view more Credit: Boston Children’s Hospital For more than two decades, researchers have tried to regenerate the injured optic nerve using different growth factors and/or agents that overcome natural growth inhibition. But at best, these approaches get only about 1 percent of the injured nerve fibers to regenerate and reconnect to the brain; most of the cells eventually die. Researchers at Boston Children’s Hospital now show that a completely new approach — chelating zinc that is released as a result of the injury — gets cells to live longer, perhaps indefinitely, with dramatic levels of axon regeneration in a mouse model. If proven to work similarly well in humans, such treatment could greatly benefit patients with optic nerve injury, glaucoma, and perhaps other types of nerve fiber (axon) injury within the central nervous system, such as spinal cord injury. Zinc chelators already exist and could potentially be given either systemically or through injection into the eye, the researchers say. Their findings were published online by the Proceedings of the National Academy of Sciences during the week of January 2. The optic nerve, which carries visual information from the eye to brain, is made up of axons projecting from neurons known as retinal ganglion cells. Normally, when the optic nerve is damaged, these cells die, but what actually kills them hasn’t been known. “At least 200 studies, including some done here, have tried to understand what makes these cells die,” says Larry Benowitz, PhD, of the F.M. Kirby Neurobiology Center and Department of Neurosurgery at Boston Children’s Hospital, co-senior author on the paper. “And even if the cells survive, they usually cannot regrow their connections.” Paul Rosenberg, MD, PhD, co-senior author and of the Kirby Center and Department of Neurology, had been studying the role of zinc in cell death.http://advisingeyesurgeon.beatthetrain.org/2016/12/05/the-top-information-on-choosing-critical-criteria-of-eye-bags/
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It may also vary according to the part of the nerve which is damaged, and how much it is damaged. This was all about glaucoma, and especially about the treatment. Eye duct blockage developed in the eye’s lubricating glands causes this condition. Eye herpes or optic neuritis can cause inflammation of eyes, leading to blurry vision. Besides swollen eyelids, a person will also experience excessive tearing, reddening of the eyes, blisters on the eyelids and other parts of the face, sensitivity to light, etc. Causes of Blurred Vision in One Eye Blurred vision results when the path of light between cornea and retina gets disturbed due to some reason. When these are targeted by adrenergic substances such as epinephrine or nor epinephrine, certain physiologic responses take place. Prednisone Withdrawal Symptoms Prolonged use of prednisone can affect the body’s ability to produce natural corticosteroids, thereby increasing the likelihood of drug dependence. If you rub your eyes with your contact lenses on, you could develop abrasions or red spots.
The saddest part is that glaucoma usually attacks without major symptoms, and gradually steals away one’s vision. Following are some of them. Side Effects of Prednisone in Dogs Administration of prednisone can make your dog feel excessively thirsty. The aim of the treatment is to reduce the intra ocular pressure, and lower the chances of further complications and eye damage. When this is above 21 mm Hg, it is considered to be high eye pressure and when it is below 12 mm Hg, it is called low eye pressure. Take care! Simple cardiovascular exercises like walking, jogging, and running can help regulate the pressure. Almost All People With Diabetes Show Signs Of Retinal Damage After About 20 Years Of Living With The Condition. | Good Christian SimmonsLet us study about this condition in greater detail from the following write up. There are a few contagious eye diseases that may lead to a mild, or to a severe infection. Taking biotic drugs used for glaucoma treatment, may also cause constriction of pupils. A dog with red or inflamed eyes with debris stuck in the corner of the eye, indicate the need of eye drops.