Comparison of European decimals to Snellen equivalent for measurement of visual acuity
| Snellen equivalent | ||
|---|---|---|
| European decimal | 5 metres | 1 metre |
| 0.025 | 5/200 | |
| 0.03 | 5/160 | |
| 0.04 | 5/125 | |
| 0.05 | 5/100 | |
| 0.06 | 5/80 | |
| 0.08 | 5/63 | |
| 0.1 | 20/200 | 5/50 |
| 0.125 | 20/160 | 5/40 |
| 0.16 | 20/125 | 5/32 |
| 0.2 | 20/100 | 5/25 |
| 0.25 | 20/80 | 5/20 |
| 0.32 | 20/63 | 5/16 |
| 0.4 | 20/50 | 5/12.5 |
| 0.5 | 20/40 | 5/10 |
| 0.63 | 20/32 | |
| 0.8 | 20/25 | |
| 1.0 | 20/20 | |
| 1.25 | 20/16 | |