what is nyctalopia
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Night Blindness: Causes Of Nyctalopia And Treatments Available Night blindness, also known as nyctalopia, is the inability to see clearly at night or in dim light (such as raining or dark room). Nyctalopia is not an eye disease or disorder. It is actually a symptom or indication of an underlying problem in which some may be serious.
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Hyperopia (Farsightedness) Hyperopia, or farsightedness, is a common vision problem, affecting about a fourth of the population. People with hyperopia can see distant objects very well, but have difficulty focusing on objects that are up close.
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Far-sightedness Far-sightedness, also known as long-sightedness and hyperopia, is a condition of the eye in which light is focused behind, instead of on, the retina. This causes close objects to be blurry, while far objects may appear normal. As the condition worsens, objects at all distances may be blurred.
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- Definition. Farsightedness (hyperopia) is a common vision condition in which you can see distant objects clearly, but objects nearby may be blurry. The degree of your farsightedness influences your focusing ability.eople with severe farsightedness may see clearly only objects a great distance away, while those with mild farsightedness may be able to clearly see objects that are closer. Farsightedness usually is present at birth and tends to run in families. You can easily correct this condition with eyeglasses or contact lenses.
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- Nearsightedness (myopia) is a common vision condition in which you can see objects near to you clearly, but objects farther away are blurry. Nearsightedness may develop gradually or rapidly, often worsening during childhood and adolescence.
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Definitions &Translations A dystopia is a community or society, usually fictional, that is in some important way undesirable or frightening. It is the opposite of a utopia. Such societies appear in many works of fiction, particularly in stories set in a speculative future.
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- Full Definition of MYOPIA. 1. : a condition in which the visual images come to a focus in front of the retina of the eye resulting especially in defective vision of distant objects.2. : a lack of foresight or discernment: a narrow view of something.— my·o·pic \-ˈō-pik, -ˈae-\ ˈä. adjective. : a condition in which the visual images come to a focus in front of the retina of the eye resulting especially in defective vision of distant objects. 2. : a lack of foresight or discernment: a narrow view of something.
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- Amblyopia (lazy eye) is the loss or lack of development of vision in an eye that is unrelated to any eye health problem. The brain, for some reason, does not acknowledge the images seen by the amblyopic eye.
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Toric Lens Implants Astigmatism is a refractive error where people are unable to see objects clearly from a distance or up close. Astigmatism is asymmetric steepening of the cornea or natural lens causes light to be focused unevenly. Astigmatism may occur in varying degrees in each eye and can accompany myopia or hyperopia.
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Pingelap: Island of the Colorblind Congenital Achromatopsia is an extremely rare hereditary vision disorder that affects 1 person out of 33,000 in the United States . Congenital Achromatopsia is sometimes referred to as stationary cone dystrophy because it is not progressive nor does it lead to blindness . Coping with light sensitivity is the most significant problem faced by Achromats.
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- Myopia: Nearsightedness, the ability to see close objects more clearly than distant objects. Myopia can be caused by a longer-than-normal eyeball or by any condition that prevents light rays from focusing on the retina.Most forms of myopia can be managed with corrective lenses.yopia: Nearsightedness, the ability to see close objects more clearly than distant objects. Myopia can be caused by a longer-than-normal eyeball or by any condition that prevents light rays from focusing on the retina. Most forms of myopia can be managed with corrective lenses.
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myopia Myopia is the medical term for nearsightedness. People with myopia see objects more clearly when they are close to the eye, while distant objects appear blurred or fuzzy. Reading and close-up work may be clear, but distance vision is blurry.
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myopia myopia. n. 1. (Pathology) inability to see distant objects clearly because the images are focused in front of the retina; short-sightedness. [C18: via New Latin from Greek muōps short-sighted, from mūein to close (the eyes), blink + ōps eye].mī-ō′pē-ə). myopia. top: normal eye with light focused on the retinabottom:myopic eye with light focused in front of the retina.
