SAGE Well-Being of Older People Study 2013
Wave 2
South Africa, 2013
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Reference ID
ZAF_2013_SAGE-WOPS_v01_M
Producer(s)
Professor NEWELL, Marie-Louise, Dr MUTEVEDZI, Portia, Dr NYIRENDA, Makandwe,
Metadata
Created on
May 19, 2023
Last modified
May 19, 2023
Page views
9717
Downloads
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- Data files
- WOPSIISouthAfricaData
q507: Distance vision test - Left eye (q507)
Data file: WOPSIISouthAfricaData
Overview
Valid:
497
Invalid:
15
Type:
Discrete
Decimal:
0
Width:
10
Range:
0.100000001490116 - 998
Format:
Numeric
Questions and instructions
Literal question
Distance Vision-Left Eye
Categories
| Value | Category | Cases | |
|---|---|---|---|
| 0.100000001490116 | 19 |
3.8%
|
|
| 0.119999997317791 | 8 |
1.6%
|
|
| 0.159999996423721 | 4 |
0.8%
|
|
| 0.200000002980232 | 14 |
2.8%
|
|
| 0.25 | 11 |
2.2%
|
|
| 0.319999992847443 | 24 |
4.8%
|
|
| 0.400000005960464 | 32 |
6.4%
|
|
| 0.5 | 70 |
14.1%
|
|
| 0.629999995231628 | 83 |
16.7%
|
|
| 0.800000011920929 | 96 |
19.3%
|
|
| 1 | 76 |
15.3%
|
|
| 1.25 | 42 |
8.5%
|
|
| 1.60000002384186 | 18 |
3.6%
|
|
| 996 | Never | 0 |
0%
|
| 997 | N/A | 0 |
0%
|
| 998 | DK | 0 |
0%
|
| Sysmiss | 15 |
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.
Interviewer instructions
Interviewer to read: We are now going to test your distance and near vision.
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. 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, letter by letter, 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. The right eye can then be tested in the same way.
Distance Vision
INTERVIEWER: Start with the distance vision chart - using the 4 meters. If the respondent makes two errors or more in one row, the result is read as the previous row.
Interviewer read: We will start with your distance vision - and with your left eye. Would you please cover your right eye with the palm of your right hand. Please read
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. 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, letter by letter, 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. The right eye can then be tested in the same way.
Distance Vision
INTERVIEWER: Start with the distance vision chart - using the 4 meters. If the respondent makes two errors or more in one row, the result is read as the previous row.
Interviewer read: We will start with your distance vision - and with your left eye. Would you please cover your right eye with the palm of your right hand. Please read
Question post text
996. Never
997. N/A
998. DK
997. N/A
998. DK