Codes and Frequencies
For sample children under age 6 who are not blind (in 2002, only sample children under age 6), EYEXAMEV indicates if the child has ever had their vision tested by a doctor or other health professional. For those who answered affirmatively, a follow-up question asked the number of months since their vision was last tested (EYEXAMOS).
- 2002: Sample children under the age of 6.
- 2008; 2016 2017: Sample children under 6 who are not blind.
- 2002, 2008, 2016-2017
- 2002, 2008, 2016-2017 : SAMPWEIGHT