preferred_name: Level that eye problems affected ability to do regular daily activities, other than work at a job in past 7 days
preferred_name_lc: level that eye problems affected ability to do regular daily activities, other than work at a job in past 7 days
label: Level that eye problems affected ability to do regular daily activities, other than work at a job in past 7D
label_lc: level that eye problems affected ability to do regular daily activities, other than work at a job in past 7d