Table 4. The visual acuity and fundus of patients with high myopia.
Groups | Age(yr) | n | ≥=0.8 | ≥0.5<0.8 | ≥0.1<0.5 | <0.1 |
1 | 10-29 | 40 | 20(50.0) | 10(25.0) | 6(15.0) | 4(10.0) |
2 | 30-49 | 96 | 31(32.3) | 13(13.5) | 38(39.6) | 14(14.6) |
3 | 50-69 | 148 | 18(12.2) | 15(10.1) | 67(45.3) | 48(32.4) |
4 | 70-89 | 50 | 1(2.0) | 1(2.0) | 21(42.0) | 27(54.0) |
TN: total eye number; N: eye number; χ2=67.168, P=0.000
n(%)