vision defect


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ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.vision defect - impairment of the sense of sightvision defect - impairment of the sense of sight  
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; "diplopia often disappears when one eye is covered"
disability, disablement, handicap, impairment - the condition of being unable to perform as a consequence of physical or mental unfitness; "reading disability"; "hearing impairment"
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
Translations

vision defect

ndifetto della vista
References in periodicals archive ?
In its report, 'The Impact of Myopia and High Myopia,' the World Health Organization estimates that, by 2050, a total of 5,000,000,000 people worldwide, or a staggering 49.8 percent of the world's population, will suffer from this vision defect, and 938 million will suffer from high myopia.
On the reverse, I am still seeking a patient with a colour vision defect and a safety spectacle dispense, so I hope to move these to Visit 3.
Hwang, "Validity of the Worth 4 dot test in patients with red-green color vision defect," Optometry and Vision Science, vol.
Among patients with DR, visual impairment is present in 100%, color vision defect in 38% and elevated intraocular pressure in 2% (Table 6).
Frequency of Color Vision Defect in Students of Mashhad Dental School and Evaluation of Related Factors.
Achromatopsia is the most severe kind of colour vision defect (Adams et al., 2009).
"We have been looking to upgrade our vision defect detection systems for a few years.
?If the squint is associated with some vision defect, and spectacles are required, your child will be referred to an optician.
In addition to this new service, Metal Cutting continues to offer cleanroom metrology, camera vision defect detection systems, robotic multi-stage ultrasonic cleaning stations and electromagnetic non-destructive eddy current metallurgical flaw detectors.
Three types of vision defect, including colorblind, low vision and visual field deficiency are examined by the system.
Renk gorme kusuru (color vision defect): Dogumsal olan ve renkleri tam olarak ayirt edememe, renklerin bir kismini, toplumun cogundan farkli gorme durumu.
The case involved a city policeman who could not pass a state certification because of a vision defect but eventually received a waiver by the state.

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