Interviewer instructions
MS1. Do you have permanent sight limitations, even when using glasses?
This question seeks to find out if the person has some visual disability, it's important that you ask the entire question, that's to say only to mark "Yes" when the person, even having glasses on, doesn't see well.
Refer in the first place to people who suffer blindness in both e"Yes", that is to say that don't have perception of light or image in either eye, independently of the deficiency that is has produced. The people blind in one eye are considered having a sight limitation.
The people who, even using glasses, have difficulty perceiving size, shape and contour of objects at a normal distance should be considered. In this case, record option "1".
Examples of question MS1.
In spite of the fact that Juana uses glasses, she has difficulty recognizing the people even when they are close. This corresponds to making option "1".
Pedro had a cataracts operation but with glasses can see just fine. In this case, it corresponds to mark option "2".
With reference to Mariana, age 30 years, it is revealed that she has many problems seeing. You must investigate: what difficulties or problems does she have? What way is her daily activity (studies, work, etc.) limited?