc. (medscape.com)
  • The central retinal artery supplies the blood to the retina. (kembara.co)
  • It is an occlusion of the main blood vessel (central retinal artery) supplying the retina. (neoretina.com)
  • A dilated retinal examination is done where a characteristic cherry red spot is noted in the central part of the retina. (neoretina.com)
  • An artery in the retina (the transparent, light-sensitive structure at the back of the eye) may become blocked, causing sudden, painless loss of vision. (msdmanuals.com)
  • Blockage of the central retinal artery may also cause growth of abnormal blood vessels on the retina or iris. (msdmanuals.com)
  • If the central retinal artery is blocked, the retina may appear pale. (msdmanuals.com)
  • The central retinal artery, a branch of the ophthalmic artery, enters the eye through the optic disc and divides into multiple branches to perfuse the inner layers of the retina. (medscape.com)
  • A branch retinal artery occlusion (BRAO) occurs when one of these branches of the arterial supply to the retina becomes occluded. (medscape.com)
  • The incidence of increased hyperreflectivity of the inner retina, central macular thickness (CMT) and arteriovenous transit time in patients with and without cherry-red spots were compared. (bvsalud.org)
  • The retina and brain share similar microvascular anatomy, and while direct visualisation of CBF is difficult, retinal imaging is comparatively convenient [ 14 ]. (springeropen.com)
  • The choroid is a vascular network providing the bulk of the oxygen and nutrient supply to the retina and may play a pivotal role in retinal disease pathogenesis. (arvojournals.org)
  • This article describes the method to make a do it yourself smartphone-based fundus camera which can image the central retina as well as the peripheral retina up to the pars plana. (ijo.in)
  • F) Optomap displaying multiple patchy whitenings from the external retina and yellowish pigmentary adjustments at the amount of the retinal pigment epithelium (RPE) over the Rabbit Polyclonal to ADRB1 fundus. (cancerhugs.com)
Internal caroti4
  • In these cases, hypervascularized tumors are often fed by internal carotid artery branches, such as the OPH. (ajnr.org)
  • Ophthalmic artery is a branch of the internal carotid artery. (kembara.co)
  • The arterial supply to the orbit derives its origin from the internal carotid artery (ICA). (medscape.com)
  • In addition to supplying the anterior part of the brain, eye, and adnexa, the internal carotid artery (ICA) sends branches to the forehead and the nose. (medscape.com)
Ophthalmic or central retina2
  • It is a form of vasculitis affecting the ophthalmic or central retinal artery which leads to reduced blood flow. (kembara.co)
  • Inadvertent occlusion of the ophthalmic or central retinal artery during external carotid artery embolization has been reported in 4 cases, 2 - 4 with immediate loss of vision. (jamanetwork.com)
BRAO4
External caroti4
  • 2 , 11 , 12 The blood supply of meningiomas usually arises from branches of the external carotid artery, except in cases of anterior and middle skull base tumors. (ajnr.org)
  • This is almost invariably due to giant cell arteritis (GCA), which is a primary vasculitis that affects extracranial medium (especially external carotid artery-ECA-branches) and sometimes large arteries (aorta and its major branches)-large-vessel GCA [ 3 , 4 ]. (intechopen.com)
  • This bifurcation leads to the external carotid artery and the ICA. (medscape.com)
  • The external carotid artery is an important vessel because of its blood supply to the orbit, dura, and cranial nerves. (medscape.com)
Patients with retinal emboli3
  • In a study of 70 patients with retinal emboli, 40 were found to have cholesterol emboli, 8 platelet-fibrin emboli, 6 calcific emboli, and 1 possible myxomatous embolus. (medscape.com)
  • [ 15 ] A10-fold increase in the annual rate of stroke in patients with retinal emboli compared with controls after a follow-up period of 3.4 years was demonstrated in another study. (medscape.com)
  • A case series reported that 15% of patients with retinal emboli died within 1 year, and a mortality rate of 54% was shown within 7 years. (medscape.com)
Branch5
Acute5
  • One study found that acute coronary syndrome occurred 1.72 times more often in patients with retinal artery occlusion than in controls. (medscape.com)
  • Retinal tears are usually produced by an acute PVD due to excess vitreoretinal traction at sites of significant vitreoretinal adhesions. (aao.org)
