Terminology Service for NFDI4Health
Blindness
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http://purl.obolibrary.org/obo/HP_0000618
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 degress in radius around central fixation. [ http://www.ncbi.nlm.nih.gov/pubmed/28779882 ]
Term info
Label
Blindness
Synonyms
- Blindness
- Total vision loss
Subsets
hposlim_core
comment
Various scales have been developed to describe the extent of vision loss and define blindness. Total blindness is the complete lack of form and visual light perception and is clinically recorded as NLP (no light perception). Blindness is frequently used to describe severe visual impairment with residual vision. Those described as having only light perception have no more sight than the ability to tell light from dark and the general direction of a light source.
has alternative id
HP:0007839
has obo namespace
human_phenotype
has related synonym
Legal blindness
id
HP:0000618
Term relations
Equivalent to:
- has_part some (
absent and
inheres in some visual perception and
has modifier some abnormal)