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Global data on visual impairment and blindness in 2015 (Bourne et al., 2017).
| World population (million) | Blind (million) | Moderate-to-severe VI (million) | Mild VI (million) | |
| TOTAL | 7330 | 36 | 217 | 188.5 |
| MEN | 3700 | 15.87 | 97.76 | 87.11 |
| WOMEN | 3630 | 20.14 | 118.85 | 101.44 |
VI, visual impairment.