  • RESULTS: A 66-year-old man presented with acute vision loss of the left eye. (bvsalud.org)
  • Retinal microcirculation can be directly imaged by optical coherence tomography angiography (OCTA) during perfusion-deficit states such as sepsis, and other systemic haemodynamic disturbances such as acute coronary syndrome, and systemic inflammatory conditions such as inflammatory bowel disease. (springeropen.com)
  • The central nervous system and the cardiovascular system are most sensitive to acute sodium azide poisoning. (cdc.gov)
Branches12
  • The central retinal artery (retinal artery) branches off the ophthalmic artery, running inferior to the optic nerve within its dural sheath to the eyeball. (wikipedia.org)
  • The fovea and a small area surrounding it are not supplied by the central retinal artery or its branches, but instead by the choroid. (wikipedia.org)
  • Ocular stroke commonly is caused by embolism of the retinal artery, although emboli may travel to distal branches of the retinal artery, causing loss of only a section of the visual field. (medscape.com)
  • Blockage may occur in the main artery or in its branches. (msdmanuals.com)
  • Giant cell arteritis (GCA), also known as temporal arteritis, is a granulomatous vasculitis that mostly affects large- and medium-sized arteries, particularly the branches of the proximal aorta. (rheumatologyadvisor.com)
  • Fluorescein angiography (FA) uncovered delayed filling from the choroidal watershed area and CA which persisted through the entire early phase, concurrently with normal filling up of arterial branches through the central retinal artery (Fig. 1C). (cancerhugs.com)
  • The artery then proceeds forward horizontally, beneath the lower border of the superior oblique muscle, and divides into 2 terminal branches, frontal and dorsal nasal. (medscape.com)
  • Most branches of the ophthalmic artery arise in the posterior one third of the orbit and pass anteriorly. (medscape.com)
  • As outlined below, the branches of the ophthalmic artery are divided into an orbital group, distributing vessels to the orbit and surrounding parts, and an ocular group, distributing vessels to the muscles and bulb of the eye. (medscape.com)
  • One of the largest branches derived from the ophthalmic artery, the lacrimal artery (arteria lacrimalis) arises close to the optic foramen and, not infrequently, is given off before the ophthalmic artery enters the orbit. (medscape.com)
  • The superior and inferior lateral palpebral arteries, which are terminal branches of the lacrimal artery, irrigate the upper and lower eyelids, respectively, and the conjunctiva. (medscape.com)
  • The muscular branches of the lacrimal artery supply the superior and lateral recti muscles. (medscape.com)
Middle mening2
  • The ICA provides collateralization with the middle meningeal artery and lacrimal and ethmoidal anastomoses. (medscape.com)
  • The ophthalmic artery rarely arises from the middle meningeal artery. (medscape.com)
Arterial4
  • Multiple studies have shown increased mortality in patients with retinal arterial emboli. (medscape.com)
  • Knowledge of the individual arterial anatomy may aid the injector in avoiding injecting into an artery and thus to prevent blindness. (artery3d.com)
  • Visualizing the complex arterial network of the face through augmented reality may guide the injector by visualizing the exact location of each artery at risk during dermal filler injections. (artery3d.com)
  • These vessels run medially and anastomose with the medial palpebral arteries, forming an arterial circle. (medscape.com)
Examination10
  • Fundoscopy examination may reveal pale retinal with a cherry red spot. (kembara.co)
  • Funduscopic examination shows retinal whitening along the distribution of the affected artery. (medscape.com)
  • A complete eye examination revealed that he had a central retinal artery occlusion. (bvsalud.org)
  • On examination she has a left sided homonymous hemianopia, with some macular sparing. (fellowshipexam.com)
  • On examination you note erythema around his left eye and a fixed semi-dilated pupil. (kfpbank.com.au)
  • On examination you note a red blistering rash along the left trigeminal nerve distribution, the rash is also visible on the tip of her nose. (kfpbank.com.au)
  • The examination of the left eye was normal. (retinavitreousjournal.com)
  • HbA1c level, best corrected visual acuity, intraocular pressure (IOP), central corneal thickness (CCT), tear break-up time (BUT), Schirmer test, dilated fundus examination findings, central retinal thickness (CRT), and total macular volume (TMV) measurements were noted. (ijo.in)
