define optic atrophy
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- What Is Optic Atrophy? The optic nerve is a bundle of nerve fibers that carry images from your retina to your brain. Each fiber carries a part of the visual information to the brain. If these nerve fibers become damaged, the brain doesn't receive all of this vision information and sight becomes blurred. Optic atrophy means the loss of some or most of the nerve fibers in the optic nerve. The effects range from visual change to severe visual loss.
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atrophy atrophy. A wasting, shrinking or degeneration of an organ or tissue due to malnutrition, poor blood circulation, loss of nerve supply, disuse, disease or hormonal changes. choroidal atrophy A group of ocular degenerations of the choroid.isuse atrophy atrophy of a tissue or organ as a result of inactivity or diminished function. gyrate atrophy of choroid and retina a rare hereditary, slowly progressive atrophy of the choroid and pigment epithelium of the retina; inherited as an autosomal recessive trait.
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Definitions &Translations Here are all the possible meanings and translations of the word optic atrophy, hereditary, leber. U.S. National Library of Medicine(0.00 / 0 votes)Rate this definition: Optic Atrophy, Hereditary, Leber. A maternally linked genetic disorder that presents in mid-life as acute or subacute central vision loss leading to central scotoma and blindness.
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Cerebral atrophy Atrophy of any tissue means a decrement in the size of the cell, which can be due to progressive loss of cytoplasmic proteins.In brain tissue, atrophy describes a loss of neurons and the connections between them.Atrophy can be generalized, which means that all of the brain has shrunk; or it can be focal, affecting only a limited area of the brain and resulting in a decrease of the functions that area of the brain controls.erebral atrophy is a common feature of many of the diseases that affect the brain.
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- Spinal muscular atrophy (SMA) in order to distinguish it from other conditions with similar names, is a rare neuromuscular disorder characterised by loss of motor neurons and progressive muscle wasting, often leading to early death.
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- Full Definition of ATROPHY. 1. : decrease in size or wasting away of a body part or tissue; also: arrested development or loss of a part or organ incidental to the normal development or life of an animal or plant. 2.— atro·phic \(ˌ)ā-ˈtrō-fik\ adjective.— atrophy \ˈa-trə-fē, -ˌfī\ verb.. : decrease in size or wasting away of a body part or tissue; also: arrested development or loss of a part or organ incidental to the normal development or life of an animal or plant. 2.
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Glaucoma Glaucoma is a group of common eye diseases which impair the eye’s optic nerve and may lead to vision loss or blindness. This degenerative condition is usually associated with a buildup of fluid in the eye (intraocular pressure), obstructing the optic nerve’s ability to transmit images to the brain.
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atrophy Definition of atrophy. plural. atrophies. 1 : decrease in size or wasting away of a body part or tissue atrophy of muscles; also : arrested development or loss of a part or organ incidental to the normal development or life of an animal or plant. 2 : a wasting away or progressive decline It was not a solitude of atrophy, of negation, but of perpetual flowering.
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- Muscular atrophy refers to a decrease in size of muscles. Individual muscle fibers decrease in size, and there is a progressive loss of myofibrils. Disuse atrophy is a muscular atrophy that results from lack of muscle use.
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What Are the Causes of Brain Atrophy? Know the causes. Brain atrophy is shrinking of the brain caused by the loss of its cells, called neurons. Two types of brain atrophy can occur; generalized and focal. Generalized atrophy refers to neuron loss throughout the entire brain, and focal atrophy refers to neuron loss in a specific brain region.ormal aging causes atrophy of the brain. The aging brain shrinks by an average of 1.9 percent every 10 years. It begins in young adulthood, but becomes more prominent when individuals reach their sixties.
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Muscle atrophy Muscle atrophy. Muscle atrophy is defined as a decrease in the mass of the muscle; it can be a partial or complete wasting away of muscle, and is most commonly experienced when persons suffer temporary disabling circumstances such as being restricted in movement and/or confined to bed as when hospitalized. When a muscle atrophies, this leads to muscle weakness, since the ability to exert force is related to mass. Modern medicine's understanding of the quick onset of muscle atrophy is a major factor behind the p
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Vascular Applications Optic nerve damage is any kind of injury or damage to the optic nerve, including trauma, inflammation, disease or deterioration. Optic nerve damage is also called optic nerve atrophy or optic neuropathy.The optic nerve is the nerve that connects and transmits information between the eye and the brain.Optic nerve damage can lead to vision distortion, vision loss, and blindness.ptic nerve damage can result from: Compression of the optic nerve. Glaucoma, or high pressure within the eye. Infection. Inflammation. Interruption in blood circulation to the optic nerve. Malignancy (cancer). Trauma. The only way to detect optic nerve damage is through a comprehensive eye examination.
