Prevalence of ocular pathology by age
| Age (years) | |||||
| 40–49 | 50–59 | 60–69 | 70–79 | >80 | |
| Blindness (acuity<6/60) | 0.1% | 0.1% | 0.3% | 0.8% | 7.0% |
| Low vision (acuity<6/12) | 0.2% | 0.3% | 0.9% | 3.0% | 16.7% |
| Myopia | 36% | 23% | 17% | 15% | 18% |
| Cataract | 3% | 7% | 20% | 43% | 68% |
| Glaucoma | 1% | 1% | 2% | 4% | 8% |
Adapted from data from the US National Eye Institute6