  • On examination, the pulse was 86/min regular, all the pulses were intact and the temporal arteries had a granularfeel on palpation. (org.pk)
  • visual field examination: right eye has no light perception and the left has temporal visual field defect. (mrcophth.com)
Cherry red spot1
Carotid6
  • They usually are associated with mural thrombus in the carotid artery or cardiac valvular structures. (medscape.com)
  • They are associated with calcified cardiac valves and atheromatous plaques of the carotid artery. (medscape.com)
  • Auscultation of the heart and carotid arteries and comparison of ophthalmodynamometry may help identify the source of emboli. (medscape.com)
  • Central retinal artery occlusion: A rare complication of carotid artery stenting. (manipal.edu)
  • There are reports on various other risks like rhinoliquorrhea, brain damage, fistulas between sinus-cavernosus and carotid artery, aneurysms and thrombosis of the cavernous sinus. (egms.de)
  • Carotid artery occlusion: asked to listen for carotid bruit and feel the pulse for any irregularity. (mrcophth.com)
Giant cell arte2
Bifurcation2
  • Any of the arteries that arise from a bifurcation of the aorta supplying the pelvic or abdomen. (mcw.edu)
  • The site of obstruction most often is at the bifurcation of the arteries where emboli are most likely to become lodged. (medscape.com)
Vessels6
  • Inflammation or obstruction of the blood vessels leading to the eye can also result in abnormal tissue or clot being transmitted to central retinal artery causing its occlusion. (neoretina.com)
  • an inflammation of the blood vessels, is also a possible cause of retinal artery blockage. (msdmanuals.com)
  • In 90% of cases, BRAOs involve the temporal retinal vessels. (medscape.com)
  • Whether the temporal retinal vessels are affected more often or whether the nasal retinal vessel occlusions are more often undetected is unclear. (medscape.com)
  • Optical coherence tomography angiography (OCT-A) was used to record the macular retinal thickness and density of shallow and deep vessels. (bvsalud.org)
  • There may be a scleral aperture, but there are no retinal vessels. (molvis.org)
Embolization4
Emboli3
  • Patients with visualized retinal artery emboli, whether or not obstruction is present, have 56% mortality over 9 years, compared with 27% for an age-matched population without retinal artery emboli. (medscape.com)
  • Regarding mortality, 1 study found a 3-fold higher risk for 8-year mortality from stroke in patients with documented retinal emboli at baseline compared with patients without emboli. (medscape.com)
  • Patients with visualized retinal artery emboli, whether or not obstruction is present, have 56% mortality over 9 years, compared to 27% for an age-matched population without retinal artery emboli. (medscape.com)
Fundus3
  • Fundus photograph of left eye with Stargardt's Disease. (asrs.org)
  • Fundus photograph of a central retinal artery occlusion in the left eye. (asrs.org)
  • Intensive retinal pigment epithelium (RPE) ischemic adjustments across the whole fundus along with resultant SRD, and multiple wedge-shaped choroidal filling up defects recommended a disruption in choroidal blood flow, particularly in the PCA. (cancerhugs.com)
Choroid3
  • The ciliary arteries supply the choroid and the anterior portion of the globe via the rectus muscles (each rectus muscle has 2 ciliary arteries except the lateral rectus, which has 1). (medscape.com)
  • While the central retinal artery provides the inner retina's blood supply, most of its oxygen demand is supplied by diffusion from the underlying choroid (which is the sole supply of the avascular fovea), which is in turn supplied by the ciliary arteries. (arvojournals.org)
  • 6 Sandwiched between the retinal pigment epithelium (RPE) and the sclera, the choroid is approximately 0.22- to 0.3-mm thick at the posterior pole, thinning anteriorly. (arvojournals.org)
Inferior1
  • Drenaje venoso anómalo del pulmón derecho en la vena cava inferior, con hipoplasia del pulmón derecho. (bvsalud.org)
Thickness7
  • Retinal holes are full-thickness retinal defects that are typically not associated with persistent vitreoretinal traction in their vicinity. (aao.org)
  • There was also a significant difference in retinal thickness of the central macular sulcus (328.00 (304.50-332.25) Vs. 352.50 (311.75-420.50), P = 0.01). (bvsalud.org)
