Document ID: chunk:federal_register_of_legislation:F2023L00203:clause:1_160
Version: federal_register_of_legislation:F2023L00203
Segment Type: clause
Provision Reference: sch 1 cl 160
Character Range: 115421–118413

160     The following steps are taken to assess loss of central vision in one eye.

Step 1  Measure the central acuity for distance and near, correcting for any refractive errors and presbyopia, and record the result.
Step 2  Consult Figure 6-C: Percentage loss of central vision in one eye to derive the overall loss, combining the values for corrected near and distance acuities.
Step 3  If monocular aphakia or pseudoaphakia is present then add 50% to the percentage loss of central vision obtained from Figure 6-C: Percentage loss of central vision in one eye.

    Figure 6-C: Percentage loss of central vision in one eye
Distance vision (metric 6)  Revised LogMar standard for near vision
0.3                         0.4                                      0.4  0.5  0.6  0.7  0.7  0.7  0.8  0.9  1.0  1.1  1.3  1.6
6/5                         0                                        0    3    4    5    25   27   30   40   43   44   45   48   49
6/6                         0                                        0    3    4    5    25   27   30   40   43   44   46   48   49
6/7.5                       3                                        3    5    6    8    28   30   33   43   45   46   48   50   52
6/10                        5                                        5    8    9    10   30   32   35   45   48   49   50   53   54
6/12                        8                                        8    10   11   13   33   35   38   48   50   5    53   55   57
6/15                        13                                       13   15   16   18   38   40   43   53   55   56   58   60   62
6/20                        16                                       16   18   20   22   41   44   46   56   59   60   61   64   65
6/22                        18                                       18   21   22   23   43   46   48   58   61   62   63   66   67
6/24                        20                                       20   23   24   25   45   47   50   60   63   64   65   68   69
6/30                        25                                       25   28   29   30   50   52   55   58   68   69   70   73   74
6/38                        30                                       30   33   34   35   55   57   60   70   73   74   75   78   79
6/50                        34                                       34   37   38   39   59   61   64   74   77   78   79   82   83
6/60                        40                                       40   43   44   45   65   67   70   80   83   84   85   88   89
6/90                        43                                       43   45   46   48   68   70   73   83   85   86   88   90   92
6/120                       45                                       45   48   49   50   70   72   75   85   88   89   90   93   94
6/240                       48                                       48   50   51   53   73   75   78   88   90   91   93   95   97

6.2        Determining loss of monocular visual fields