Question pretext
To measure acuity in the left eye, the right eye is covered with right palm or an eye patch and the subject is asked to respond to each "E" in a row slowly, row by row, with your guidance. Only one reading of a given "E" is allowed. When the subject has difficulty, he or she is encouraged to guess. Responses can be verbal (Up, Down, Left, Right) or the respondent can indicate with a finger like in the training video.
The right eye can then be tested in the same way. Visual acuity in each eye can be recorded as explained in the Interviewers Manual.
Interviewer instructions
INTERVIEWER: Invite the respondent to sit again - in a chair positioned so that the respondent's head will be 4 meters from the eye chart. Make sure the person does not lean in closer to the chart during the test.
Distance vision
INTERVIEWER: Start with the distance vision chart - using the 4 metres measured out for the timed walk. If the respondent makes more than 2 errors in one row, and reads all letters in the row, their result is read as the previous row. Select and record the result from the column labeled "DECIMAL" on the left side of the chart.
