Table 2 Visual status considering the visual acuity from the best-seeing eye
From: Visual impairment and blindness in the Xingu Indigenous Park – Brazil
No visual impairment (VA ≥ 20/32) | Mild visual impairment (VA < 20/32 to VA ≥ 20/63) | Moderate visual impairment (VA < 20/63 to VA ≥ 20/200) | Severe visual impairment (VA < 20/200 to VA ≥ 20/400) | Blindness (VA < 20/400) | Total | |
|---|---|---|---|---|---|---|
N (%) | N (%) | N (%) | N (%) | N (%) | N (%) | |
0 to 17 years old | 818 (98.91) 824 (99.64) | 4 (0.48) 2 (0.24) | 3 (0.36) 0 (0.00) | 0 (0.00) 0 (0.00) | 2 (0.24) 1 (0.03) | 827 (100.00) |
18 to 44 years old | 776 (95.10) 799 (97.92) | 24 (2.94) 9 (1.10) | 10 (1.23) 6 (0.74) | 0 (0.00) 0 (0.00) | 6 (0.74) 2 (0.25) | 816 (100.00) |
45 years or more | 295 (64.69) 326 (71.49) | 66 (14.47) 51 (11.18) | 64 (14.04) 50 (10.96) | 2 (0.44) 2 (0.44) | 29 (6.36) 27 (5.92) | 456 (100.00) |
Total | 1889 (90.00) 1949 (92.85) | 94 (4.48) 62 (2.95) | 77 (3.67) 56 (2.67) | 2 (0.10) 2 (0.10) | 37 (1.76) 30 (1.43) | 2099 (100.0) |