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Pronunciation (US): 

 Dictionary entry overview: What does vision defect mean? 

  The noun VISION DEFECT has 1 sense:

1. impairment of the sense of sight

  Familiarity information: VISION DEFECT used as a noun is very rare.

 Dictionary entry details 


Sense 1vision defect [BACK TO TOP]


Impairment of the sense of sight

Classified under:

Nouns denoting stable states of affairs


vision defect; visual defect; visual disorder; visual impairment

Hypernyms ("vision defect" is a kind of...):

disability; disablement; handicap; impairment (the condition of being unable to perform as a consequence of physical or mental unfitness)

Hyponyms (each of the following is a kind of "vision defect"):

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

tunnel vision (visual impairment involving a loss of peripheral vision)

scotoma (an isolated area of diminished vision within the visual field)

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)

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

moon blindness; night blindness; nyctalopia (inability to see clearly in dim light; due to a deficiency of vitamin A or to a retinal disorder)

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

quadrantanopia (blindness in one fourth of the visual field)

hemianopia; hemianopsia (blindness in one half of the visual field of one or both eyes)

day blindness; hemeralopia (inability to see clearly in bright light)

diplopia; double vision (visual impairment in which an object is seen as two objects)

color blindness; color vision deficiency; colour blindness; colour vision deficiency (genetic inability to distinguish differences in hue)

blindness; cecity; sightlessness (the state of being blind or lacking sight)

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

anorthopia (distorted vision in which straight lines appear curved)

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

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

amblyopia (visual impairment without apparent organic pathology)

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

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