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Leber hereditary optic atrophy Theodor, German ophthalmologist, 1840-1917. amaurosis congenita of Leber - an autosomal recessive cone-rod abiotrophy causing blindness or severely reduced vision at birth. Leber hereditary optic atrophy - hereditary degeneration of the optic nerve and papillomacular bundle, resulting in rapid loss of central vision.
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Cerebral Atrophy Cerebral atrophy is a common feature of many of the diseases that affect the brain. Atrophy of any tissue means loss of cells. In brain tissue, atrophy describes a loss of neurons and the connections between them.trophy of any tissue means loss of cells. In brain tissue, atrophy describes a loss of neurons and the connections between them.
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Atrophic Holes The fellow eye of patients with phakic rhegmatogenous retinal detachment from atrophic holes of lattice degeneration without posterior vitreous detachment. Br J Ophthalmol. 2004 Nov. 88(11):1400-2.
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Anisometropia Anisometropia: The condition in which the two eyes have unequal refractive power. One eye may be myopic (nearsighted) and the other hyperopic (farsighted) or one eye may be markedly stronger than the other.
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atrophy 1. A wasting or decrease in size of a body organ, tissue, or part owing to disease, injury, or lack of use: muscular atrophy of a person affected with paralysis. 2. A wasting away, deterioration, or diminution: intellectual atrophy. v. at·ro·phied, at·ro·phy·ing, at·ro·phies. v. tr.
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SENILE MIOSIS a reduction in the size of a person's pupil in old age caused by muscle atrophy that control dilation of a pupil. This restricts the amount of light to fall on retina. SENILE MIOSIS: Senile meiosis is seen in older people with atrophy of the muscles that control the pupil.. No related posts.
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- Define Optic atrophy. Optic atrophy synonyms, Optic atrophy pronunciation, Optic atrophy translation, English dictionary definition of Optic atrophy. n. 1. An artificial waterway or artificially improved river used for travel, shipping, or irrigation. 2. Anatomy A tube, duct, or passageway. 3.
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- pres•by•o•pi•a. farsightedness due to ciliary muscle weakness and loss of elasticity in the crystalline lens, usu. associated with aging. presby- (comb. form of presbys présbys, old old) + -man ]. opia`pres•by′op (-ic ˈɒp) ɪk. adj
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What Is Optic Atrophy? Many diseases and disorders can lead to optic atrophy or damage to the optic nerve. Optic atrophy can occur in cases where the optic nerve did not develop properly. It may also result from inflammation of the optic nerve or from glaucoma when the pressure inside the eye remains too high.
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About SMA Spinal Muscular Atrophy (SMA) is the leading genetic killer of infants and young children. It is a terminal, degenerative disease that results in the loss of nerves in the spinal cord and the weakness of the muscles connected with those nerves. SMA impacts the ability to walk, stand, sit, eat, breathe and even swallow.
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Atrophy Atrophy is the general physiological process of reabsorption and breakdown of tissues, involving apoptosis.When it occurs as a result of disease or loss of trophic support due to other disease, it is termed pathological atrophy, although it can be a part of normal body development and homeostasis as well.stronauts in microgravity must exercise regularly to minimize atrophy of their limb muscles. There are many diseases and conditions which cause atrophy of muscle mass. For example diseases such as cancer and AIDS induce a body wasting syndrome called  cachexia , which is notable for the severe muscle atrophy seen.
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atrophy atrophies. 1  1 : decrease in size or wasting away of a body part or tissue atrophy of muscles; also : arrested development or loss of a part or organ incidental to the normal development or life of an animal or plant. 2  2 : a wasting away or progressive decline It was not a solitude of atrophy, of negation, but of perpetual flowering.
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Clinical Applications For Exam 3 Atrophy Muscular atrophy refers to a decrease in size of muscles. Individual muscle fibers decrease in size, and there is a progressive loss of myofibrils. Disuse atrophy is a muscular atrophy that results from lack of muscle use.
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- Know the causes. Brain atrophy is shrinking of the brain caused by the loss of its cells, called neurons. Two types of brain atrophy can occur; generalized and focal. Generalized atrophy refers to neuron loss throughout the entire brain, and focal atrophy refers to neuron loss in a specific brain region.rain atrophy is shrinking of the brain caused by the loss of its cells, called neurons.