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Causes Of Central Retinal Vein Occlusion
Not common: Bilateral CRVO is not common. Bilateral CRVO has been associated with hyperviscosity syndromes such as primary and secondary polycythemia, leukemia/lymphoma, multiple myeloma, and other rare conditions. Other risk factors include oral contraceptive use, diuretics, hypercoagulable states, and vasculitis. ...Read more
Anything that creates a blockage of the intestinal tract. You may think of the intestinal tract (stomach, small bowel, large bowel) as somewhat akin to a garden hose. If you kink the garden hose, or twist it, or block it inside, you have created an "obstruction". Most obstructions are a results of previous surgery and most of these ...Read more
Must disagree: This is a bandwagon that seems trendy, but the overwhelming evidence so far suggests that the blocks in the jugular and azygous veins draining into the neck, can be seen in normals as well as ms patients, and there is absolutely no backup congestion blood products found in the brain. This is a risky and absolutely unnecessary procedure, in spite of numerous advocates. No effect on ms. ...Read moreSee 1 more doctor answer
Eye vessel problem: Retinal vein which drains the blood out of the eye gets occluded. This causes blurryness of vision, sometimes loss of vision. It can come suddendly. Elevated blood pressure and patients with diabetes are some of the risk factors. New treatments are available to control some of the problems due to closure of blood vessels in the eye. ...Read moreSee 2 more doctor answers
Difficult to answer: If one distinguishes between anterior and posterior ischemic optic neuropathy this is easier to answer as the former is almost always caused by giant cell arteritis and treated with prednisone and the latter is due to systemic atherosclerosis. Acute central retinal artery occlusion may be caused by carotid occlusion or dissection or cardioembolic events. Treatment includes hyperbaric O2. ...Read moreSee 1 more doctor answer
Many possible causes: As we age, the vitreous may pull away from its attachment to the retina at the back of the eye. If the vitreous pulls hard enough to tear the retina in one or more places, fluid may pass through, lifting the retina off the back of the eye, causing it to detach. Some risk factors for detachment are: nearsightedness, trauma to the eye or a family history of retinal detachment. ...Read more
Can optic nerve head drusen cause sudden unilateral loss of peripheral vision due to a spontaneous vascular event?
See a retina special: Yes. Lack of blood flow due to a retinal artery occlusion can cause severe loss of vision from damage to the retina. A central retinal artery occlusion is worse than a branch retinal artery occlusion. There are no good treatments, but a systemic workup looking for an embolic source is required (carotid ultrasound, echocardiogram). A rarer cause is giant cell arteritis. ...Read moreSee 2 more doctor answers
Related issues: Optic neuropathy is a generic term referring to damage to the optic nerve from any cause including trauma, decreased blood flow, or genetic disease. Retinal artery occlusion is a blockage in the artery feeding the retina, which leads to damage or death of the retinal nervous tissue. A central retinal artery occlusion can cause an optic neuropathy. ...Read more
Problem in vision of right eye after diagnosis of pvd/ is that due to floaters or retinal tear now?
Morning glory disk anomaly with ipsilateral capillary hemangioma, agenesis of the internal carotid artery, and horner syndrome: a variant of phaces syndrome?
2 different things: There are many types of cataract. Posterior subcapsular cataract refers to cloudiness on the back part of the lens just under the capsule. This may be caused by injury, steroids, elevated blood sugar and aging. Ischemia of the optic nerve means that there is or was an episode of poor blood flow to the nerve which may result in vision loss. ...Read moreSee 1 more doctor answer
During posterior vitreous detachment, the vitreous separates from the macula first or peripheral retina or no preference?
Generally peripheral: Vitreous degeneration, the conversion of the vitreous gel into a dense syrup, usually starts peripherally and eventually involves the center including the macula. In most cases it is a benign and normal event but if adhesions exist, then the retinal can lift up and tear or become detached. ...Read more
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