Personal module
All persons (health)
[Questions P21a to P23 were asked of all persons about their health.]
P21b. What causes this impairment?
Enter the relevant code for each of the impairments listed under P21a:
A. Seeing (even when using glasses)
[] 1 Congenital
[] 2 Illness
[] 3 Traffic accident
[] 4 Other accident
[] 5 Other cause
[] 7 Don't know
[] 9 No response