part or complete incapacity to see, or to see normally, because of part or entire loss or lack of vision or to visual malfunction. Visual disability encompasses the continuum from blindness to low vision. It can stem from illness or degenerative disorder, damage, or congenital flaws . The level of it is evaluated with regard to impairment in daily life.
VISUAL IMPAIRMENT: "I'm surprised she'd gotten along in life this far with the degree of visual impairment she has."