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Myopia |-!align=right |Lead Editors: |add |- !align=right |Contributing Editors: |add |-. |}. Myopia is a significant, prevalent disease in children with increasing rates of progression. With over 80 million reported myopic children world wide there are considerable socioeconomical and public health concerns. More over, High myopia is associated with potentially blinding complications such as glaucoma, retinal detachment, and myopic macular degeneration.
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Dystopia (February 2015). A dystopia (from the Greek δυσ- and τόπος, alternatively, cacotopia, kakotopia, or simply anti-utopia) is a community or society that is undesirable or frightening.topia is the blueprint for an ideal society with no crime or poverty. By contrast, dystopia is a nightmare world which, in many cases, has resulted from attempts to create an ideal society.
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Overview Farsightedness (hyperopia) is a common vision condition in which you can see distant objects clearly, but objects nearby may be blurry. The degree of your farsightedness influences your focusing ability. People with severe farsightedness may see clearly only objects a great distance away, while those with mild farsightedness may be able to clearly see objects that are closer. Farsightedness usually is present at birth and tends to run in families. You can easily correct this condition with eyeglasses or contact lenses.
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Common Vision Problems Hyperopia (Farsightedness) Farsightedness, or hyperopia, as it is medically termed, is a vision condition in which distant objects can be seen clearly, but close ones do not come into proper focus. Farsightedness occurs if your eyeball is too short or the cornea has too little curvature. In these cases, your eye can't correctly focus the light that enters it.
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- Amblyopia and Your Child's Eyes. Amblyopia, commonly called lazy eye, is a condition in children when vision does not develop properly, usually in one eye. If it’s left untreated, a child's vision will never develop correctly in the affected eye.
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- Nystagmus. Nystagmus is a vision condition in which the eyes make repetitive, uncontrolled movements, often resulting in reduced vision. These involuntary eye movements can occur from side to side, up and down, or in a circular pattern.
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amblyopia amblyopia am·bly·o·pi·a (ām'blē-ō'pē-ə) n. Dimness of vision, especially when occurring in one eye without apparent physical defect or disease.
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cornucopia The definition of a cornucopia is a cone-shaped container that is overflowing with food and flowers, or an abundance of something. An example of a cornucopia is the cone-shaped decoration often seen in Thanksgiving decorations. An example of a cornucopia is a huge amount of food for a small barbecue.
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Dystopia Dystopia. Dystopia is a form of literature that explores social and political structures. It is a creation of a nightmare world-unlike its opposite, Utopia, which is an ideal world.Dystopia is often characterized by an authoritarian or totalitarian form of government.It often features different kinds of repressive social control systems, a lack or total absence of individual freedoms and expressions, and a state of constant warfare or violence.ystopia is often characterized by an authoritarian or totalitarian form of government. It often features different kinds of repressive social control systems, a lack or total absence of individual freedoms and expressions, and a state of constant warfare or violence.
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Glossary of Eye Conditions Rare, inherited vision disorder in which a person has little or no ability to see color. People with achromatopsia also commonly experience some vision loss, especially in bright light, to which they are extremely sensitive. The severity of achromatopsia varies.mblyopia, which usually affects only one eye, is also known as lazy eye.. A person with amblyopia experiences blurred vision in the affected eye. However, children often do not complain of blurred vision in the amblyopic eye because this seems normal to them.
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Learning More About: Farsightedness Farsighted (also called hyperopia) is a term to describe an eye condition that lets you clearly see objects far or distant in your field of vision, while objects that are near appear blurry or hazy.
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Common Vision Problems Myopia (nearsightedness) is a vision condition in which close objects are seen clearly, but objects farther away appear blurred. Nearsightedness occurs if the eyeball is too long or the cornea, the clear front cover of the eye, has too much curvature.
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- Nearsightedness, or myopia, as it is medically termed, is a vision condition in which close objects are seen clearly, but objects farther away appear blurred. Nearsightedness occurs if the eyeball is too long or the cornea, the clear front cover of the eye, has too much curvature.