Document ID: chunk:federal_register_of_legislation:F2023L00203:clause:1_159
Version: federal_register_of_legislation:F2023L00203
Segment Type: clause
Provision Reference: sch 1 cl 159
Character Range: 113849–115421

159     If an employee wears contact lenses each day and wishes to wear them for the test, this is acceptable for measuring acuity. In certain ocular conditions (particularly in the presence of corneal abnormalities) contact lens-corrected vision may be better than that obtained with spectacle correction. However, if an employee does not already wear contact lenses, they should not be fitted for an impairment assessment.
Figure 6-B: Revised LogMar equivalent for different reading cards
LogMar  Near Snellen  Equivalent to Snellen  N.   Points Roman  Revised Jaeger standard
0.3     14/14         6/6                    N5   3             1
0.4     14/18         6/7.5                  N6   4             2
0.5     14/21         6/9                    N7   5             3
0.6     14/24         6/12                   N8   6             4
0.65    14/28         6/15                   N9   7             5
0.7     14/35         6/18                   N10  8             6
0.725   14/40         6/24                   N12  9             7
0.75    14/45         6/30                   N15  10            8
0.8     14/60         6/36                   N17  11            9
0.9     14/70         6/48                   N18  12            10
1.0     14/80         6/60                   N20  13            11
1.1     14/88         6/90                   N24  14            12
1.3     14/112        6/120                  N40  21            13
1.6     14/140        6/240                  N80  23            14

    6.1.1   Determining the loss of central vision in one eye