K - Measurement of Refractive Error

The main survey was conducted by a nurse

Measurement of Refractive Error
VISREFA1Are you carrying autorefractor?
Measurement of Refractive Error (Test)
VISREFA2Autorefractor serial number
VSPHRRight eye sphere
VCYLRRight eye cylinder
VAXRRight eye axial
Respondent:
Cohort Member
Keywords:

Valid:
2858
Missing:
6519
Minimum:
0.0
Maximum:
999.0

Tabulation:
ValueLabelFreq. % 
999no response184 6.4 
-3Not applicable  
-2Not recorded - CAPI lost  
-1Not applicable,no consent  
VQUALRRight eye quality score
VSPHLLeft eye sphere
VCYLLLeft eye cylinder
VAXLLeftt eye axial
VQUALLLeft eye quality score
PRINTOUTPrintout attached to consent booklet?