英语词汇“visual defect”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

WORD FAMILY

visual defect: visual defects

USAGE EXAMPLES

“Children are born with unusual brain scans as well as microcephaly and hearing and visual defects.”

The Guardian(Mar 22, 2016)

Agriculture Secretary Tom Vilsack said the changes take into account current science, updating the inspection system from 1950s thinking that visual defects meant safety problems.

Washington Times(Aug 01, 2014)

Well, if you stepped back and asked what might be an effective therapy for visual defects, first-person shooter games have a lot of what’s needed.

New York Times(Aug 27, 2012)

n impairment of the sense of sight

Syn|Hypo|Hyper

vision defect, visual disorder, visual impairment

amaurosis

partial or total loss of sight without pathology of the eye; caused by disease of optic nerve or retina or brain

amblyopia

visual impairment without apparent organic pathology

ametropia

(ophthalmology) faulty refraction of light rays in the eye as in astigmatism or myopia

aniseikonia

visual defect in which the shape and size of an ocular image differ in the two eyes

anorthopia

distorted vision in which straight lines appear curved

aphakia

absence of the natural lens of the eye (usually resulting from the removal of cataracts)

blindness, cecity, sightlessness

the state of being blind or lacking sight

color blindness, color vision deficiency, colour blindness, colour vision deficiency

genetic inability to distinguish differences in hue

diplopia, double vision

visual impairment in which an object is seen as two objects

day blindness, hemeralopia

inability to see clearly in bright light

hemianopia, hemianopsia

blindness in one half of the visual field of one or both eyes

quadrantanopia

blindness in one fourth of the visual field

metamorphopsia

a defect of vision in which objects appear to be distorted; usually due to a defect in the retina

moon blindness, night blindness, nyctalopia

inability to see clearly in dim light; due to a deficiency of vitamin A or to a retinal disorder

photoretinitis

damage to the retina resulting from exposure of the eye to the sun without adequate protection

detached retina, detachment of the retina, retinal detachment

visual impairment resulting from the retina becoming separated from the choroid in the back of the eye; treated by photocoagulation

scotoma

an isolated area of diminished vision within the visual field

tunnel vision

visual impairment involving a loss of peripheral vision

xanthopsia

visual defect in which objects appear to have a yellowish hue; sometimes occurs in cases of jaundice

legal blindness

vision that is 20/200 or worse in both eyes (20/200 vision is the ability to see at 20 feet what a normal eye can see at 200 feet)

dichromacy, dichromasy, dichromatism, dichromatopsia, dichromia

a deficiency of color vision in which the person can match any given hue by mixing only two other wavelengths of light (as opposed to the three wavelengths needed by people with normal color vision)

monochromacy, monochromasy, monochromatic vision, monochromatism, monochromia

complete color blindness; colors can be differentiated only on the basis of brightness

myopia, nearsightedness, shortsightedness

(ophthalmology) eyesight abnormality resulting from the eye's faulty refractive ability; distant objects appear blurred

astigmatism, astigmia

(ophthalmology) impaired eyesight resulting usually from irregular conformation of the cornea; common in nearsighted people

anopia

sightlessness (especially because of a structural defect in or the absence of an eye)

farsightedness, hypermetropia, hypermetropy, hyperopia, longsightedness

abnormal condition in which vision for distant objects is better than for near objects

snow-blindness, snowblindness

temporary blindness caused by exposure to sunlight reflected from snow or ice

annular scotoma

a circular scotoma surrounding the center of the field of vision

central scotoma

a scotoma that involves the fixation point

hemianopic scotoma

a scotoma involving half of the visual field

paracentral scotoma

a scotoma that is adjacent to the fixation point

flittering scotoma, scintillating scotoma

a localized area of diminished vision edged by shimmering colored lights; in many people it indicates the onset of migraine

eyelessness

blindness due to loss of the eyes

figural blindness

inability to see shapes and contours

disability, disablement, handicap, impairment

the condition of being unable to perform as a consequence of physical or mental unfitness

