From: Relationship between age, refractive errors and motor fusion in a normal Chinese adult population: a cross-sectional study
20–29 years
30–39 years
40–49 years
50–59 years
Total
Normal
17 (63.0 %)
37(52.9 %)
35(31.3 %)
24 (34.3 %)
111
Abnormal
10 (37.0 %)
33(47.1 %)
41(53.9 %)
46 (65.7 %)
132
27
70
76
243