_:vb50947409 "A senile cataract that is characterized by variable opacification of the lens of the eye with some clear lens fibers remaining."^^ . _:vb50947409 . _:vb50947409 . _:vb50947409 . _:vb50947409 "url:https://en.wikipedia.org/wiki/Cataract"^^ . _:vb50947409 . _:vb50947409 .