Variable Description
Name
RC5B_2
Label
Med -Distant vision lft eye with glasses-lens
Dataset
Value | Label | Frequency | % of valid | % of all |
---|---|---|---|---|
-4 | Not asked | 0 |
0.00%
|
|
-2 | Not stated | 5,234 |
0.00%
|
|
-1 | No questionnaire | 5,472 |
0.00%
|
|
1 | 6 | 659 |
72.50%
|
0.00%
|
2 | 9 | 124 |
13.64%
|
0.00%
|
3 | 12 | 40 |
4.40%
|
0.00%
|
4 | 18 | 14 |
1.54%
|
0.00%
|
5 | 24 | 11 |
1.21%
|
0.00%
|
6 | 36 | 5 |
0.55%
|
0.00%
|
7 | 60 | 1 |
0.11%
|
0.00%
|
8 | Worse than 60 | 1 |
0.11%
|
0.00%
|
9 | Unable to test | 54 |
5.94%
|
0.00%
|
Valid | Invalid | Min | Max | Mean |
---|---|---|---|---|
909 | 10706 | 1 | 9 | 1.84 |
Representation
Type
Code List
Selection Style
SelectOne
Codes
-
-4 Not asked
-
-2 Not stated
-
-1 No questionnaire
-
1 6
-
2 9
-
3 12
-
4 18
-
5 24
-
6 36
-
7 60
-
8 Worse than 60
-
9 Unable to test
Aggregation Method
Unspecified
Temporal
False
Geographic
False
Source Questions
C5
85 questions before...
Test at exactly 20 feet with a standard Snellen Chart of block capitals. Hang chart in good light level with teenager's eyes and free from glare. Occlude opposite eye in usual way. Test all teenagers (without glasses) first and record result separately for Right Eye and Left Eye. Then re-test only teenagers with glasses/lens, wearing them.
DISTANT VISUAL ACUITY | |
---|---|
1 - 6 2 - 9 3 - 12 4 - 18 5 - 24 6 - 36 7 - 60 8 - Worse than 60 9 - Unable to test |
|
Crude distant vision without glasses (test all teenagers): Right eye | |
Crude distant vision without glasses (test all teenagers): Left eye | |
Distant vision, wearing glasses/contacts: Right eye | |
Distant vision, wearing glasses/contacts: Left eye |
A Sheridan-Gardiner near-vision chart is provided in the instruction manual. The teenager should hold it in a good light at a distance of approximately 10 inches away from the eyes. Please occlude the other eye efficiently without pressure on the eyeball. If the teenager cannot read, ask him/her to draw the letters in the air. Test near vision in all teenagers and then retest only teenagers with glasses/lenses, wearing them.
100 questions after...
View the complete questionnaire
Lineage
-
BCS70 Medical Examination (1986) Dataset - RC5B_2
Med -Distant vision lft eye with glasses-lens-
Test at exactly 20 feet with a standard Snellen Chart of block capitals. Hang chart in good light level with teenager's eyes and free from glare. Occlude opposite eye in usual way. Test all teenagers (without glasses) first and record result separately for Right Eye and Left Eye. Then re-test only teenagers with glasses/lens, wearing them.
-