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Does retinal veinal occlusion occur both eyes?
Retinal veinal occlusion can occur in both eyes. However, because it is such a rare disease, it is not common for it to happen in both eyes on the same person.
Retinal artery occlusion?
DefinitionRetinal artery occlusion is a blockage of the blood supply in the arteries to the retina -- the light-sensitive tissue in the back of the eye.Alternative NamesCentral retinal artery occlusion; Branch retinal artery occlusion; CRAO; BRAOCauses, incidence, and risk factorsRetinal arteries may become blocked by a blood clot or substances (such as fat or plaque) that get stuck in the arteries. These blockages may occur due to hardening of the arteries in the eye.Also, clots may travel from other parts of the body and block an artery in the retina. A common source of a clot would be from the carotid artery in the neck or from the heart lining.Most clots are caused by conditions such as:DiabetesDisease of the two large blood vessels in the neck (carotid artery disease)Disorder of high blood fats (hyperlipidemia)Heart rhythm problem (atrial fibrillation)High blood pressureIf a branch of the retinal artery is blocked, part of the artery will not have enough blood and oxygen. If this happens, you may lose part of your vision.Retinal artery blockage or occlusions may last from only a few seconds to a few minutes. They also may cause permanent vision loss. The amount of vision loss is partly related to the location of the blockage.People with retinal arterial occlusion, whether it is temporary or permanent, have a risk of stroke because clots may also move to the brain.Retinal vessel occlusion more often affects older people. Risk factors are related to the disorders that cause the blockage.SymptomsSudden blurring or loss of vision in all or part of one eyeSigns and testsTests to evaluate the retina may include:Color visionExamination of the retina after the pupil is dilatedFluorescein angiographyIntraocular pressurePupil reflex responseRefraction testRetinal photographySlit lamp examinationTesting of side vision (visual field examination)Test that measures the electrical activity of the retina (electroretinogram)Visual acuityTests to identify the source of a clot from another part of the body:EchocardiogramHeart monitor for abnormal heart rhythmUltrasound or Doppler ultrasound of the carotid arteriesOther tests may include:Blood pressureCholesterol and triglyceride levelsComplete physical examTreatmentBreathing in (inhaling) a carbon dioxide-oxygen mixture has been used to treat blockages in the arteries. This treatment causes the arteries of the retina to widen (dilate). It may allow the clot to move down the artery and sometimes break up, which reduces the area of the retina that is affected.The health care provider should look for the cause of the blockage. Blockages may be signs of a life-threatening medical problem. Patients with retinal artery occlusions should be screened for:Cranial arteritisCarotid artery blockageHeart rhythm disturbancesHeart valve diseaseHigh blood pressureThe use of the clot-busting drug, tissue plasminogen activator (tPA), within a few hours of retinal artery occlusion may be helpful.Expectations (prognosis)People with blockages of the retinal artery may not get their vision back.ComplicationsPartial or complete loss of vision in the affected eyeSimilar problem occurring again in the same or the other eyeStrokeCalling your health care providerCall your health care provider if you have sudden blurring or vision loss.PreventionMeasures used to prevent other blood vessel (vascular) diseases, such as coronary artery disease, may decrease the risk of retinal artery occlusion. These include:Eating a low-fat dietExercisingStopping smokingLosing weight if you are overweightAspirin is commonly used to prevent the artery from becoming blocked again.ReferencesVortmann M, Schneider JI. Acute monocular visual loss. Emerg Med Clin North Am. 2008;26:73-96.Pokhrel PK, Loftus SA. Ocular emergencies. Am Fam Physician. 2007;76:829-836.
What does the common celiac trunk branch into?
Gastric Artery - esophageal branch and hepatic Common Hepatic Artery - Proper hepatic artery, Right Gastric artery and Gastroduodenal artery Splenic Artery - Dorsal pancreatic, short gastric and Left Gastro-omental
What are some of the symptoms of coronary artery disease that I should watch out for?
Fatigue and nausea are among the most common. As well as low energy levels and a shortness of breath that comes about very quickly. Angina can also be a common symptom.
Is vomiting a symptom of lyme disease?
It is a common symptom of Lyme's disease. But is also a common symptom of many, many things.
What is the common pulse artery in the forearm?
The radial artery
Does the common femoral vein lie medial or lateral to the common femoral artery?
The common femoral vein is medial to the common femoral artery. The common femoral artery lies farther from the body's midline.
What is the most common symptom of a cystocele?
Urinary incontinence is the most common symptom of a cystocele
What are the three blood vessels that exit from the aortic arch?
Brachiocephalic trunk Left common carotid artery Left subclavian artery
What are the common foot pulse locations?
the common foot pulse locations are as follows, the posterior tibial artery and the dorsalis pedia artery (or pedal artery)
What is a common symptom?
pain
What artery branches off left brachiocephalic artery?
The brachiocephalic artery divides into the right common carotid artery and the right subclavian artery.