单词	visual defect
释义	visual defect (once / 381269 pages) n WORD FAMILY visual defect: visual defects USAGE EXAMPLES “Children are born with unusual brain scans as well as microcephaly and hearing and visual defects.” The Guardian(Mar 22, 2016) Agriculture Secretary Tom Vilsack said the changes take into account current science, updating the inspection system from 1950s thinking that visual defects meant safety problems. Washington Times(Aug 01, 2014) Well, if you stepped back and asked what might be an effective therapy for visual defects, first-person shooter games have a lot of what’s needed. New York Times(Aug 27, 2012) n impairment of the sense of sight Syn\|Hypo\|Hyper vision defect, visual disorder, visual impairment amaurosis partial or total loss of sight without pathology of the eye; caused by disease of optic nerve or retina or brain amblyopia visual impairment without apparent organic pathology ametropia (ophthalmology) faulty refraction of light rays in the eye as in astigmatism or myopia aniseikonia visual defect in which the shape and size of an ocular image differ in the two eyes anorthopia distorted vision in which straight lines appear curved aphakia absence of the natural lens of the eye (usually resulting from the removal of cataracts) blindness, cecity, sightlessness the state of being blind or lacking sight color blindness, color vision deficiency, colour blindness, colour vision deficiency genetic inability to distinguish differences in hue diplopia, double vision visual impairment in which an object is seen as two objects day blindness, hemeralopia inability to see clearly in bright light hemianopia, hemianopsia blindness in one half of the visual field of one or both eyes quadrantanopia blindness in one fourth of the visual field metamorphopsia a defect of vision in which objects appear to be distorted; usually due to a defect in the retina moon blindness, night blindness, nyctalopia inability to see clearly in dim light; due to a deficiency of vitamin A or to a retinal disorder photoretinitis damage to the retina resulting from exposure of the eye to the sun without adequate protection detached retina, detachment of the retina, retinal detachment visual impairment resulting from the retina becoming separated from the choroid in the back of the eye; treated by photocoagulation scotoma an isolated area of diminished vision within the visual field tunnel vision visual impairment involving a loss of peripheral vision xanthopsia visual defect in which objects appear to have a yellowish hue; sometimes occurs in cases of jaundice legal blindness vision that is 20/200 or worse in both eyes (20/200 vision is the ability to see at 20 feet what a normal eye can see at 200 feet) dichromacy, dichromasy, dichromatism, dichromatopsia, dichromia a deficiency of color vision in which the person can match any given hue by mixing only two other wavelengths of light (as opposed to the three wavelengths needed by people with normal color vision) monochromacy, monochromasy, monochromatic vision, monochromatism, monochromia complete color blindness; colors can be differentiated only on the basis of brightness myopia, nearsightedness, shortsightedness (ophthalmology) eyesight abnormality resulting from the eye's faulty refractive ability; distant objects appear blurred astigmatism, astigmia (ophthalmology) impaired eyesight resulting usually from irregular conformation of the cornea; common in nearsighted people anopia sightlessness (especially because of a structural defect in or the absence of an eye) farsightedness, hypermetropia, hypermetropy, hyperopia, longsightedness abnormal condition in which vision for distant objects is better than for near objects snow-blindness, snowblindness temporary blindness caused by exposure to sunlight reflected from snow or ice annular scotoma a circular scotoma surrounding the center of the field of vision central scotoma a scotoma that involves the fixation point hemianopic scotoma a scotoma involving half of the visual field paracentral scotoma a scotoma that is adjacent to the fixation point flittering scotoma, scintillating scotoma a localized area of diminished vision edged by shimmering colored lights; in many people it indicates the onset of migraine eyelessness blindness due to loss of the eyes figural blindness inability to see shapes and contours disability, disablement, handicap, impairment the condition of being unable to perform as a consequence of physical or mental unfitness
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