preferred_name: Severe visual loss (to 20/200 or worse--legal blindness), in the 4th to 6th decade
preferred_name_lc: severe visual loss (to 20/200 or worse--legal blindness), in the 4th to 6th decade
label: Severe visual loss (to 20/200 or worse--legal blindness), in the 4th to 6th decade
label_lc: severe visual loss (to 20/200 or worse--legal blindness), in the 4th to 6th decade