Are you limited in how long you can work or do other activities because of your vision:Find:Pt:^Patient:Ord:PhenX
are you limited in how long you can work or do other activities because of your vision:find:pt:^patient:ord:phenx
Are you limited in how long you can work or do other activities because of your vision:Finding:To identify measures at a point in time:^Patient:Ordinal:PhenX
are you limited in how long you can work or do other activities because of your vision:finding:to identify measures at a point in time:^patient:ordinal:phenx