Disease or Syndrome
blindness
blind·ness [ blahynd-nehs ]
Subclass of:
Vision Disorders
Definitions related to blindness:
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Blindness is the condition of lacking visual perception defined as visual perception below 3/60 and/or a visual field of no greater than 10 degrees in radius around central fixation.Human Phenotype Ontology (HPO)The Human Phenotype Ontology Project, 2021
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Inability to see or the loss or absence of perception of visual stimuli; condition may be the result of eye, optic nerve, optic chiasm or brain diseases effecting the visual pathways or occipital lobe.CRISP ThesaurusNational Institutes of Health, 2006
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Profound visual impairment despite optimal refractive correction.NICHD Pediatric TerminologyU.S. National Cancer Institute, 2021
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The inability to see or the loss or absence of perception of visual stimuli. This condition may be the result of EYE DISEASES; OPTIC NERVE DISEASES; OPTIC CHIASM diseases; or BRAIN DISEASES affecting the VISUAL PATHWAYS or OCCIPITAL LOBE.NLM Medical Subject HeadingsU.S. National Library of Medicine, 2021
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The lack of vision. It is caused by neurological or physiological factors.NCI ThesaurusU.S. National Cancer Institute, 2021
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Blindness, transient or permanent inability to see any light at all (total blindness) or to retain any useful vision despite attempts at vision enhancement (functional blindness). Less-severe levels of vision impairment have been categorized, ranging from near-normal vision to various degrees of...Encyclopedia Britannica, Inc., 2020
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