  • Middle aged woman with a full thickness macular hole in the left eye associated with an epiretinal membrane. (asrs.org)
  • 65 year old woman with a recurrent full thickness macular hole following previous 20 g pars plana vitrectomy in the right eye as well as an iatrogenic retinal hole in the papillomacular bundle. (asrs.org)
  • However, the association between retinal nerve fiber layer (RNFL) thickness and the incidence of CVD events remains inconclusive, and relevant longitudinal studies are lacking. (biomedcentral.com)
  • RNFL thinning was independently associated with increased incident cardiovascular risk and improved reclassification capability, indicating RNFL thickness derived from the non-invasive OCT as a potential retinal fingerprint for CVD event across ethnicities and health conditions. (biomedcentral.com)
  • Using OCT, alterations of retinal nerve fiber layer (RNFL) thickness have been implicated in cardiovascular health, generating new insights into the role of retinal fingerprints in the prediction of CVD. (biomedcentral.com)
Incidence1
Blockage1
Visual acuity2
Hyaloid artery1
  • The central retinal artery is formed from the proximal part of the hyaloid artery after atrophy of its distal part has formed the hyaloid canal. (wikipedia.org)
Ocular3
  • In emergency scenario, the immediate management may include ocular massage, reducing intra ocular pressure by removing fluid from the anterior chamber and inhaling carbogen or sublingual isosorbide dinitrate to dilate the artery. (kembara.co)
  • Several studies have shown that retinal blood flow is autoregulated in response to experimental changes in ocular perfusion pressure (OPP). (arvojournals.org)
  • From an ocular standpoint, and in the absence of subsequent retinal artery occlusions, vision usually stabilizes soon after the ischemic event. (medscape.com)
Defects2
  • Visual field defects may be central or sectoral. (medscape.com)
  • Both retinal defects are captured here in this Zeiss Stratus OCT image. (asrs.org)
Macular Degeneration1
  • While choroidal changes are associated with retinal diseases, such as age-related macular degeneration 3 and diabetic retinopathy, 4 , 5 the limited ability to characterize choroidal flow leaves its role in pathogenesis and progression unclear. (arvojournals.org)
Large arteries1
  • Atherosclerosis Atherosclerosis is a condition in which patchy deposits of fatty material (atheromas or atherosclerotic plaques) develop in the walls of medium-sized and large arteries, leading to reduced or. (msdmanuals.com)
Dorsal nasal2
  • and dorsal nasal [DN] arteries) of 20 volunteers was studied by a 3-Tesla MRI, combining infrared (IR) facial warming and 3-dimensional time-of-flight multiple overlapping thin slab acquisition MRA. (artery3d.com)
  • The periorbital arteries (Supraorbital, Supratrochlear and Dorsal nasal) may vary significantly between individuals, but also between the left and right side of the face. (artery3d.com)
Blood12
  • The central retinal artery supplies blood to all the nerve fibers that form the optic nerve, which carries the visual information to the lateral geniculate nucleus of the thalamus, including those that reach over the fovea. (wikipedia.org)
  • The pale retinal is due to the lack of perfusion with blood. (kembara.co)
  • This artery can become completely blocked by an embolism or thrombosis (formation of a blood clot in the artery). (msdmanuals.com)
  • They usually do not cause occlusion of the artery by themselves because blood can flow around them. (medscape.com)
  • In contrast, elevated blood alcohol left peak systolic velocity, end-diastolic velocity and the resistance index constant in three retrobulbar arteries (ophthalmic, central retinal and posterior ciliary). (lvhn.org)
  • Parallel mechanisms autoregulate retinal and cerebral microcirculation to maintain blood flow to meet metabolic demands across a range of perfusion pressures. (springeropen.com)
  • Monitoring microcirculatory flow offers the potential to enhance monitoring in the care of critically ill patients, and imaging retinal blood flow during critical illness offers a potential biomarker for cerebral microcirculatory perfusion. (springeropen.com)
  • This review discusses the relationship between cerebral and retinal blood flow, and the relevance of that relationship to systemic pathology and monitoring microcirculatory perfusion in critical illness, focussing more on sepsis. (springeropen.com)
