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Teleopsia
Teleopsia is a vision perception disorder, in which objects appear much farther away than they are. Teleopsia is a disorder associated with dysmetropsia. See also *Pelopsia Pelopsia is a vision perception disorder in which objects appear nearer than they actually are. Pelopsia can be caused by psychoneurotic phenomena, changes in atmospheric clarity, or sometimes by wearing a corrective lens A corrective lens is ... References Eye diseases {{eye-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dysmetropsia
Alice in Wonderland syndrome (AIWS), also known as Todd's syndrome or dysmetropsia, is a neuropsychological condition that causes a distortion of perception. People may experience distortions in visual perception of objects, such as appearing smaller (micropsia) or larger ( macropsia), or appearing to be closer (pelopsia) or farther (teleopsia) than they actually are. Distortion may also occur for senses other than vision. The cause of Alice in Wonderland syndrome is currently unknown, but it has often been associated with migraines, head trauma, or viral encephalitis caused by Epstein–Barr virus infection. It is also theorized that it can be caused by abnormal amounts of electrical activity, resulting in abnormal blood flow in those parts of the brain which process visual perception and texture. Although there are cases of Alice in Wonderland syndrome in both adolescents and adults, it is most commonly seen in children. Classification Though not agreed upon in literature, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Visual Perception
Visual perception is the ability to interpret the surrounding environment through photopic vision (daytime vision), color vision, scotopic vision (night vision), and mesopic vision (twilight vision), using light in the visible spectrum reflected by objects in the environment. This is different from visual acuity, which refers to how clearly a person sees (for example "20/20 vision"). A person can have problems with visual perceptual processing even if they have 20/20 vision. The resulting perception is also known as vision, sight, or eyesight (adjectives ''visual'', ''optical'', and ''ocular'', respectively). The various physiological components involved in vision are referred to collectively as the visual system, and are the focus of much research in linguistics, psychology, cognitive science, neuroscience, and molecular biology, collectively referred to as vision science. Visual system In humans and a number of other mammals, light enters the eye through the corne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pelopsia
Pelopsia is a vision perception disorder in which objects appear nearer than they actually are. Pelopsia can be caused by psychoneurotic phenomena, changes in atmospheric clarity, or sometimes by wearing a corrective lens A corrective lens is a lens (i.e. a transmissive optical device) that is typically worn in front of the eye to improve daily vision. The most common use is to treat refractive errors: myopia, hypermetropia, astigmatism, and presbyopia. .... See also * Teleopsia * Vision deficiencies and disorders References Eye diseases {{eye-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
