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Composite binocular function score calculation
| Stereoacuity test outcome | BF score |
|---|---|
| Randot stereoacuity test | |
| 40 arc sec | 1.6 |
| 60 arc sec | 1.8 |
| 100 arc sec | 2.0 |
| 200 arc sec | 2.3 |
| 400 arc sec | 2.6 |
| 800 arc sec | 2.9 |
| Randot butterfly test | |
| 2000 arc sec | 3.3 |
| Worth 4 dot | |
| Simultaneous perception or second degree fusion (reports four or five dots) | 4.0 |
| Suppression (reports two red or three green dots) | 5.0 |