  • Retinal blood flow from the CA also were affected, indicated by dilatation and staining from the CA. We speculate how the buy 184025-18-1 extended compression of the world during brain operation may have performed a significant function in leading to occlusion from the CA and PCA. (cancerhugs.com)
  • The ophthalmic artery (arteria ophthalmica) is the major blood supply of the orbit. (medscape.com)
  • Any intracardiac communication that allows high pulmonary blood flow will lead, over time, to irreversible pulmonary vascular injury, increased pulmonary artery pressures and, ultimately, to right-to-left intracardiac blood flow. (medscape.com)
  • The next phases of fluorescein angiography showed the blood flow in the affected artery. (who.int)
Occur3
  • Dialyses are circumferential retinal breaks that occur at the ora serrata. (aao.org)
  • Vision loss may occur due to retinal hemorrhaging, macular edema, dilated retinal veins, or cotton-wool spots. (pateleyeassociates.com)
  • The findings confirm "that RPD most frequently occur in the upper-outer macular subfield, and, contrary to previous reports, occur within the central subfield, although less frequently," the researchers write. (medscape.com)
Optical coherence tomography a1
  • While optical coherence tomography angiography provides an en face depiction of the choroidal vasculature, it does not reveal flow dynamics. (arvojournals.org)
Biopsy2
  • the test includes temporal artery biopsy and treatment with high dose of steroids. (kembara.co)
  • The diagnosis of GCA requires age more than 50 years at disease onset, new headache in the temporal area, temporal artery tenderness, and/or reduced pulse, jaw claudication, systemic symptoms, erythrocyte sedimentation rate (ESR) exceeding 50 mm/hr, and typical histologic findings (granulomatous involvement) in temporal artery biopsy (TAB) [ 5 ]. (intechopen.com)
Embolus1
Obstruction1
Temporal arteries1
Polyvinyl alcohol1
  • We report a case in which stepwise decline of vision related to progressive swelling of polyvinyl alcohol (PVA) particles lodged in retinal arterioles occurred throughout a period of 8 days. (jamanetwork.com)
Vasculitis1
  • 3 Immunohistochemical studies of an animal model with retinal vasculitis disclosed immune complex deposition within the vessel walls, which ultimately caused vaso-occlusion in the eye. (bmj.com)
Veins1
Blindness3
  • Approximately 40-50% of patients with GCA have ophthalmologic complications, including visual loss secondary to A-AION, central retinal artery occlusion, homonymous hemianopsia or cortical blindness (uni- or bilateral occipital infarction) [ 6 ]. (intechopen.com)
  • Necrosis of eye-lids by infections and blindness by central artery occlusion are known. (egms.de)
  • Three weeks later, he developed choreiform movements on the right side as well, followed by complete blindness in the left eye. (org.pk)
Coronary2
  • If a broken catheter tip can not be retrieved from the coronary artery, 'fix' it! (manipal.edu)
  • Single Coronary Artery from Right Sinus of Valsalva: A Single Center Experience of Seven Cases. (manipal.edu)
Irreversible1
  • Over time, any communication that allows a left-to-right shunt causes increased pulmonary vascular flow and, eventually, irreversible vascular injury. (medscape.com)
Lateral2
  • Patients' CDU examinations were then examined by an experience dradiologist, and peaksys to lic flow velocity (PSFV) and end-diastolic flow velocity (EDFV) of the ophthalmicartery (OA), central retinal artery (CRA), and lateral (temporal) posterior ciliary arteries (LPCA) in the right or left eye were detected. (journal-jtpm.com)
  • This artery runs along the lateral wall of the orbit, accompanying the lacrimal nerve along the upper border of the lateral rectus muscle, and supplies the lacrimal gland. (medscape.com)
Pigment epithelial1
Optic nerve2
  • As the artery crosses the optic nerve, it is accompanied by the nasociliary nerve and is separated from the frontal nerve by the superior rectus muscle and the superior levator palpebral muscle. (medscape.com)
  • In addition, a novel retinal lesion in Ebola survivors that appears to follow ganglion cell axons as they exit the optic nerve has been described ( 11 ). (cdc.gov)
Disorders1
  • EVD survivors may have ongoing central and peripheral nervous system disorders, including previously unrecognized migraine headaches and stroke. (cdc.gov)
Vitreous1
  • This is due to a combination of retinal breaks, vitreous changes inducing a retinal break and vitreoretinal traction, and intraocular fluid currents. (aao.org)
Painless4